Zug, Switzerland Los Angeles, CA Pittsburgh, PA - i-PCGRID Workshop … · 2016-01-20 · Zug,...

What’s New in IEC 61850?Status and Advantages

Christoph Brunner

it4power

Zug, Switzerland

Alex Apostolov

OMICRON

Los Angeles, CA

Eric A. Udren

Quanta Technology

Pittsburgh, PA

Presented to

i-PCGRID Workshop 2011Pacific Gas & Electric Company

San Francisco, CA

March 31, 2011

Zug, Switzerland Los Angeles, CA Pittsburgh, PA

IEC 61850 is living and growing

� The part you knew – IEC

61850 Edition 1 – the seed – 1700 pages of living genome.

IEC 61850 Edition 2

� International application -polished genes

© 2011 Quanta Services, Inc.

polished genes

� Expanded structure

� New clarity

� TISSUES (bugs) cleared

� New practical features

� New application domains

IEC 61850 is branching

New parts of IEC 61850

� Expanding outside the

substation

� Between substations

� To control centers

� Communications and


� Communications and application modeling across the entire power system

� Integration with enterprise systems

� Interfaces with popular SCADA and control protocols

IEC 61850 standard parts (Ed 1)

Data Models

Basic Communication Structure for Substations and Feeder Equipment

Part 7-4: Compatible Logical Node Classes and

Data ClassesPart 7-3: Common Data Classes

Abstract Comm. Services

Basic Communication Structure for

System Aspects

Part 1: Introduction and Overview

Part 2: Glossary

Part 3: General RequirementsPart 4: System and Project

Management

Part 5: Comm Requirements


Configuration

Part 6: Configuration Lan-guage for electrical

Substation IED’s

TestingPart 10: Conform. Testing

Mapping to real Comm. Networks (SCSM)

Part 8-1: Mapping to MMS and ISO/IEC 8802-3

Part 9-1: Sampled Values over Serial Unidirectional Multidrop Point-to-Point link

Part 9-2: Sampled Values over ISO/IEC 8802-3

Basic Communication Structure for Substations and Feeder Equipment

Part 7-2: Abstract Communication Services (ACSI)

Part 7-1: Principles and Models

for Functions and Device Models

What is new in Ed 2 of existing parts?

� Clarifications and corrections (TISSUES)

� Modeling

� Power Quality

� Statistical evaluation of informatio

� New models for mechanical equipment and


� New models for mechanical equipment and measurements of non-electric quantities

� Enhanced features for testing support

� Support for exchange of engineering information across projects

� Redundancy – possibility to have IEDs with dual connections

IEC 61850 – new parts

� IEC 61850-7-410 – Hydroelectric power plants –Communication for monitoring and control

� IEC 61850-7-420 – Communication Systems for Distributed Energy Resources (DER)

� IEC 61850-7-500 / -7-510 (Technical Reports)


� Explain how to use the concepts of IEC 61850 to model the applications

� IEC 61400-25-x – Communications for monitoring and control of wind power plants

Mappings for gateways

� IEC 61850-80-1 –Guideline to exchange information from a CDC

based data model using IEC 60870-5-101 / -104

� IEEE 1815.1 – Exchanging

Station Controller & Gateway

Bay Controller

61850

101/104

61850

Protection

61850


� IEEE 1815.1 – Exchanging Information between networks Implementing IEC 61850 and IEEE1815 (DNP3)

� Intended to become a IEC dual logo standard (IEC 61850-80-2)

DNP Master

DNP Outstation

IEC 61580 Client

IEC 61850

Device

IEC 61850

Device

IEC 61850

Device

IEC 61850

Device

Gateway

How to address new areas?

� Prepare technical reports "how to use IEC 61850 for... "

� Technical reports describing

� The use cases considered

� The impact on the communication

� The impact on the modeling


� The impact on the modeling

� The impact on the engineering

� Results will be used to update the standards (Amendment / new Edition)

WG10 technical reports

� IEC 61850-90-1: Using IEC 61850 for communication between substations (published)

� IEC 61850-90-2: Using IEC 61850 for communication between substations and control center

� IEC 61850-90-3: Using IEC 61850 for condition

monitoring


monitoring

� IEC 61850-90-4: Network engineering guidelines

� IEC 61850-90-5: Using IEC 61850 to transmit synchrophasor information according to IEEE C37.118

