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Getting Planning Tools Closer To Real-Time and Operation

Getting Planning Tools Closer To Real-Time and Operation. CIM User Group Meeting Austin, TX October 23-26, 2007 Loris Arnold (516) 545-3661. Who Is LIPA?. State utility located on Long Island New York Long Island Power Authority owns T&D

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Getting Planning Tools Closer To Real-Time and Operation

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  1. Getting Planning Tools Closer To Real-Time and Operation CIM User Group MeetingAustin, TX October 23-26, 2007 Loris Arnold (516) 545-3661

  2. Who Is LIPA? • State utility located on Long Island New York • Long Island Power Authority owns T&D • National Grid (former KEYSPAN) owns the power plants and manage T&D for LIPA

  3. Overview of the LIPA T&D System

  4. Company Overview Customers1,103,162 Population: ~3 M (est. 2005) Peak Demand:5,792 MW (Aug. 2006) Seven Ties: 2 DC, 5 AC

  5. Company Overview Facilities Substations 177 Distribution Circuits 848 Overhead ~75%, Underground ~25% Distribution Automation >1200 switches System Voltages Transmission 345kV, 138kV, 69kV Sub-Transmission 34.5kV, 23kV Primary Distribution 13.8kV or 4.3 kV Secondary Distribution 120/208, 120/240, 277/480 Generation KEYSPAN Generation…………….5461 MW Total Available Generation……….5656 MW Seven Interties…………………….2062 MW Standard Area Substation Design 2-4 bank, design 28, 33, 56 MVA transformers Southampton Substation Canal Substation, 2005

  6. Getting Planning Closer to Real-Time and Operation

  7. Initial Project • Track network changes to recreate historical model • Build CIM model from GE Harris EMS • Retrieve Measurement Data from PI Historian • Run PSS/O to support Operations with real-time load flow analyses • Create PSS/E load flow models for Electric Planning • Establish access to asset condition data via CIM Integration Bus PI Historian (at time T1) PSS™ODMSE & LDFW (for time T1) PSS/E Equivalent Case (for time T1) CIM Model (at time T1)

  8. PSS/E Power Models EMS PSS/ODMS CIM/ODMS Measurement Data Power Models IB ICCP Power Models Equipment Models Measurement Data Power Models Measurement Data PI CIM PI Adapter Maximo CIM AM Virtual Data Warehouse Archive TOTS CIM ... MMW Others Analysis Applications Initial Architecture Utility Integration Bus

  9. Expanded requirements: Real Time System Stability is what System Operations Wanted • Currently the System Operator has a very good handle of thermal constraints, however he has less of an understanding of System Stability during off peak maintenance work • Requirement to Perform System Stability during N-1 and N-2 contingencies • Request for easy interpretation of stability analysis Extended requirements: • Support ESO with Stability runs: • Real time Voltage Stability runs using the PSS/O output (RAW file) • Day ahead Stability runs using the PSS/O output (RAW file) • System Stability assessment and support ESO clearance during major construction projects • Extend the CIM to include Stability Data: • Include Stability Data which will allow CIM compliant application to run Stability without using external machine data files • Model On Demand: • Enable use the current system configuration as base to maintain future planning system configurations • Use the historical data to evaluate: • Event reconstruction • Load forecasting • Loss studies and system optimization to reduce real and reactive losses

  10. Example of real-time substation modeling, includes distribution transformers to capture losses

  11. CONTOURS DEMO

  12. System Planning Vision of CIM IB Real-Time Operation Optimization (OPF) Model Updates (Current, Future, Historical) Probabilistic DISTRIBUTION Reliability Model Probabilistic Risk Assessment for Transmission (PRA) Real Time Stability (QuickStab) Substation Reliability (SUBREL) Physical Operating Margins POM (Real time) (CYMEDIST) CIM Integration Bus (UIB) Desktop PI/EMS ASU DATA (Distr. Autom. Real Time) Assets Condition and Reliability Data EGIS Virtual Data Warehouses

  13. One View of Real Time Stability Presentation BASE CASE Steady State Stability Representation Used to Asses System Stability WORST CONTINGENCY Stability Representation from Selected Contingency List 15% Instability Margin System Unstable

  14. Linear Representation of East End Load Pocket Stability

  15. Bar Chart Ranking of components based on their impact on stability

  16. Some of Future Applications • Load Flow Optimization for Operators: • Perform Operation Optimization (OPF) in real time • Expected better management of loading/overloads and system losses • Load Forecasting for Operation: • Short-term load forecast • Hours and minutes in the future • One and two days in the future • Feeders, Circuits, Transformers • Real time Boundaries of Operation: • Use POM software (Physical and Operational Margins) for real time evaluation and visualization of margins and boundary of operation • Voltage Profile on demand: • On selected distribution circuits • Near-real-time data and system models, on-demand calculation • Asset condition/reliability impact on system modeling and analysis • Real-time updates for system models • Integration of Distribution, Sub transmission, and Transmission Models • Probabilistic Assessment studies for T and D • Transmission System: use EPRI PRA software • Distribution System: use CymeDist with additional Reliability Module and enhancements for probabilistic analysis • Exchange of Load Flows with neighboring utilities (XML File)

  17. Questions and Answers ?

  18. Naming Conventions and Definitions • CIM – Common Information Model • PSS/E = Power System Simulator for Engineering (Version 29+) • PSS/O = Power System Simulator for Operations (Version 7+) • ECI = EPRI CIM Installer (a base set of ODMS functionality) • EMS = Energy Management System • PI = XA/21 EMS Real Time Data Repository • PNA = Power Network Analysis • PSM = Power System Model • MMW = Maintenance Management Workstation • XA/21 = General Electric Network Solution EMS System. • UIB = Utility Integration Bus • GDA = General Data Access • TSDA = Time-Series Data Access • HSDA = High-Speed Data Access • GID = Generic Interface Definition • GES = Generic Event Sequencer • ESO = Electric System Operations • LIPA = Long Island Power Authority • DPE = Distribution Performance Engineering • EP&F = Electric Planning and Forecasting • VDW = Virtual Data Warehouse • ODBC = Open Data Base Connectivity • XML = Extensible Markup Language • PRA = Physical Reliability Assessment • PRI = Physical Reliability Index • POM = Physical and Operational Margins • V&R Energy = EPRI Contractor which develop POM • EGIS = Electric Geographical Information System • CYMEDIST = Distribution Analysis Software • ASU = Automatic Sectionalizing Unit • SUBREL = Substation Reliability

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