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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 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 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
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
Project Model Effective date
Project File Created Manually Project file
Project File from Case Comparison Case One Compare Cases Project file Case Two
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
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
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
Needed for “Transmission Planning” • Case series (next slide) • Data maintainability, security, audit trail • Version control • Isolate specified area • More?
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