Release Information 11 - SimTecsincal.simtec.cc/11.0/ReleaseNotes-Eng.pdf · Release Information October 2014 11/37 2.2 Electrical Networks Improved Convergence in the Load Flow The

SIEMENS PSS SINCAL Platform 11.0

Release Information

October 2014 1/37

Release Information – PSS®SINCAL Platform 11.0

This document describes the most important additions and changes to the new program version. See the

product manuals for a more detailed description.

1 General Remarks 2

1.1 Licensing 2

1.2 General Configuration of the PSS SINCAL Platform 2

2 PSS®SINCAL 3

2.1 User Interface 3

2.2 Electrical Networks 11

3 PSS®NETOMAC 30

3.1 User Interface 30

3.2 Calculation Methods 34

4 PSS®NEVA 37

4.1 New Functions for Eigenvalue and Modal Analysis 37


Release Information

October 2014 2/37

1 General Remarks

1.1 Licensing

To operate the PSS SINCAL Platform 11.0, new license files are required. Once the program is

installed, these can be requested at the PSS SINCAL Platform Support (phone +43 699 12364435,

email [email protected]).

From Version 11.0, the PSS®SINCAL, PSS

®NETOMAC, PSS

®PDMS, PSS

®NEVA and

PSS®GMB/NETCAD are licensed with a common license file.

1.2 General Configuration of the PSS SINCAL Platform

The PSS Tool program enables general settings to be made for the applications of the PSS SINCAL

platform. These are carried out as before in the Configuration tab.

The Use local AppData directory option is a new feature here. This enables user-specific

application data to always be stored in the local AppData directory instead of the roaming AppData

directory (%APPDATA%) that is actually provided for it. This may be useful if the roaming of the

application data is particularly slow when network connections are poor.

The License File section is also a new feature. This is used to enter the license file required for

activating the PSS SINCAL Platform. This license file can be copied to any local directory as

required. Be aware here that each configuration completed only applies to one product version and is

also user-specific. In other words, different users can utilize different license files on the same

computer without any problem.

mailto:[email protected]


Release Information

October 2014 3/37

2 PSS®SINCAL

2.1 User Interface

New Provider for Background Maps

Since the beginning of 2014, the free Cloudmade background maps linked in PSS SINCAL have no

longer been available free of charge. The use of these maps is now subject to a charge.

In order to enable the use of free background maps, the provider MapQuest

(http://www.mapquest.com/http://www.mapquest.com) has been linked. The maps available free of

charge from this provider are likewise based on the OpenStreetMap data, i.e. they have the same

quality as those of Cloudmade.

They are configured as before in the Options dialog box. In the Background Maps tab it is now also

possible to select MapQuest as a map provider as well as Bing and Cloudmade.

Functional Enhancements in the Network Browser

The network browser in PSS SINCAL is the central tool for the non-modal processing of data

structures. In other words, the network graphics can be operated normally if the network browser is

active, unlike a data screen form or a dialog box. However, this function is far more difficult to

implement than a modal data screen form or dialog box since it requires continuous updating and

synchronization, depending on the active window and the content currently selected. Consequently,

only the most important data required for editing and evaluating networks is provided in the network

browser.

The Owner and Route functions were added to the editing functions in the network browser so that

the following functions are now available:

Topology

http://www.mapquest.com/http:/www.mapquest.com


Release Information

October 2014 4/37

Network Element Group

Graphic Element Group

Owner

Malfunction Scenario

Master Resource

Models

Feeder

Route

Calculate Routes

Update Graphics

Enhanced Functions for ISO Areas

All parameters set for the ISO areas are now saved in the SIN file of the network. When the network

is opened again, this makes all parameters available with exactly the same settings as before.

The ISO areas can now also be displayed transparently over the background images and maps. A

new option is provided for this that enables the opacity (Alpha) of the ISO visualization to be set.

This transparency can, however, only be used in the network graphics in conjunction with Direct2D

display and a transparent printout is likewise not possible. In other words, this new function can only

be used for screen evaluations.

Enhanced Switching Icons

Two new icons were added to the range of switching icons for the connections of network

elements in electrical networks: Circuit breakers and disconnectors. The simplified display of circle

and rectangle is used, as is already provided for the additional breaker element.

The Coloring of switches according to switch status (opened/closed) is also possible. The coloring


Release Information

October 2014 5/37

of the switches can be configured in the Format settings of the View.

New Selection Mode

The selection function in the graphics editor has been enhanced. It is now possible set whether the

elements to be selected must be completely or only partially covered in the selection area. This

setting is made with the toolbar button Select Objects – Selection Mode – Partially Covered.

Enhanced Tooltips

The function for displaying tooltips in the graphics editor was extensively upgraded.

Previously, the tooltip only displayed the data that was shown at the terminal of the element (results)

or on the symbol of the element (input data) in the annotation in the graphics editor.