WG17 technical reports

� IEC 61850-90-6: Using IEC 61850 for distribution automation

� IEC 61850-90-7: IEC 61850 object models for photovoltaic, storage and other DER inverters

� IEC 61850-90-8: IEC 61850 object models for electrical

vehicles


vehicles

� IEC 61850-90-9: IEC 61850 object models for battery storage systems

� Provide a "fast track" for urgently needed models for SmartGrid applications

� Supported by the name space concept of IEC 61850

Further topics under consideration

� Methodologies for testing of functions in IEC 61850 based systems

� In a first step, a technical report shall be prepared to address the topic

� A document will be circulated within IEC to inform

about the planned work


about the planned work

� Modeling of logics

� Goal is to support design of distributed logic

� Prepare UML model of IEC 61850

� Prepare webbased access to IEC 61850 models

Mirroring control information

IED

Control service

Wired outputctlVal

opRcvd


opOk

tOpOk

Isolation and test

Protection IED

Pxxx

PTRC

LPHDTEST

TestSet

Sim

Samples (Sim=TRUE)Samples (Sim=FALSE)


Merging Unit

TCTRTCTRTCTR

TVTRTVTRTVTR

Breaker

XCBR

TEST-BLOCKED

XCBR.Pos.opOk

XCBR.Pos.tOpOk

Samples (Sim=TRUE)Samples (Sim=FALSE)

Trip (Test=FALSE)

Trip (Test= TRUE)

Test of interlocking


What’s New in IEC 61850?Parts 90-X and other new features

Eric A. Udren

Quanta TechnologyQuanta Technology

Pittsburgh, PA

Part 90-1 – 61850 communications between substations

High speed GOOSE or SV packets between stations for:

� Directional Comparison pilot/unit line protection - POTT, blocking

� Current differential & phase comparison line protection

� Direct transfer trip; interstation interlocking or operation blocking

� Synchrophasors; reclosing including parallel line applications.

� SIPS & RAS; generator shedding; out-of-step protection

� Fault locator systems


� Fault locator systems

Typical needs:

� V &I, phasor/filtered or instantaneous; binary points

� Data synchronized between subs (time error < 0.1 ms)

� Bandwidth for three phase measurements (≥ 64 kbps)

� Propagation delay usually critical (≤ 5 ms)

� High reliability - low BER <10-6, redundant paths

� Backup functions in the functional design

90-1 on interstation communications

� 61850 communications, modeling/semantics, & system

engineering across stations need Ethernet communications.

� Ethernet between stations:

� Wideband direct interfaces of LANs

� Tunnel that filters and directly passes packets

� Gateway that acts as a proxy for packets


� Ethernet LAN/WAN configuration advice

Station A

Function A1

Function A2

Station B

Function B1

Function B2

Transparent Tunnel

??Proxy

B1

Teleprotection equipmentacting as gateway

?

Part 90-1 contents

� Use cases for functions

� Performance classes – latency, bandwidth, security & dependability…

� New LNs for channel configuration , DC, differential protection – fed back to 7-4 Ed.2 (ITPC, PSCH, RMXU)

� Ethernet communications transport strategies/design


� Project engineering design and use of SCL (Part 6) across multiple substations with shared functions

Result - use GOOSE and Sampled Values services as already defined in Parts 7, 8-1, 9-2 - publish and subscribe between stations!

61850-90-2 and 90-3

� 90-2 - Using IEC 61850 for the communication between substations and control centers – in development

� 90-3 – Condition monitoring of primary power apparatus –communications & asset management requirements:

� Transformers, LTCs

� GIS


� GIS

� Lines, UG cables

� Sta. batteries

Secondary condition monitoring

� Condition monitoring of secondary systems (P&C equipment) – will be separate development

� Take advantage of self-monitoring functions of relays and IEDs –internal processors and related

parts


parts

� 61850 data communications with a heartbeat monitors function of entire path between processors

� Goal - Incorporate monitoring into engineering process so you get it with completed installation design

