NewFeatures_PSIMV9.2

8/13/2019 NewFeatures_PSIMV9.2

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New Features in PSIM Version 9.2

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Highlights of key new features in PSIM Version 9.2 are:

NewHEV Design Suite

Lithium-Ion model

MTPA, Field Weakening, and other control blocks for motor drives and HEV

Space vector PWM block

Parameter Tool for math calculation

Improved C block for easy editing

Digital controller design capability in SmartCtrl Pro

NewModCoupler-Verilog Modulefor Verilog code support

Link to CosiMate co-simulation platform

Description of key new features in Version 9.2, as compared to Version 9.1, is given below.

HEV Design Suite

The all new HEV Design Suite provides a one-stop solution from system specifications to a

completely designed HEV powertrain system. Using predefined templates, the HEV Design Suite

automatically designs the power circuit and control circuit, and produces a system that is functionaland ready to simulate.

The HEV Design Suite allows users to quickly establish a baseline design for further optimization,and helps speed up the development process significantly.

Four design templates are provided in the HEV Design Suite: Series/Parallel HEV powertrain

system with bi-directional dc-dc converter; Plug-in HEV (PHEV) powertrain system, HEVTraction Motor Drive, and HEV Generator, as shown below.

Series/Parallel HEV Plug-In HEV


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Motor Control Blocks

The traction motor and generator in the HEV powertrain system come with the complete set of

controls. For example, the controller of a traction motor consists of Current Control, Maximum-Torque-Per-Ampere (MTPA) Control, Field Weakening Control, Torque Control, Dynamic Torque

Limit Control, and Speed Control, as shown below.

Also, for the bi-directional dc-dc converter in a HEV system, Charging Control, Discharging

Control, and Regeneration Control blocks are provides to regulate the charge and discharge of the

battery pack.

Lithium-Ion Battery Model

A lithium-ion battery model is added to the Renewable Energy Module and the HEV Design Suite.Based on manufacturer datasheet, the model can predict the charging and discharging process of a

battery.

The figure below shows the datasheet discharge and charge curves of a lithium-ion battery, and the

simulated waveforms from the battery model.

The battery model can be used to model various types of batteries.

HEV Traction Motor HEV Generator


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PSIM

Parameter File and Tool

The functionality of parameter files is improved significantly. Values of all variables in a

parameter file can be displayed, making it very easy to check the calculation. Also, the script

capability is added. For example, a conditional statement can be used, allowing certainvariables to have different values based on specific conditions.

The figure below shows a parameter file with conditional statements and with values displayed.


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The new multiplexers allow control inputs to be selected individually, making it easier to use in

certain situations.

Lookup Table

Functions of lookup tables are improved. Lookup table data can be edited directly in the PSIMschematic environment. In addition, for one-dimensional lookup tables, the output-input

relationship can be plotted graphically, as shown below:

Motor Drive Module:

The Maximum-Torque-Per-Ampere (MTPA) control block and Field Weakening control block for

PMSM are added. Based on the current reference, the MTPA block will automatically calculate the

d-axis and q-axis current references such that the machine generates the maximum amount oftorque. The Field Weakening control block, on the other hand, calculates the d-axis and q-axis

current references to achieve the maximum output power.

Digital Control Module

A PI controller and 1st-order and 2nd-order filters are added to the Digital Control Module, as

shown below:

SimCoupler Module:

The function to pass a variable value from Simulink to PSIM through the SimCoupler link isadded. A variable can be defined in Simulink, and this variable can be used in PSIM.

ModCoupler-Verilog Module:

A new ModCoupler-Verilog Module is added. This Module provides the link for co-simulation

between PSIM and ModelSim where a control scheme implemented in Verilog code can be

simulated in ModelSim and the rest of the system in PSIM. This provides a quick way of validatingcontrol code for hardware implementation in FPGA.


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Link to CosiMate:

CosiMate is a co-simulation platform that supports various software, such as Matlab/Simulink,

ModelSim, Saber, Statemate, Rhapsody, Easy5, Adams, Inventor, AMESim, GT-Power, etc. Withthe link to CosiMate, one can perform co-simulation between PSIM and these software.

SmartCtrl

A number of enhancement is incorporated in SmartCtrl, as shown below.

SmartCtrl Profor Digital Controller Design

Digital controller design capability is now provided as an add-on option to SmartCtrl (as part of

SmartCtrl Pro). With this option, one can design a controller in analog s-domain, define digital

delay, and check the control loop stability with the digital delay taken into account. Once thecontroller is designed, digital controller coefficients for z-domain implementation are

generated.

New Link between SmartCtrl and PSIM

Previously, after a controller is designed, only the controller is exported to PSIM. Now both thepower stage and sensors can also be exported to PSIM, reducing users' effort to set up thecomplete circuit.

New Audio Susceptibility and Output Impedance Functions

For dc-dc converters, the transfer functions between the output voltage to input voltage (audio

susceptibility) and between the output voltage to output current (output impedance) are now

available and can be plotted as additional Bode plots. These transfer functions are very usefulin system stability analysis.

s-domain Transfer Function for the Plant

Previously, a plant is defined through either a predefined topology or imported ac sweep data

file. Now a plant can be defined by a s-domain transfer function. This makes it very easy if theplant transfer function is already available.

In addition, a plant wizard is provided to help users define the plant model. This option

provides great flexibility to create and manage power converter models.

Tuning of PI Controller

A PI controller is widely used, and users often would adjust the gain and the time constant to

fine tune the control loop performance. An option is provided to adjust the gain and time

constant, and a new plot is provided to show how the adjustment affects the control loop.

Enhanced Power Factor Correction Controller Design

The way to design the controllers of a power factor correction boost converter is improved.

New Export Function

The numerical data of every transfer function (e.g. plant, open loop and closed loop transfer

functions) can be exported to PSIM, MathCad, Matlab, Excel, etc., via a text file.

Documents

NewFeatures_PSIMV9.2