It is now possible to individually configure the information shown in the tooltip. For this the tooltip is

assigned to an object type, for which the display content can be set in the Annotation and Filters

dialog box. The object type is assigned to the tooltips in the Options dialog box in the Advanced

Document Settings.


Release Information

October 2014 6/37

The following illustration shows the new tooltip on an asynchronous machine. The load flow results

(P and Q) are displayed in the network graphics. The tooltip, on the other hand, shows both the input

data as well as the individually configured load flow results (P, Q, S and cosphi).

Enhancements in the Diagram System

The user-defined objects in the diagram system have been made more flexible. The horizontal and

vertical markers can now display the position in the text label. This also functions with the new data

series label which can be assigned to one or two signals. This enables significant signal values to be

highlighted or the difference between two data series to be visualized. The following illustration

shows a protection diagram with the new object.


Release Information

October 2014 7/37

The ability to move all user-defined objects interactively in the diagram is a particularly useful feature.

When the mouse cursor is placed over a user-defined object, the symbol changes here to indicate

that interactive changes are possible.

The Show Signal Position function has also been improved. As before, the function can be

activated via the toolbar of the diagram window. The values of the data series for a defined X position

can then be shown in the legend. The values at the data series and on the X axis are marked with a

special round position marker and can also be moved interactively in the diagram.

In order to simplify the editing of user-defined data series in the diagrams, a new dialog box has been

added that enables the data of the series to be edited in tabular form.


Release Information

October 2014 8/37

Enhanced Filter Function in Tabular View

The filter functions provided in Tabular View have been enhanced. It is now possible to also define

more complex filter expressions to reduce the amount of display, and the Filter Excluding Selection

function that has been requested by many users is now provided.

Enhanced Variant Management Function

The function for using a variant as a base variant has been enhanced. Previously, using the function

deleted all variant data and the selected variant was used as a base. Although it was possible to

define a new base variant easily, all subvariants were lost.

It is now possible to retain as required all subvariants of a variant as the base. The following

illustration shows the Variant dialog box with a base variant and two subvariants: Variant 1 is

selected and defined as the new base. A new base variant and the Variant 1.1 are then retained.


Release Information

October 2014 9/37

Enhanced Graphics Updating

The function for the automatic updating of network graphics was provided with the new Node Level

selection criterion. This restricts the updating to those elements that are connected to the selected

node over a definable number of levels. Only these elements are then graphically updated.

This function is useful if the network to be updated does not have any useful criteria for restricting the

extent of the update. In this case, the entire network would be graphically generated by the update.

However, this is only rarely useful. The new function enables the update to be restricted to the

network area that is directly connected in the topology.

This new function is also useful if only one node with the directly adjacent network elements needs to

be updated. The following illustration shows an example of this. This shows the updating of a busbar


Release Information

October 2014 10/37

and all the nodes that are directly connected with it (node level = 1).

The Create bends option is also new. This now makes it possible to set in the user interface whether

additional bends should be added when the network graphic is generated. This produces better

results in the generated graphic but also makes manual editing more difficult.

New Automation Function in the User Interface

The new SelectObject automation function has been provided in the graphics editor to make the

selection of objects more flexible.

The following VBS snippet shows how two breakers can be selected.

' Select some objects SincalDoc.SelectObject "Breaker", 1, SIASelOptionNone SincalDoc.SelectObject "Breaker", 2, SIASelOptionAddSelection + SIASelOptionZoom

The syntax is very simple. The first parameter identifies the name of the table, in this case "Breaker",

and the second parameter contains the primary code of the object. The third parameter defines the

selection options.

Enumeration Code Description

SIASelOptionNone 0x00

SIASelOptionAddSelection 0x01 Add object to selection

SIASelOptionZoom 0x02 Zoom view of selection

SIASelOptionSelectEnclosed 0x04 Select enclosed objects instead of the object (e.g. substation)

Function for Updating the Sample Files

The Directories tab of the Options dialog box contains a new function that enables during the

installation the copying of sample files to the user's project directory. This is useful with new product

versions because it enables the simple updating of the existing sample networks.


Release Information

October 2014 11/37

2.2 Electrical Networks

Improved Convergence in the Load Flow

The convergence behavior of the load flow processes based on the admittance matrix has been

improved. In this process a PV type generator is always simulated as a stiff voltage source. The

active power of the generator is set via the voltage angle. If several of these generators are in the

network they mutually interact with each other. The load flow then needs a very high number of

iterations until convergence is achieved.

To improve the convergence behavior, the type PV generators are now variably simulated in the load

flow calculation, both as a stiff voltage source and also as a simple PQ type power supply source. As

soon as a PV type generator approaches its operating point, the simulation of a stiff voltage source is

changed to a power supply source for the next load flow iteration. As a result a stiff voltage source is

less present in the network in the next load flow iteration. This therefore reduces the mutual

interaction of the generators with each load flow iteration and thus improves convergence.

