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© ERLPhase Power Technologies Ltd. All Rights Reserved.© ERLPhase Power Technologies Ltd. All Rights Reserved.
An Insight into IEC 61850 ProtocolImplementation with ERLPhase new generation
DevicesIEEE Winnipeg
January 25, 2011
Dr. Krish Narendra, PhDVP Technology and Quality
Outline
• ERLPhase – History, Products, New Generation Devices• IEC 61850 – Development History• IEC 61850 Standard Parts• IEC 61850 Substation Communication Architecture• IEC 61850 Data Modeling Architecture• L-PRO (Line Protection) Relay logical nodes and its
implementation• Communication Architecture–Message flow• Engineering Process with IEC61850 Tools and GOOSE
message examples (8-1)• TESLA Recorder and IEC 61850 GOOSE• Phasor Measurement Unit Data over 61850• ERLPhase Merging Unit – Process Bus (9-2)• Conclusions
ERLPhase - History
• ERLPhase was formed in 2007 as the next generation ofAPT Power Technologies and the Relay/Recorder divisionof NxtPhase T&D Corp.
• ERLPhase is a subsidiary of Easun Reyrolle Ltd of India,an expanding international company. A major in the fieldof power management, encompassing protection, control,automation, metering and switchgear.
ERLPhase - History
• R&D, engineering, production and customer support basein Winnipeg, Canada.
• Center of Excellence for the transmission level graderelay and recorder products.
• Direct sales responsibility into the America’s plus supportthe international marketing group for rest of the world.
• Application engineers and sales managers throughoutUSA, Canada and Latin America.
ERLPhase – Products
IEC 61850 Compliant new generation devices
IEC 61850 – Development History
1994
• Utility Communication Architecture (UCA)• EPRI, IEEE – lead team
• Utility Communication Architecture (UCA)• EPRI, IEEE – lead team
1996
• IEC 61850• IEC TC 57
• IEC 61850• IEC TC 57
1997-curent
• IEC 61850• Merged with UCA 2.0• Various Updates – on going activity
• IEC 61850• Merged with UCA 2.0• Various Updates – on going activity
DNP3, LON, ICCP, Modbus – exiting protocols – does not fullyaddress todays Utility Needs
DNP3, LON, ICCP, Modbus – exiting protocols – does not fullyaddress todays Utility Needs
IEC 61850 Standard Parts
IEC 61850 SubstationCommunication Architecture
PROCESS BUS (9-2 )0.1/1 GbpsPROCESS BUS (9-2 )0.1/1 Gbps
Merging UnitMerging Unit
Digital DataDigital DataAnalog SignalAnalog Signal
STATION BUS (8-1) 10/100/1000MbpsSTATION BUS (8-1) 10/100/1000Mbps
Remote GatewayRemote Gateway
InternetInternet
Energy Management System(EMS center)
Energy Management System(EMS center)
Other remote usersOther remote users
Station legacy CTs/PTsStation legacy CTs/PTs
IED with no processbus support
IED with no processbus support
GPSGPS
IEC 61850 Data Modeling Architecture
Physicaldevice(PD)
LogicalDevices
(LD)
LogicalNodes (LN)s
LNsattributes
RTOS processorRTOS processor
Implemented onRTOS processorImplemented onRTOS processor
Brief Details of the L-PRO logical nodes
Implementation of IEC 61850with Line Protection Relay – L-PRO 4000
Measurement
•MMXU1
Protection
•PDIS1
•RSYN1
•RREC1
•PTOV1
•PTUV1
•PTOF1
•PTUF1
•PFRC1
•PIOC1
•RBRF1
Records
•RDRE
System
•GGIO1•GGIO2•GGIO3•GGIO4•GGIO5
Virtual Elements
•GGIO1•GGIO2•GIO3
LOGICAL DEVICSES USEDLOGICAL DEVICSES USED7-47-4
MORE DETAILS ARE AVAILABLE INMODEL IMPLEMENTATIONCONFORMANCE STATEMENT (MICS)
MORE DETAILS ARE AVAILABLE INMODEL IMPLEMENTATIONCONFORMANCE STATEMENT (MICS)
Example of 21 Distance ProtectionLogical Node - PDIS for pickup and trip
L-PRO_1 ----------Physical device– PDIS1--------------Distance protection logical node (7-4)
• …– ST---------- Functional Constraint (Status Information)
» str--- Data
• General---attribute (pickup)
L-PRO_1 ----------Physical device– PDIS1--------------Distance protection logical node (7-4)
• …– ST---------- Functional Constraint (Status Information)
» Op--- Data
• General---attribute (trip)
PICKUPPICKUP
TRIPTRIP
Real Time Operating System(RTOS)
Real Time Operating System(RTOS)
Communication Architecture–Message flow
Mapping (MMS)IEC 61850 -7-2,7-3,7-4, 8-1,9-2
