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Gene Henneberg, Chair Remedial Action Scheme Reliability Subcommittee

Gene Henneberg, Chair Remedial Action Scheme Reliability Subcommittee. RASRS Report to Operating Committee March 25-26 , 2014 Salt Lake City, Utah. RASRS Scheme Reviews (10 Entities, 24 schemes). RASRS Scheme Reviews. RASRS Scheme Reviews. RASRS Scheme Reviews. RASRS Scheme Reviews.

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Gene Henneberg, Chair Remedial Action Scheme Reliability Subcommittee

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  1. Gene Henneberg, ChairRemedial Action Scheme Reliability Subcommittee RASRS Report to Operating Committee March 25-26, 2014 Salt Lake City, Utah

  2. RASRS Scheme Reviews(10 Entities, 24 schemes)

  3. RASRS Scheme Reviews

  4. RASRS Scheme Reviews

  5. RASRS Scheme Reviews

  6. RASRS Scheme Reviews

  7. PRC-(012-014)-WECC-CRT-2 • The revised criterion requires owners to track and report periodic assessments of schemes. This is a follow up to the September 8, 2011 disturbance. • Effective date January 1, 2014

  8. WECC RAS Review Procedure • Revision to the RAS criterion also necessitates some minor revisions to the WECC Procedure to Submit a RAS for Assessment • Criterion Attachment B data • Periodic assessment review processexplanation • OC review/approval now!

  9. WECC RASRS Charter • Significant Charter changes include: • Removed a specific percentage of members present as a quorum requirement • Removed the Chair’s authorization to “approve” new RASRS members in favor of “accepting” nominations of new members from WECC member’s OC representatives • OC review/approval now!

  10. WECC RASRS Member Skills

  11. WECC RAS Database Good cooperation from WECC members for the annual database update in December • AESO “joined the party” with 39 schemes • A few other (mostly) thermal emulation schemes added • More removals than new schemes reviewed in 2013 • Presently 267 schemes in the database

  12. RAS & Protection System Oversight Task Force (RPSOTF) • Task Force provides oversight of PCC/TSS MSRATF activities • Co-chairs: Don Watkins, Dave Angell • Membership drawn from: • RAS Reliability Subcommittee • Relay Work Group • Technical Studies Subcommittee • WECC and RC Staff • Technical Support, Standards, and others

  13. Modeling SPS & Relays Adhoc Task Force • The MSRATF is organized under TSS (and PCC), Joe Seabrook, chair: • RAS modeling group • Relay modeling group • Contingency definition group

  14. Modeling SPS & Relays Adhoc Task Force “Big picture” objective is to develop and use contingency, relay, and RAS models as part of the Base Case Coordination System (BCCS), including models for unbalanced faults, accessed via a common data format from any of the four major software vendors’ programs.

  15. Modeling SPS & Relays Adhoc Task Force • Specifications for Power Flow and Stability models already approved by MVWG: • RAS models • Phase Relays: Overcurrent, Directional, Distance • Ground and OOS Relays: Future • Node-Breaker topology to be adopted

  16. Peak Reliability and RAS Peak Reliability (the RC) has been developing RAS models to include in their EMS models. RASRS is discussing database and collection coordination to minimize the number of separate data requests to WECC members and align both the RASRS data and the RC data to be collected.

  17. NERC SPS/RAS Standards • NERC has a new drafting team to write a new SPS definition and related standards. Among the ten members are four from WECC: • Gene Henneberg (NV Energy, Chair) • Amos Ang (SCE) • Davis Erwin (PG&E) • Hari Singh (Excel)

  18. NERC SPS/RAS Standards There will be lots of chances for industry comment, but . . . Please provide any informal feedback to the drafting team, especially on the SPS/RAS definition, sooner rather than later.

  19. NERC SPS/RAS Definition • Example SPS Exclusion: Schemes to protect against SSR, which might include: • Local SSR filters • Torsional Stress Relay • Critical contingency element monitoring and mitigation

  20. Next RASRS Meeting April 7-9, 2014, Salt Lake City, UT (two weeks away!) • Review schemes from members • Other RASRS business

  21. Remedial Action Scheme Reliability Subcommittee March 2014 Questions?

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