Part 90-4 - Network Engineering Guidelines

� 61850 communications are mapped to Ethernet

� Network/physical layers were black box – you make it work


– you make it work

� Now – comprehensive guidance on reliable network design

Part 90-4 - Network Engineering Guidelines

Layer 2 redundant network paths for protection messages

� Short-bump or bumpless rerouting for segment failures

� Rapid spanning tree protocol (RSTP) from IT

� 62439-3 Parallel Redundancy Protocol (PRP) – 2 LANs

� 62439-3 High availability Seamless Redundancy (HSR)singly attached nodes


DANH

CPU

DANH

CPU

DANH

CPU

DANH

CPU

DANH

CPU

DANH

CPU

DANH

CPU

DANH

CPU

DANH

CPU

DANH

CPU

DANH

CPU

DANH

CPU

destinations

source

„A“-frame

(HSR)„B“-frame

(HSR)

destinations

„C“-frame „D“-frame

DANH

CPU

DANH

CPU switch

RedBox

singly attached nodes

interlink

90-4 contents

•Substation topology and physical locations of IEDs

•Protection and control application

•Logical data flows and traffic patterns

•Latency requirements for different types of traffic

•Environmental issues•EMI immunity


different types of traffic•Redundancy and resiliency•Reliability, availability, maintainability

•Time synchronization and accuracy

•Network management •Configuration & addresses

•EMI immunity•Form factor•Physical media•Remote connectivity•Cyber security•Upgradeability•Testing•Cost

Precision timing in 90-4

We seek a precision time distribution protocol operating on the Ethernet network for:

� Sampling of V&I by merging units on process bus

� Synchrophasor timing

� All other time tagging

Without running separate timing signals among relays,


Without running separate timing signals among relays, IEDs, merging units – get rid of IRIG-B cables, sampling time fibers, etc.

� Use IEEE 1588 precision time protocol (PTP)

� Use IEEE C37.239 profile for protection applications

� Also to be used in 61869-9 for merging units

90-5 Synchrophasor Transport

� Split of Synchrophasor Standard – IEEE C37.118.1 on measurement and C37.118.2 on transport.

� WG 10 is defining a new transport mechanism for synchrophasors in wide area networks according to 61850 modeling and system engineering principles:

� Built on Sampled Values & GOOSE messaging


� Built on Sampled Values & GOOSE messaging models & mappings – fits SCL system engineering

� Presumes Ethernet network connections

� May utilize WAN or the Gateway approach as described in 90-1 for TDM or other non-Ethernet channels

� TC 95 and IEEE will make new IEC measurement standard based on C37.118.1

Features of 90-5 transport approach

� Sampled Value or GOOSE publish/subscribe across the WAN

� Add layer 3 transport – UDP/IP unicast or multicast (unconfirmed

continuing stream of data packets – not like TCP/IP)

� Conventional routers can identify packets and send to the

subscribing locations across the WAN

� Routers can even search for subscribers and establish routes

dynamically (good support for NASPInet!)


dynamically (good support for NASPInet!)

� New - a big deal – end-to-end authentication in the packet!

� SHA-2 authentication hash code - computed in real time.

� Industry standard Group Domain of Interpretation (GDOI)

security key distribution/management

� Implementation roadmap – router or gateway security now;

hash code handling in relays, IEDs, clients later

with new computing hardware.

New this week – interoperability testing!

� New industry program to move beyond conformance testing

� Connect multiple vendors’ products in a neutral environment and work out compatibility issues

� At EDF labs near Paris, week of March 28:

� Process bus – merging units and relays


� Process bus – merging units and relays

� Servers (e.g. relays) and clients (e.g. data concentrators)

� Ethernet performance results

� Network configurations and RSTP performance

What’s New in IEC 61850?More technical features

Testing Advantages of 61850

Alex ApostolovAlex Apostolov

OMICRON

Los Angeles, CA

IEC 61850 Edition 2: InRef


Page: 29

IEC 61850 Edition 2: LD Hierarchy


Page: 30

Ethernet Port LN LCCH


Value Mode1 on The application represented by the LN works.

All communication services work and get updated values2 on-blocked The application represented by the LN works.

No output data (digital by relays or analog setting) will be issued to the process. All communication services work and get updated values.Data objects will be transmitted with quality “operatorBlocked”. Control commands will be rejected.See note below the table

3 test The application represented by the LN works. All communication services work and get updated values.Data objects will be transmitted with quality “test”. Control commands with quality test will be accepted only by LNs in “test” or “test-

blocked” mode.

Values of Mode and Behavior


blocked” mode. “Processed as valid” means that the application should react in the manner what is foreseen for “test”.

4 test/blocked The application represented by the LN works.No output data (digital by relays or analog setting) will be issued to the process. All communication services work and get updated values.Data objects will be transmitted with quality “test”. Control commands with quality test will be accepted only by LNs in TEST or

TEST-Blocked mode.

