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