If the set voltage cannot be maintained for the simulation as a power supply source, the simulation is

once more changed to a stiff voltage source. The simulation can therefore change in each load flow

iteration. Ideally, no GU generators are simulated as stiff voltage sources by the end of the load flow

iteration.

Enhancements for Unbalanced Networks

The symmetry factors previously provided for unbalanced load flow calculations in PSS SINCAL

have been removed. As unbalance is defined in all standards, this is now also determined during the

unbalanced load flow calculation and harmonics calculation.

It is possible to define in the basic data of the calculation parameters how the unbalance is to be

calculated.


Release Information

October 2014 12/37

The following options are provided for calculating the Voltage Unbalance:

V2/V1 (voltage negative-phase sequence/voltage positive-phase sequence)

V0/V1 (voltage zero-phase sequence/voltage positive-phase sequence)

NEMA

IEC 61000-2-2

IEC 61000-2-4

IEC 61000-4-30

The node voltage unbalance is calculated according to the setting of the Basic Data of Calculation

Settings.

Negative-Phase Voltage/Positive-Phase Voltage (V2/V1):

The following value designates a unbalance factor:

0.100voltagephasepositive

voltagephasenegativeUSym

Zero-Phase Voltage/Positive-Phase Voltage (V0/V1):


0.100voltagephasepositive

voltagephasezeroUSym


Release Information

October 2014 13/37

NEMA:


0.3

VVVV 31AbsL23AbsL12AbsL

av rg

0.100V

VVUSym

av rg

av rg12AbsL

12L

0.100V

VVUSym

av rg

av rg23AbsL

23L

0.100V

VVUSym

av rg

av rg31AbsL

31L

)USym,USym,USym(MaximumUSym31L23L12L

Approximation according to IEC 61000-2-2:


0.1002

VVV

VVV6USym

2312312

231

223

212



0.1002

VVV

VVV6USym

2312312

231

223

212


The following value designates a unbalance factor for network frequency:

0.100631

631USym

22

f und312

f und232

f und12

4f und31

4f und23

4f und12

VVV

VVV

Improved Dialog Boxes for Short Circuit Calculation and Protection

Coordination

The short circuit calculation function in PSS SINCAL 10.5 has been enhanced. From this version

onwards it is possible to calculate a short circuit from phase values, either with contact to the return

conductor or ground. In order to start the enhanced short circuit calculation, dialog boxes were


Release Information

October 2014 14/37

provided that not all users could manage easily. The connection of the short circuit calculation in the

user interface has therefore been improved.

A new dialog is provided for starting the calculation, which then only shows the options that are

provided according to the settings made in the short circuit calculation parameters. The following

illustrations show the dialog box for the short circuit with symmetrical components and the dialog box

for the short circuit with phase values.

Better Control for Branch Optimization

The calculation process for optimizing the branches was improved. It is now possible to define for

each network level whether the assigned subnetwork are to be included in the optimization process.

The connection of all elements based on the setting in the calculation parameters of the optimization

has also been changed. Now only those elements are connected that are located in one of the

network levels involved in the branch search.

More Flexible Determination of Energy in the Arc Flash Calculation

PSS SINCAL previously calculated the incident energy at the node as the sum of all proportional

incident energies. The proportional incident energy is calculated here from the proportional arc

current and the associated tripping time.

)t,I(fEEf ractionf reef ractf racttotal

This way of determining the total incident energy allows a simple way of integrating the current

limitation of protection devices. The proportional current is limited and the energy is determined with

the limited current.

IEEE regulations stipulate that the arc current at the node is determined from the total bolted fault

current at the node. The clearing time should then be determined from the arc current and the data of

the protection devices. If the fault is switched off by more than one protection device, the clearing

time cannot be calculated using the arc current at the node. IEEE regulations do not specify how the

incident energy must be calculated in this case.

PSS SINCAL therefore provides additional processes to calculate the incident energy, which can be

selected in the calculation settings for the protection coordination.


Release Information

October 2014 15/37

Fraction: This is the previously used calculation procedure.

Worst Case: With this examination, the arc current at the node is determined from the total bolted

fault current at the node. The tripping times of the protection devices are then calculated from the

proportional arc currents. The highest tripping time is used to calculate the incident energy.

)t,I(fEmaxf reetotaltotal

Best Case: With this examination, the arc current at the node is determined from the total bolted

fault current at the node. The tripping times of the protection devices are then calculated from the

proportional arc currents. The smallest tripping time is used to calculate the incident energy.

)t,I(fEminf reetotaltotal

Time Steps: With this approach, the arc current at the node is determined from the total bolted fault

current at the node. The tripping times of the protection devices are then calculated from the

proportional arc currents. The smallest tripping time is used to calculate the incident energy of the

first time step. A temporary switch is then opened at the tripping protection device in the network, and

the total bolted fault current at the node and the tripping time of the protection devices are then

determined again. The difference in time from the previous examination is used to determine the

incident energy of the current time step.

