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Modern Substation Automation Extended Use of the Standard from the Process Bus up to the Control Center. Authors: Klaus-Peter Brand ABB Switzerland Ivan De Mesmaeker Outgoing Chairman of CIGRE B5 ABB Switzerland. 8 th Symposium on Power System Management Cavtat, November 9-12, 2008.

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slide1

Modern Substation AutomationExtended Use of the Standard from the Process Bus up to the Control Center

Authors: Klaus-Peter BrandABB Switzerland

Ivan De Mesmaeker

Outgoing Chairman of CIGRE B5ABB Switzerland

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide2

Table of Contents - On-goings Level of integration Standardisation Typical bay and station level IEC 61850- Use of IEC 61850- Process bus- Communication between/outside substation- Conclusions

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

on goings level of integration

On-goings: Level of integration

Line 1

Main 1

Line 1

Main 2

Line 2

Main 1

Line 2

Main 2

Breaker 1 Control

Line 1 Main 1

Line 2 Main 2

(Breaker 2 Control)

Breaker 1

Control

Breaker 1

Control

Breaker 1

Control

QB1

QB1

Line 1

Line 1

QB2

QB2

Line 2

Line 2

(Breaker 2 Control)

Line 1 Main 2

Line 1 Main 1

Breaker 3 Control

QB3

QB3

7 IEDs

2 IEDs

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

on goings standardisation typical bay station level types

On-goings: Standardisation- Typical bay/station level types

BPS571

BCS671

BPS 571

Bay Protection Solution

BCS 671

Bay Control Solution

  • On supplier side
  • On utility side

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

on goings standardisation typical bay station level types5

On-goings: Standardisation- Typical bay/station level types

  • Required functionality and performance per bay(Impact on specification)
  • Lessons learned from CIGRE:
    • Specification functional oriented
    • Away from box to box approach
    • Functionality realised as near as possible to the primary processReference: CIGRE Brochure 329„Guidelines for specification and evaluation of Substation Automation Systems“

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

on goings standardisation iec 61850

On-goings: Standardisation / IEC 61850

Free configurationThe standard shall support different philosophies and allow a free allocation of functions e.g. it must work equally well for centralized (RTU like) or decentralized (SAS like) systems.

Long term stabilityThe standard shall be future proof, i.e. it must be able to follow the progress in communication technology as well as

evolving system requirements.

Interoperability The ability for IED’s from one or several manufacturer to exchange information and use the information for the their own functions.

Importance of Logical Nodes

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide7

On-goings: Standardisation / IEC 61850

Interchangeable between different engineering tools of different suppliers.

Important IEC61850 Files in SCL with predefined contents:

  • *.scd
    • describing the complete station including topology, communication and logical nodes
  • *.icd
    • describing device capability, pre-defined IED configuration or a project specific instant of a IED configuration
  • *.ssd (subset of SCD)
    • containing topology and the SA functionality (LN’s...) without concrete IEDs to run the functionality

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

prerequisite substation configuration language

On-goings: Standardisation / IEC 61850

Prerequisite – Substation Configuration Language

Topology

SCD

COMMUNICATION

Logical Nodes

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

contents of a scd file

On-goings: Standardisation / IEC 61850

Substation Structure

IEDs with loaded LNs

Relation between LNs

& single line

Complete Single line

Contents of a SCD file

=E1 Voltage level 110kV

=Q1 line bay / feeder

=Q2 line bay / feeder

=WB1 Busbar 1

=WB2 Busbar 2

=QB1

=QB2

=QB1

=QB2

IED -SB1

=S1CSWI1

IED -SB1

=S1CSWI1

=QA1

=QA1

=QC1

=QE1

=QC1

=QE1

=XW1

Communication

Subnetwork

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

longevity of initial investment

On-goings: Standardisation / IEC 61850

Exchangeable

System Configuration Tool

Control &

Protection

Concept

Switchyard

Portable

Substation Automation System

Specification

import

IEC61850 Data Model of theSubstation

Supplier

Knowhow

Station

Topology

SAS

capability

Longterm

Longterm

Short/medium term

Investments in engineering are save guarded because existing & tested SA design can be migrated to new technology of any manufacturer.

Longevity of initial investment

Reuse of know-how & engineering

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide11

Use of IEC 61850-Impact on specification - Impact on documentation: e.g. Signal Naming - Impact on engineering: Defined files (SCL files) Importance of the System Integrator (integration of third party) - Impact on testing: Testing facilitiesReference: CIGRE Brochure 326“Introduction of IEC 61850 and its impact on Protection and Automation within Substations”

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide12

On-goings: Standardisation- IEC 61850

Device in the system

Device capability

Single line

SCD per IED

Device (IED)

Device

specific

tool

Device data

Device data

Device data

Device data

Device data

Device data

Stand-alone device

configuration*

System device

configuration

System

configurator

Device selection

System

configuration*

System

documentation

System & device

configuration*

Function spec

Engineering process based on SCL data exchange

IED Configured IED

Description file (CID)

IED Configuration

Description (ICD)

System Configuration Description (SCD)

System specification description (SSD)