5 off The application represented by the LN doesn’t work. No process output is possible. No control command should be acknowledged (negative response). Only the data object Mod and Beh should be accessible by the services.

Note: The Mod=”blocked” from edition 1 is changed in edition 2 to “on-blocked”.

Values of Mode and Behavior


GOOSE Testing

Communication processor Application Logic to

copy value

t

txSubscribed GOOSE messages

tc*


Physical device PD1

troundtrip

typublished GOOSE

tapplication

ta*

CIM Overview - Packages

Generation

Wires

LoadModel

Meas

Outage Protection

Financial

SCADA

Assets Documen-


Domain

Wires

Core

Topology

Financial

EnergyScheduling

Reservation

Core2

Assets Documen-tation

Consumer

OAGMessage

s

ERPSupport

Overlap with 61850

Objectives

Voltage

levelBay Device

CBR

ConNode

DIS

PTR

1

1 1

1 1

Substation1

1

Terminal

1

1

0..5

Subdevice

Phase

1


PTR

IED AccessPoint Server LDevice

LNode

Subnetwork

1..*1..2

1..* 1..*

1

1

1

Data1

1

1

1..*

1..*associations

0,1

0,1

Functional / substation structure

Product / IED structure

Communication structure

0..*

Router

COMTRADE for Synchrophasors

� PSRC H8 Application of COMTRADE for Synchrophasor Data Approved by IEEE PSRC Subcommittee H on May 13, 2010 as a PSRC Report PSRC H8 1

� Schema for Phasor Data Using the COMTRADE File Standard

� Report of the H8 Working Group of IEEE Power System


� Report of the H8 Working Group of IEEE Power System Relaying Committee

� Application of COMTRADE for Exchange of

Synchrophasor Data

Link between COMTRADE, IEC 61850 and CIM

� H17: Establishing Link between COMTRADE, IEC 61850 and CIM

� Goal is to link IEC 61850, CIM and COMTRADE in a way, that the COMTRADE channels can be associated to a node in the power network


IEC 61850

SCL

… in the power network

RADR1

RADR2

COMTRADE cfg File 1

Substation A

Channel 1

Channel 2

COMTRADE cfg File 2

Channel 1


CIM

IEC 61850 SCL

IEC 61850 SCL

RADR5

RADR4

RADR1

Channel 1

COMTRADE cfg File 3

Channel 1

Channel 2

IEC 61499 Function Blocks

� The basic unit for encapsulating and reusing Intellectual Property (IP="know-how") is the function block type.

� It is a class defining the behavior of (possibly) multiple instances.

� It includes event inputs and outputs as well as the more

traditional data inputs and outputs, to provide for


traditional data inputs and outputs, to provide for synchronization between data transfer and program execution in distributed systems.


Execution

Control

Chart


Algorithms

IEC 61131-3

IEC 61850 Benefits


Advantages of Process Bus

� Practical elimination of CT saturation because of the elimination of the current leads resistance.

� CT knee-point voltage is a function of the resistance of

the different components of the current circuit:

VK = f (RCT, RL, RRP)

�VK = Required CT knee-point voltage (volts)


�VK = Required CT knee-point voltage (volts)

�RCT = Resistance of CT secondary winding (ohms)

�RL = Resistance of a single lead from relay to CT

�RRP = Impedance of a relay phase current input


� An additional benefit of process bus based solutions is the improvements of the safety of the substation

� Elimination of one of the main safety related problems - an open current circuit condition. If this

occurs while the primary winding is energized, the


occurs while the primary winding is energized, the induced secondary e.m.f. under these circumstances can be high enough to present a danger to people’s life and equipment insulation


� Improves the flexibility of the protection system.

� Current circuits can not be easily switched due to open circuit concerns

� The above is not an issue with process bus, because any changes will only require modifications in the subscription of the protection IEDs receiving the


subscription of the protection IEDs receiving the sampled analog values over IEC 61850 9-2.

Utility

Standards

SAS Engineering Process


Functional

Specification

Questions?

[email protected]

[email protected]

[email protected]

+41 (41) 712 1984

+1 (310) 478-5967

+1 (412) 596-6959

Zug, Switzerland Los Angeles, CA Pittsburgh, PA - i-PCGRID Workshop … · 2016-01-20 · Zug,...

Documents

Transcript of Zug, Switzerland Los Angeles, CA Pittsburgh, PA - i-PCGRID Workshop … · 2016-01-20 · Zug,...