Mapping (MMS)IEC 61850 -7-2,7-3,7-4, 8-1,9-2
DSPProcessor
DSPProcessor
GOOSEGeneric Object Oriented
Substaion EventTime Critical
GOOSEGeneric Object Oriented
Substaion EventTime Critical
SVSampled Value
Time Critical
SVSampled Value
Time Critical
TIMEMessage
(UTC)
TIMEMessage
(UTC)
IRIG
IRIG
15881588
Non – time criticalMessage path
Non – time criticalMessage path
EthernetEthernet
Publisher and Subscriber architecture forGOOSE with ERLPhase Devices
PUBLISHERL-PRO
PUBLISHERL-PRO
PUBLISHERT-PRO
PUBLISHERT-PRO
SUBSCRIBERB-PRO
SUBSCRIBERB-PRO
SUBSCRIBERTESLA
SUBSCRIBERTESLA
STATION BUS (8-1)STATION BUS (8-1)
MICS >Model InformationConformance Statement
PICS>Protocol InformationConformance Statement
PIXIT>Protocol Implementation ExtraInformation for Testing
TICS> Tissue (test issues)Conformance Statement
MICS >Model InformationConformance Statement
PICS>Protocol InformationConformance Statement
PIXIT>Protocol Implementation ExtraInformation for Testing
TICS> Tissue (test issues)Conformance Statement
GOOSEGOOSE
Engineering Process with IEC61850 Tools
• Substation Configuration Language (SCL)- XML Based
– ICD -> IED Capability Description file
– CID -> Configuration IED Description file
– SCD-> Substation Configuration Description file
– SSD ->Substation Specification Description file
Engineering Process with IEC61850 Tools…
SystemConfiguration
Tool
SystemConfiguration
Tool
DATABASEDATABASE
CID fileCID file CID fileCID file
ICD filesICD files
SCD filesSCD files
GOOSE (8-1) / SV (9-2) - explanation
• GOOSE and SV messages are time critical messagesand hence there will NOT be any acknowledgements
• Message flows directly from data link layer to RTOSinterface
• GOOSE and SV (9-2) are multicast messages
• GOOSE messages STARTS first time when the dataattribute or status changes of any logical node defined bythe data set.
GOOSE Example…
• GOOSE never waits for any acknowledgement from thesubscriber, but retransmits itself with a minimum timeinterval – in ERLPhase relays it is 10 mS, 20mS,40mS….12 sec maximum time.
Data changedetected andtransmission
starts
Data changedetected andtransmission
starts
Firstretransmission
after 10 mS
Firstretransmission
after 10 mSTmax = 12 secTmax = 12 sec
Tmin= 1 mSTmin= 1 mS
GOOSE Example….
• How does the subscriber knows of the retransmission andthe new event?– GOOSE message has a STATE number and a SEQUENCE
number for distinguishing between a new event andretransmitted message
– For example, if 600 is the STATE number for new eventand first SEQUENCE will be set to 0
– STATE number remains 600 (if there is no new event) andSEQUENCE will be updated to 1 after first retransmission.
– STATE number changes 601 (new event) and SEQUENCEstarts at 0 and the old message will become obsolete
•GOOSE TriggerVendor 2
Switch 1
Substation LAN(fiber optic)
•GOOSE TriggerVendor 1
Switch 2
Switch 3
TESLA Recorder and IEC 61850 GOOSE
Substation LAN -Station Bus
TESLA Recorder and IEC 61850 GOOSE….
System WAN
IEC 61850 - 90-1Communication between
substations
IEC 61850 - 90-1Communication between
substations
Phasor Measurement Unit Data over 61850
• IEC TR 90-5 is working on Synchrophasor transport over61850 communications with following schedule
• PMU Modeling -> Using MMXU and MSQI LNs• PMU Communication-> Using GOOSE- USV (sampled
value mapped to UDP)
ERLPhase Merging Unit – Process Bus (9-2)
Protection: 80 s/cRecording :320 s/cProtection: 80 s/cRecording :320 s/c
Conclusions
• ERLPhase new generation products are ready for the future IEC 61850based digital substation protection – Station Bus (8-1)
• Merging Unit (SV ) based on process bus (9-2) has been planned for theyear 2012
• IEC 618650 -TC 57- Working Group is continuously working on improvingthe standard to realize the SmartGrid concepts
IEC 61850 - an Interpretation…..
IEC 61850IEC 61850
ElectricalUtilities
ElectricalUtilities
VendorsVendors
© ERLPhase Power Technologies Ltd. All Rights Reserved.© ERLPhase Power Technologies Ltd. All Rights Reserved.
Questions?
Dr. Krish Narendra, PhDVP Technology and [email protected]
204-477-0591 x230