)t,I(fEEstepf reesteptotalsteptotal

The current limitation of protection devices has an effect on the proportional fault current. The total

fault current is therefore reduced by the current reduction provided by the limitation.

)II(Iredf ractf racttotal


Release Information

October 2014 16/37

Enhanced Protection Coordination

The visualization of the data of asynchronous machines in the diagrams of the protection

coordination has been improved. Previously, it was only possible to show the behavior of the startup

current for one motor. For more optimum protection design, however, it should be possible to display

different startup scenarios. It is therefore now possible to set for the input data of the asynchronous

machine three voltages and times each in the Protection tab for the display of three Start-Up

Characteristics for It Diagram.

The behavior of the startup current in the I/t diagram is (if possible) taken from the set current/speed

characteristics of the motor. If a current/speed characteristic is not entered, the characteristics that

were generated from the motor identification are shown.

The Damage Curve Characteristic for It Diagram is another new feature. This enables the

destruction limit for the asynchronous machine to be shown in the diagram. Two times for the

destruction of the machine can be entered in the dialog box. Two I2t values reflecting the destruction

limit of the machine can then be determined using the startup current.

The following illustration shows an It diagram of the PSS SINCAL protection documentation with a

protection device and an asynchronous machine. The diagram shows two startup scenarios (blue)

and also cold and hot destruction characteristics for the machine.


Release Information

October 2014 17/37

A new network planning tool has been provided specially for the protection coordination, which

enables the pickup and tripping data of the protection devices selected in the network graphic to be

determined. The tool is started via Tools – Determining Data – Pickup and Tripping Data. The

dialog box then displays the minimum and maximum fault currents registered. These can be used,

for example, to visualize the information in an It diagram using vertical markers.

The automation function for fault observations has also been enhanced. The function can be

used to directly access the fault locations in the calculation methods. This is particularly useful, for

example, if protection calculations have to be performed automatically, for which the fault location is

placed variably in the network.


Release Information

October 2014 18/37

Fault observations are now provided with new attributes that enable all the important settings for

faults and breaks to also be changed during the automation process.

Attribute name Data type Unit Description

Node_ID Long Integer Sets the node

Element_ID Long Integer Sets the branch

Flag_State Integer Operating State

Flag_FaultPhase Integer Faulty Phases (0..7)

Flag_InterruptPhase Integer Interrupted Phases (0..7)

len Double Distance

Flag_FaultReturn Integer Fault to Return Conductor 1: Short Circuit 2: Return Circuit 3: Ground Circuit 4: Return and Ground Circuit

Flag_FaultGround Integer Fault to Ground 1: Short Circuit 2: Return Circuit 3: Ground Circuit 4: Return and Ground Circuit

Flag_RefPhase Integer Reference Phase 0: None 1: L1 2: L2 3: L3

Flag_CondFaultOn Integer Conditions Fault On 0: None 1: Default 2: Time 3: Voltage 4: Voltage and time delay

ton Double Time On

On_NodeID Long Integer On Node

Flag_PhaseOn Integer On Phase 1: L1 2: L2 3: L3

Flag_Val Integer On Value 1: Minimum 2: Maximum 3: User-defined

Uon Double On Voltage

dT1 Double On Time Delay – Next Phase

dT2 Double On Time Delay – Previous Phase

Flag_CondFaultOff Integer Conditions Fault Off 0: None 1: Default 2: Time 3: Current 4: Current and time delay

toff Double Time Off

Current Double Off Current

The following VBS snippet shows access to the attributes of a fault observation as part of the

automation of the calculation.

'Change Topology at PROTOCFAULT

Dim ProtOb Set ProtObj = SimulateObj.GetObj( "PROTOCFAULT", ProtID )


Release Information

October 2014 19/37

Dim NodeID NodeID = ProtObj.Item( "Node_ID" ) ProtObj.Item( "Node_ID" ) = NewNodeID

Protection Devices in the Dynamic Simulation

The protection coordination provided in PSS SINCAL has been tried and tested in practical

applications by hundreds of users over the years. In response to user requests, the possibility has

now been provided to analyze in detail the dynamics in the event of protection tripping in a real

network with generators, motors, consumers, different network elements, protection devices and a

wide range of fault locations.

Protection devices present in the network can now be considered optionally in the dynamic

simulation. This function can be activated in the calculation settings.

This is based on a dynamic simulation (stability), which is linked with the protection coordination. The

complete functionality of the protection simulation (overcurrent time, distance and differential

protection, signal transmission, etc.) can therefore also be used in the dynamic simulation.

The following illustration shows a simple network with an infeeder, a line, a load and a protection

device.

