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SHF - Enhancing hydropower plants – Grenoble, April 9-11, 2014
HYDROELECTRIC POWER PLANTS
AUTOMATION USING IEC 61850:
EXPERIENCES AND IMPROVEMENTS FOR
THE USER
Erik San Telmo, Esther Alonso (Ingeteam Power Technology S.A.)
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INDEX
IEC 61850
INTRODUCTION
MOTIVATION TO USE
ENGINEERING PROCESS
ADVANTAGES
NAMING
INTEGRATION
TIMESTAMPS
SEQ. OF EVENTS
WIRING
CONCLUSIONS
1. IEC 61850 principles
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IEC 61850 – Principles and evolution
Distributed Energy Resources
Hydro – Wind
Substations
IEC 61850 Devices
Protective relays
SCADA HMI
Logic Controllers
Remote Terminal
Units
Meters
Inverters
IEC 61850
Common information
model
Standard communication mechanisms
EVOLUTION
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IEC 61850 – Motivation to use IEC 61850 in Hydro automation
User requirements
Technology available
Timestamps
Event list on comms failures
INGESYS IC3 PLC
INGESYS IT SCADA – HMI
INGEPAC Protective relay
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IEC 61850 architecture
RTU
IC3
Group
controller
IC3 Auxiliar services
and general set-
points
SCADA – HMI –
(RTU)
Generator
Protective
relay
Transformer
Protective
relay
CONTROL + REGULATION PROTECTION
IEC 61850 network
MONITORING AND TELECONTROL
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IEC 61850 engineering process
Engineering process
1.
IEC 61850 Modeling
2. Protection integration
3.
System configuration
4.
SCADA configuration
5.
Logic controller programming
6.
Validation and testing
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Step 1 – Logic controllers IEC 61850 modeling
Identify information exchanged
Select IEC 61850 information objects
Create IEC 61850 configuration file
IEC 61850-7-4
SPRS Pressure
supervision
XCBR
Circuit breaker
MMXU
Measurements
IEC 61850-7-410
Hydro specific
KPMP
Pump
KVLV
Valve
HSEQ
Sequencer
Group
controller ICD
file
(XML standard
format)
IEC 61850 defines
a virtual
information model
of the hydro
power plant
components using
“Logical Nodes”.
Plant
controller ICD
file
(XML standard
format)
* ICD: IED(Intelligent Device) Capability Description
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Step 2 – Integration of protective relays
Group
controller
ICD file
Plant
controller
ICD file
Generator
Protection
ICD file
Transformer
Protection
ICD file
Provided by manufacturer
Engineered
according
to utility requirements
Hydro power
plant complete
“virtual”
information
model
SCD file
* SCD: System Configuration Description
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Step 3 – System configuration – Data interchanges
Gen.
Prot.
Transf.
Prot. Group
Controller Group
Controller 2
Group
Controller 1 Plant
Controller
SCADA HMI
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Step 4 – SCADA Configuration
SCADA
Configuration
KPMP
Logical node for Pump information
Each IEC 61850 logical node defines a set of standard
data points for status information, commands or/and
settings.
SCADA manufacturers can define component libraries
with predefined objects that use the standard IEC
61850 data information.
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Step 5 – Programmable Logic Controller programming
DI/DO
AI/AO
IEC 61131
POUs
IEC 61850
WRAPPER
IEC 61850 model
binding to 61131
information
IEC 61850 Server
KVLV
SPRS
XCBR
KPMP
HSEQ
2. Advantages for the user
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Advantages of using IEC 61850
1. Standard naming and format
2. Integration of protective relays
3. Sequence of events
4. Time stamping of data
5. Wiring reduction
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1. Standard naming and format
Utility A
Utility B
Puissance
ActivePower
Utility C Pot Activa
FLOAT32 (W)
INT16 (kW)
FLOAT32 (MW)
MMXU
TotW
MV structure
name type
mag.f FLOAT32
q Quality
t Timestamp
units.SIUnit Enumeration
units.multiplier Enumeration
range Enumeration
Each utility or system
integrator defines the
information name and
format.
Conversions are needed.
The standard defines the
name and the format of each
data point
Means Measurements
Means Total active power
Time reduction.
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2. Integration of protection devices
FROM THE IEC 61850
INTERFACE ALL RELAYS
LOOK EQUAL.
Time reduction.
IED xxx
LDXXX
PIOC
PTOC
Op
PXXX
Op
Op
All protection function
logical nodes start with
“P”
The Trip is always “Op”
Connect the trip
information with the
PLC and done
INTEGRATED !!!
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3. Sequence of events
MODBUS Basic polling:
If communication link is broken, sequence of events is lost.
BRCB: buffered report control block
MODBUS special register for events
MODBUS current values
IEC 61850 includes a native “Buffered Reporting” mechanism.
The server stores events in case of communication lost. All IEC servers behave the same way.
Cyclic transmission of current values and
registers for events
Spontaneous transmission
Better functionality.
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4. Time-stamping
Digital inputs with
1ms resolution
IEC 61131 data
change with TASK
cycle resolution
Digital inputs with
1ms resolution
‘Trips’ with 1ms
resolution
More detailed
sequence of events.
Events not related to
scan cycle period name type
stVal BOOLEAN
q Quality
t Timestamp
Better functionality.
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5. Wiring reduction – GOOSE – Generic Object Oriented System Event
GOOSE
repetition
should arrive
here
Event !!
Fast repetition
mechanism
few ms
GOOSE lost
detection
Aggregation: an Ethernet cable transports several digital signals in 1 GOOSE message.
Wire and communication failure detection.
t
More security and cost reduction.
3. Conclusions
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CONCLUSIONS
Our experience in engineering time
Modbus
Modbus MULTIVENDOR
FIRST IEC 61850
IEC 61850
IEC 61850 MULTIVENDOR
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CONCLUSIONS
IEC 61850 is a valid solution for hydro power plant automation.
- First 2 IEC 61850 projects required big effort.
- Better in functionality.
- More efficient in multivendor projects.
- We use it depending on the user requirement and the devices to integrate.
- More than 10 IEC 61850 hydro projects mainly in Spain.
Thank You