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

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

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  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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

  18. 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

  19. 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

  20. 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

  21. 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

  22. 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

  23. 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

  24. 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

  25. 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

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