The network is simulated by PSS SINCAL for the dynamic simulation in the form of a NET file with

the network elements and controllers. The faults to be observed during the protection coordination

are also stored in the standard form. The only but important difference is that the protection devices

DI, OC, Dif


Release Information

October 2014 20/37

are simulated with special models. To simulate the tripping of a protection device in the dynamics

calculation, the current flow at the installation location of the protection device must be interrupted.

For this a shunt with a very low impedance is generated in the NET file at each location where a

protection device is installed.

The shunt is automatically assigned a protection model, which models the tripping of the protection

device by changing the impedance. The protection model must tap the actual currents and voltages

at the nodes of the voltage transformers and the terminals of the current transformers. These are

then transferred from the model to the protection coordination together with the actual simulation

time. The protection coordination checks the pickup and transfers to the model whether the

protection device has tripped. If the protection device has tripped, the protection device model

changes the impedance of the assigned shunt to a very high impedance. This operation is carried out

for each protection device in each time step.

Each protection device is assigned to a time memory in order to determine the pickup time. As soon

as a protection device picks up with the actual currents and voltages, the time difference is added to

the last simulation time in a time memory.

If the pickup time exceeds the end time of the particular trip unit, the protection device is tripped. The

protection device is not reclosed. The protection device stays in the tripped state for the remaining

time of the dynamic simulation.

Shunt with

protection model

Z Protection model

Z

Protection

simulation

Dynamic

simulation

V, I

t

Trip

V, I

t

Yes

t

Pickup

t2 t1

tUp = tUp + t

t3

No t4


Release Information

October 2014 21/37

As soon as a protection device does not pick up, the assigned time memory is reset. The time is run

once more from zero as soon as any new pickup occurs.

Optimized Network Structure for Dynamic Simulation

PSS SINCAL simulates elements without zero-phase sequence data as blocking for the zero current.

However, this is not the case in PSS NETOMAC. This requires in the interface for the dynamic

simulation a large volume of coupling data (M lines) with very high impedances. This extensive

coupling data then also causes problems in the dynamic simulation, even with a symmetrical

calculation, since the admittance matrix is extremely enlarged as a result.

In order to reduce this coupling data, an additional network analysis is carried out for the return

conductor, also in symmetrical networks, before the interface is created for the dynamic simulation. If

all nodes of an element are not connected to the return conductor, no zero-phase sequence data is

written to the interface.

Enhanced Motor Startup

The result diagrams of the motor startup calculation have been completely redesigned. Data

series are provided from the calculation with the data of the machines (power values, startup current,

speed, slip, voltage) as well as node results (node voltage, active power, reactive power). These data

series can now be combined as required in individual diagrams. The function is basically the same

here as the function provided in diagrams of the load profile calculation and the load development

calculation.

Yes

t

Pickup

tUp > tEnd

No tTrip

Yes

t

Pickup

tx+1 tx

tUp = tUp + t tUp = tUp + t

tx+2

No

tUp = 0


Release Information

October 2014 22/37

The motor startup calculation can now also provide load flow results for freely selectable time

steps. This makes it possible to display and evaluate the current and voltage distribution directly in

the network graphic during the startup phase. The time step for storing results is set in the calculation

settings for the motor startup.

As very extensive result data may be produced in large networks in some cases, the volume of

generated load flow results can be customized by the user. This is carried out in the calculation

settings in the Load Flow tab.

A simple motor identification for the motor startup calculation is now also provided. This is

provided because in existing systems the data sheets for many motors are not available and it is now

possible to provide default data (characteristics) precisely for these. The data provision can be

activated in the Characteristics tab of the asynchronous machine.

The missing characteristics are determined on the basis of the NEMA machine models. The basic

data of the asynchronous machine is used to generate appropriate NEMA data, which produces the

R/X ratio with the rotor at standstill and the startup current ratio. However, the nominal point of the

machine cannot be represented exactly. In practice this is not so important for the startup since the

75 percent of the startup at high current is followed by a transition and only a small part at the rated

current. The generated NEMA data of the motor is modified in a simple process until there is a good


Release Information

October 2014 23/37

approximation of the nominal point.

A characteristic curve with a breakaway torque of 15 percent of the rated torque is assumed for the

load torque. The load increase is linear from the breakaway torque with the rotor at standstill up to

the synchronous speed and passes through the rated torque at the rated speed.

Enhancements of the Reliability Calculation

The terms for reliability have been improved and standardized in the user interface (in the screen

forms) as well as in the result reports. As part of these improvements, the reliability data for network

groups was also arranged more clearly.

The simulation for asynchronous machine and static compensator has been enhanced. A

supply type and a switching option are now also provided for the network elements in the reliability

data. If the network element is used as a supply source, it is included in the list of supply sources and

is thus also included in the malfunction.