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide13

Use of IEC 61850-Impact on specification - Impact on documentation: e.g. Signal Naming - Impact on engineering: Defined files (SCL files) Importance of the System Integrator (integration of third party) - Impact on testing: Testing facilitiesReference: CIGRE Brochure 326“Introduction of IEC 61850 and its impact on Protection and Automation within Substations”

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide14

Impact on testing: Testing facilities

Validate &

Generate

The System Integrator

System Design Engineer

SCL

SCL

SA Testing &

Commissioning

Engineer

Configure

Testing

Environment

System

Configuration

Tool

Testing Tools

System

Testing Tools

Station HMI Engineer

Configuration

Tool

.SCD

Browse

Configure

SA System

Station

Compare

Simulate

Computer

Analyze

Client

Inter Bay Bus

IED

IED

MultipleIEDs

IED

IED

IED Configuration Tool

IED Configuration Tool

Process Bus

Process Interface

Process Interface

Control & Protection Engineer

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide15

Impact on testing: Testing facilities

Example: Test your IED without a SCADA System available.

  • Get a quick indication whether an IED is configured
  • Connect any IEC 61850 IED
  • Send commands with SCADA like command dialogs
  • Receive & display reports in process event list
  • Trace communication

Testing & Commissioning

Engineer

2

Explore IEDs

Explore Ethernet

Use Case Explore Ethernet Standalone IED testing

Inter Bay Bus

IED

IED

IED

IED

Process Bus

Process Interface

Process Interface

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide16

Process busInformation exchange between the substation system (bay level) with the HV equipment:- Voltage and current samples IEC 61850-9-2 LE (80 s/cycles= 4 kHz)- Switch position- CommandsMerging unit: Conv. CT/VT: conversion Bundling of samples (bay), f, synch.

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide17

Process bus

IEDs with LN instances without/with Process Bus

Protection

IED

Protection

IED

PDIS

PDIS

PDIS

PDIS

PTOC

PDIS

PTOC

PDIS

PTRC

PTRC

with Process Bus

TVTR

TCTR

XCBR

Merging

Unit IED

hardwired

Breaker

IED

TVTR

TCTR

XCBR

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide18

Logical Device

“Breaker IED”

Logical Device

“Breaker IED”

LN PCTR

LN PCTR

Logical Device

“Merging Unit”

LN PCTR

LN PCTR

LN XCBR

LN XCBR

LN PCTR

LN PCTR

LN TVTR

LN PCTR

LN PCTR

LN TCTR

Process bus

Samples

as values in

SI units

(SV)

TRIP

(GOOSE)

Protection

Device

Process

bus

The Samples

acc. to IEC 61850

Are independent from the instrument

Transformer/Sensor

Technology !!!

Independency from sensor technology

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

process bus

Process bus

Phase T

Control & Protection

devices

Protection Merging Unit

Phase S

Protection

system X

Phase R

Protection

system Y

IEC 61850-9-2

CIGRE Paris 2008: Business advantages due to the CT/VT economy

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide20

Process bus

Ethernet ring

Bay

Control

Protection 1

Protection 2

The process bus shall not jeopardize the requested independency of Main 1 and Main 2 !

Breaker

IED

Combined

NICT* (U,I)

Circuit br. IED

Merging Unit MU (U,I)

Primary technology

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide21

Communication between substations

Principle: IEC 61850 (GOOSE, SV, etc.) in / IEC 61850 (GOOSE, SV) out

Communication equipment:

- Has to guarantee performance and data integrity

- Has to support priorities, to provide quality attributes and health info. (IEC 61850-90-1 draft)

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

communication between substations

Communication between substations

Substation A

Substation B

IEC 61850

IEC 61850

WAN

transparent for

IEC 61850

messages

Line

Protection

Line

Protection

P

P

Line Bay

Line Bay

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide23

Communication outside the substation

Network Control Center

Frontend

IEC 61850

WAN

transparent for

IEC 61850

messages

IEC 61850

Gateway

Router

Substation Automation System

IEC 61850

Bay 1

Bay 2

Bay 3

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide24

Conclusions

  • Philosophy and spirit of IEC 61850 not only inside the Substation:Use of the IEC 61850 concept (Logical nodes) in other domain
  • Advantages: Better understanding (data model) Engineering and testing facilities (SCL)
    • Openess for future extensions Openess for process bus:Fully use of the advantages given by the new technology
  • Importance of the system integratortaking the responsability(integration of third party)

8th Symposium on Power System Management

Cavtat, November 9-12, 2008

slide25

Conclusions

Simulation

(Tool)

IED

Simulation

(Tool)

IED

ICD Files

Maintenance

(Tool)

IED

System

Integration/

Engineering

(Tool)

SCD

File

System

Refurbish-

ment

(Tool)

Maintenance

SAT

FAT

Upgrade

(Tool)

Switchyard

Single Line

SSD File

Test

(Tool)

Ref.: PACWORLDWinter 2008Brand

Functions

allocated

Test

(Tool)

Specification

8th Symposium on Power System Management

Cavtat, November 9-12, 2008