Presentation on theme: "WECC Reliability Based Control Field Trial"— Presentation transcript:
1 WECC Reliability Based Control Field Trial NERC Draft StandardsBAL-007 – BAL-011
2 OverviewBackgroundPWG/SDT role/responsibilities, Scope, and Time FrameBA role/responsibilitiesRC role/responsibilitiesIssuesQuestions
3 Background Draft BAL-007 – BAL-011 RBC – Frequency based ACE Limit EI Field Trial underway for 2-3 years14 BAs with 60% of load“No” modifications to BA EMS’Waiver of CPS2 compliance requirementDraft under review/revision with new posting in next couple of months
4 WECC FT – Control,Scope,Time Administered by PWG with assistance from SDTAll data will be collected, analyzed by PWG or WECC Staff, and forwarded to SDTPWG will establish WECC interconnection specific data collection requirementsPWG will establish participation requirements, SDT will maintain list of participating BAsPWG/SDT will review regularly review data and, if necessary, will consult with BAs on withdrawal from FTPWG will survey BAs regarding readiness for FTWECC FT will last 1 calendar year, after which performance per the Standard will be reviewed
5 BA execution of RBC in WECC FT All BAs with Peak Load or Max Gen > 500 MW must participateAll BAs must be able to meet the data collection reporting requirementsWhile CPS2 is waived, it must still be calculatedBAL-007 – a frequency based ACEclock-min limit (BAAL) with a 30 min time limitNo EMS modifications are required and BAs may “loosen” control BUTBAs must still continue to calculate and report all required quantities.
6 BA execution of RBC – cont’d BAs must provide explanation and examples of interfaces Operators will use for RBC complianceBAs can self-implement the BAAL calculation and monitoring of ACE or use tools provided by the SDTThe SDT tools are for monitoring only and reference the ACE history (e.g. a PI database)
7 RC participation in WECC RBC FT RC has authority to direct participating BAs to take corrective action if the RC observes problems it believes may be attributed to the BA operation under the FT.RC, PWG, SDT will conference call to assess such situations.The WECC FT document details specific RC actions for different limit violations
8 Issues and Concerns There is no CPS2 (L10) limit PWG proposes an ACE “cap” of 2*L10 beyond which BAs will be expected to reduce ACE within the cap after some duration.Should the FT run concurrent with other major control changes?It’s not clear if a BA is allowed to continue to control for ACE, in any manner, while ACE is within the BAAL. Discussion is continuing.PWG understands that anonymity of the BA to the SDT is required as CPS data is involved.The resources to collect and analyze FT data is more than PWG can provide. PWG recommends a WECC staff resource
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