Release Information

October 2014 24/37

The load flow control for the reliability has likewise been modified. The control parameters for the

load flow with the reliability parameters now refer to the load flows of the malfunction combinations

and not to the basic load flow. The control parameters operate as follows:

Variation of the transformer taps for malfunction variants

o This option is used for all taps.

Secondary control also with malfunction variants

o This option activates/deactivates the power transfer and the power distribution.

Load shedding on undervoltage

o This option activates the load shedding. The voltage limit for load shedding is removed from

the settings for the reliability calculation.

o The loads that are shed in the PSS SINCAL load flow are listed in the reliability report.

The generator control cannot be defined separately for the malfunction variants. The generator

control is therefore only defined for the load flow calculation settings.


Release Information

October 2014 25/37

Enhancements of the Harmonics Calculation

The shunt RLC circuit in the harmonics calculation was extended with the new Filter C type. This

largely corresponds to the conventional high pass filter, only the capacitance C is connected here in

series with the inductance.

Equivalent Circuit Diagram Filter C

Equivalent Circuit Diagram High Pass

The modeling of the frequency dependence is also available with the CIGRE model for the general

load and the variable shunt element.

Modified Input Data for Shunt Capacitor and Shunt Reactor

Previously, the total power Sn [MVA] including the losses had to be stated for shunt capacitors and

shunt reactors. In response to the requests of many users, this has now been changed so that the

capacitive and inductive reactive power in [MVar] can be entered.

Enhanced Simulation for D0 Autotransformer

Previously, the D0 autotransformer could only be calculated in the unbalanced load flow. This was

because of the nonlinear effect of the individual windings on the voltage across several phases at the

node.

The D0 autotransformer is now also available in the symmetrical load flow calculation. If the tap

position control setting of the transformer is changed, the resulting voltage increase is calculated

from a derived formula of the admittance matrix.

Enhanced Controller Functions for Generators and Supply Sources

The controller functions for generators, supply sources and DC elements have been enhanced.

Previously, these elements only allowed the definition of a voltage-dependent reactive power

controller although network operators require voltage-dependent and/or active power-dependent

control of the reactive power. These controller functions have now been provided and can be

activated in the Controller tab of the network elements.

Vnetwork

Network node

L

Cs

C

R

Cs

R

Network node

L C Vnetwork


Release Information

October 2014 26/37

The Type of Controlling selection field can be used to define the basic controller behavior. The

following options are available here:

None: The set reactive power is maintained.

Voltage: The reactive power is controlled by the node voltage.

Power: The reactive power is controlled by the active power.

Voltage-Dependent Controller

Power-Dependent Controller

cos

U U2

0,95

1

inductive

U1 UN

capacitive

- 0,95

U1c U2c

cos

P/PN

Pmax

0,95

1

inductive

capacitive

- 0,95

0 - 0,85

Pmin

Pstd 0,85


Release Information

October 2014 27/37

Voltage-Dependent Reactive Power Controller: With the normal operating voltage VN,

decentralized supply sources usually only feed active power into the network with a power factor

(cosphi) of nearly 1.0. From a prescribed voltage of V1 or V1c, the decentralized supply source needs

to start changing this power factor, in order to participate in maintaining the voltage. Up to a

prescribed voltage of V2 or V2c, the decentralized supply source has to change the power factor to

the inductive or capacitive value prescribed by the network operator (usually 0.95 and -0.95). For

voltages over V2 or under V2c, the decentralized supply source has to keep the prescribed inductive

or capacitive power factor constant.

The variable reactive power causes a 90 degree shifted additional voltage drop or voltage increase.

This always changes the voltage at the connection node in the direction of the rated voltage.

Active Power Dependent Reactive Power Controller: Normally, the reactive power increases or

decreases with the load of the supply source. Above or below a set load limit, the decentralized

supply source must keep the set inductive or capacitive power factor constant. The power factor is

continuously adjusted between the load limits.

The variable reactive power causes a 90 degree shifted additional voltage drop or voltage increase.

This therefore supports the voltage maintenance in the network according to the requirements of the

network operator.

Modification of the Control and Limit Values

PSS SINCAL previously provided the option to choose in the calculation settings between a "Normal"

and "Enhanced" controlling. Normal controlling was used for network planning calculations, and the

enhanced controlling for calculating network operations. However, it was never clearly defined which

control behavior of network elements is actually active (when are limits considered or ignored, when

is the power redistributed and when not).

A standard controller behavior has therefore now been implemented in PSS SINCAL. There is now

only one general switch by which the controlling can be activated or deactivated. Furthermore,

controller functions to be activated can be selected via options.


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October 2014 28/37

The consideration of limit values in the calculation was also changed. The limit values set for

network elements are now always taken into consideration. This corresponds to the behavior of all

other network calculation programs, and only in this way can it be ensured that the equipment of the

network is operating correctly.

New Report for Short Circuit Calculation

A new report has been provided for the short circuit calculation. This shows the results of the

different short circuit calculations at the same time.


