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BCCS Implementation Details

BCCS Implementation Details. SRWG Chair Presentation TSS Meeting August 24, 2011 Bellevue, Washington. Base Case Coordination System - Basic Structure. System Data in various formats. Time-stamped project definitions. Future facilities Generator Data Short Circuit data Load Forecasts.

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BCCS Implementation Details

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  1. BCCS Implementation Details SRWG Chair Presentation TSS Meeting August 24, 2011 Bellevue, Washington

  2. Base Case Coordination System - Basic Structure System Data in various formats Time-stamped project definitions • Future facilities • Generator Data • Short Circuit data • Load Forecasts BCCS Database • Database Contents: • 10-years (or more) • 4 seasons • Heavy and Light • Committed Projects • Proposed Projects • Future Generators • Capabilities: • Data entry • Case change • Solution engine • Audit & Check • Notifications • Confidentiality • Case Creation: • Select year/season • Select Loading • Select scenario • Solve and validate • Posted WECC Cases • User-specified Cases

  3. Base Case Creation Process BCCS Database • Case description • Year/season • Loading scenario • AS-OF date • Rating table • Device status table • Path Definitions • Project files • Load & Resource Tables • Load scenario • Generation • Save/recall info User Selection • Following user selections and settings • Retrieve specified data into BCCS system topology • Apply time-stamped project definitions • Save result with the BCCS database • Optionally, output standard-format flat file base case data Assemble Base Case Solve and validate • Post WECC Cases • User-specified Cases

  4. Case Building Process

  5. Project Model Effective date

  6. Project File Created Manually Project file

  7. Project File from Case Comparison Case One Compare Cases Project file Case Two

  8. Data requirements • User responsibilities • Load forecasts [power factor, MW/MVAr] • Probability level [SRWG prefers 1-in-2] • Monthly or seasonal ; On-peak / Off-peak • Coincidental load forecasts are intended • Build monthly gen & load matrix • Submit data annually • Profiles for designated seasons and years

  9. Data requirements • Define areas for scenarios • Pre-Determine busload and generation • MRO develops company workbooks first • WECC may be able to do this within BCCS • Project files Effective dates monthly • Determine what WECC requires (Nov11 agenda) • ACs are to ensure that case updates for their area do not affect case solubility • We could consider using an alternative base case

  10. Special features needed for robust model solutions • extended models • generator groups, reactive groups, branch groups • specialized features • distributed slack • coordinated voltage and VAr control • MBC within BCCS must be solved • Voltage profiles • for seasonal starting points • By each area • Consider differences between solution engines in BCCS solution development • TT will set agenda for a teleconference on Solution Capability

  11. Needed for “Transmission Planning” • Case series (next slide) • Data maintainability, security, audit trail • Version control • Isolate specified area • More?

  12. Determine WECC Case Series SRWG assignment: • Look at MRO descriptions (MRO series shown above) • Submit proposals for case series requirements • Discuss at November SRWG meeting

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