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October 2014 29/37

Variant Comparison for Setting Values of Protection Devices

The variant comparison now displays changes to the setting values of protection devices from the

ProtSettings table.

Enhanced Excel Import

The Excel import function now makes it possible to also import substations.

DINIS Import

DINIS is an information system from Fujitsu for medium-voltage and low-voltage distribution

networks. Data import of the DINIS external data format is now directly supported in order to offer

users of this system the possibility to utilize the extensive functions for analyzing and evaluating

electrical networks in PSS SINCAL.

This data is imported into PSS SINCAL in accordance with the documentation "DINIS(E) Utilities

Guide, External data interface, Version 6.4". The data of the network elements and also the network

graphic is imported from the DINIS ASCII file. The import is restricted to those network elements and

data that can also be simulated in PSS SINCAL:

Load

Generator

Transformer

Switch

Shunt

Induction motors

Transformer

The DINIS import can be started via File – Import – DINIS. For this a Wizard is opened for setting

the import parameters.

The Data Interface File and Line Types File for the import are selected on the first page of the

Wizard. The line types file entry is only required if the relevant data is not available in the external

data interface file.

The import settings can be made on the second page. The Node Name selection field is used to

define how the names of the nodes are created in PSS SINCAL (automatically generated or


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October 2014 30/37

according to the data fields from the data interface file). It is also necessary to specify the Base

frequency of the network.

CIM Import and Export for Version 16

The CIM import and export functions have been enhanced. CIM 16 in compliance with the "CIM for

ENTSO-E" profile is available. The implementation in PSS SINCAL is based on the results of the

Inter-Op in Brussels of July 14 to 18, 2014.

Restructuring of the EEG Tool

The EEG Tool (examination of connection requirements according to the German Renewable Energy

Act, EEG) has been completely restructured. The tool previously implemented as an external

automation tool has now been directly integrated in PSS SINCAL.

In line with PSS SINCAL philosophy, a two-stage integration with a separation from the GUI and the

calculation was carried out. The pure calculation sections have been implemented in the

PSS SINCAL calculation methods, and the user interface sections as well as the generation of Word

documentation are now implemented in the PSS SINCAL user interface.

This direct integration in PSS SINCAL has now provided a more homogeneous and consistent

connection. It furthermore allows use within the automated calculation function. The direct integration

also ensures that future adaptions and enhancements can be implemented quickly and efficiently.

3 PSS®NETOMAC

3.1 User Interface

Enhancements in the Diagram System

As in PSS SINCAL, the editing functions in the diagrams in PSS NETOMAC have also been

enhanced.

The new data series label can also be assigned to the signals. This can be used to identify a signal

more precisely or also to visualize a data value.

The ability to move all user-defined objects interactively in the diagram is a particularly useful feature.

In this way, the new objects can also be used to "measure" signal values or simply to intuitively

adjust the position of the objects for documentation.

The Show Signal Position function has also been improved. As before, the function can be


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October 2014 31/37

activated via the toolbar of the diagram window. The values of the data series for a defined X position

can then be shown in the legend. The values at the data series and on the X axis are marked with a

special round position marker and can also be moved interactively in the diagram.

Some new predefined page layouts based on the requests of users have also been provided:

Landscape format with 2, 3 and 4 diagrams.

Improvements in Tabular View

The data connection in Tabular View has been optimized for more extensive data volumes. The load

flow results of large networks are now loaded into Tabular View up to five times faster.

The selection function in the table has likewise been enhanced. Now several areas can also be

selected simultaneously. This is useful if the sums of the selected areas are to be calculated with the

totalize function integrated in the table.

The filter line has likewise been improved. The input in the filter line has been improved and also the

function for copying data. Now only data is copied that is also displayed when the filter line is active.

Export in ZIP Format

A new Wizard has been connected for exporting a project in ZIP format. This enables either all files

that are assigned to a project or also all files that are located in the project directory to be saved in a

ZIP archive. An option also makes it possible to control during saving whether the result files are also

included in the archive or whether these should be skipped.

Function for Deleting Results

The Project Explorer provides a new function that allows all results of a project to be deleted. The

function can be called via the pop-up menu of the Project Explorer. The Project Explorer also

provides a new option that enables the automatic deletion of all result files when closing a project.

In order to identify result files, the Extension Manager has been enhanced accordingly in the Options

dialog box. It is now possible to define for each file extension whether this is a result file or a normal

data file.


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October 2014 32/37

Enhanced Path Administration

It is now possible to define user-defined path variables in the calculation settings (CTL file). These

has been implemented primarily for using the dynamic simulation in conjunction with PSS SINCAL,

however, it is also useful for exchanging projects with users and for accessing global models.

The following example shows an extract of a network file in which a path variable was used for

implementing a model.

$

$ Macro to element: DCI1 (X0000a) in N1 (X00006)

$

$ Macro: WIND

$

@ #KP= .5

@ #PQref= 0.300000

@ #Pdc= 0.300000

@ #Plf= 0.247350

@ #Qlf= -0.004947

@ #TI= 0.002

@ #toff= 0.010000

@ #ELNAME= 'X0000a'

@ #KNO1= 'A0000a'

@ #LNAME00= 'X0000aR1'

@ #NAME= 'X0000a'

#LOCAL_PATH\PV_3phase2.mac

$

As can be seen, the model with the prefix LOCAL_PATH is called. This string was defined as a path

variable in the CTL file.

[Simulation/General]

$1......12......23......3AA1....12....23....34....45....56....67...78...89...9ZZ


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October 2014 33/37

1 1 / 1 200 4

1 1 0.001 0.001 50

4 4 0 4 -0 0.010.001

& 1e-4 0.1

[PathVar]

GLOBAL_PATH=D:\Setup.Dev\Models

LOCAL_PATH=D:\Network\_Samples\2014Oct\Dyn\Models

[End]

$

The path variables as well as the default paths can also be edited in the Calculation Settings dialog

box. For this the new Search Paths tab has been connected under Directories.

The upper section of the dialog box allows switching between Default Paths and Custom Paths.

These paths are used when processing the NET file. This allows, for example, models without paths

to be specified in the NET file. The search is then carried out in all specified search paths.

The Custom Path Variables section enables variables to be defined to which directories are

assigned. These variables can then be used in the NET file and are resolved accordingly (CTL file,

PathVar).

Page Settings in the Project File

The settings of the Page Setup dialog box are now saved in the project file instead of the registry.

This enables individual configurations (page formats, margins, headers and footers) to be defined for

each project.

Improved Documentation

The description of the procedure used in PSS NETOMAC has been revised. The terms for the input


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data have firstly been standardized and many additional descriptions and notes have also been

integrated, which were not fully transferred from the old system (e.g. popups from the old help

system).

3.2 Calculation Methods

Enhanced EVS

The Eigenvalue Screening (EVS) function provided in PSS NETOMAC now offers a faster and

simple method for determining eigenvalues. Although not all the functions of PSS NEVA are

provided, it is considerably faster and easier to use.

The eigenvalue screening can be activated via the calculation settings. If the Activate Eigenvalue

Screening is activated, the screening is performed automatically after the dynamic simulation.

After the dynamic simulation is completed, an EVS file containing the results of the screening for

display in the diagram is provided in addition to the RES file. The result diagrams can then be

created simply via the Diagram Page from EVS function.


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October 2014 35/37

This dialog box is used to set parameters for the appearance of the diagram. It is possible to select

between a simple display (only diagram) and an enhanced display (diagram and table). Parameters

can also be defined that control the display of data in the diagram. It is therefore possible, for

example, to configure whether the Zeta line is to be displayed, and also the unit of the Y axis can be

selected (frequency or omega).

The configuration of the diagram only has to be completed once. With new calculations the result

data is automatically entered in the diagram.

The combined use of table and diagram is particularly useful for analyzing large networks with many

machines. For this the area to be analyzed is selected interactively in the diagram. The Select in

Tabular View function can be activated in the pop-up menu in the diagram.


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October 2014 36/37

This opens the table and shows precisely those elements that are displayed in the diagram.

Load Flow with Partitions

The load flow in PSS NETOMAC is normally completely solved for each individual partition. If

individual partitions are coupled via assigned currents/voltages (SOURCE controller), it may be

necessary to calculate a combined load flow, i.e. allow for the effects of the individual partitions on

each other.

An additional section in the NET file must be provided to calculate a combined load flow across

several partitions. This data set is begun with [Combined Loadflow] and closed with [End

Combined Loadflow], and must be positioned directly behind the "E" of the network data.

The data set defines which partitions are calculated jointly. It is identified by entering the same

numbers in column 27, i.e. several combined load flows may be determined if several different

identifiers are entered.

[Simulation/General] $1......12......23......3AA1....12....23....34....45....56....67...78...89...9ZZ Part1 Part2 Branchx 1 .01 Part1 Part2 Branchy 1 .01 [End Combined Loadflow]

The partitions identified as combined are called in succession and iterated until the accuracy of the

apparent power of the specified branches falls within the specified accuracy limit.

The convergence of the assigned currents/voltages is not improved internally/automatically.


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October 2014 37/37

4 PSS®NEVA

4.1 New Functions for Eigenvalue and Modal Analysis

The following controllers and blocks are now also supported in PSS NEVA:

U_DFIG controller

U2_DFIG controller

INPUT_DF block

INITIAL block

AA/RI block

Documents

Release Information 11 - SimTecsincal.simtec.cc/11.0/ReleaseNotes-Eng.pdf · Release Information October 2014 11/37 2.2 Electrical Networks Improved Convergence in the Load Flow The