getting planning tools closer to real-time and operation
DESCRIPTION
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 - PowerPoint PPT PresentationTRANSCRIPT
www.lipower.org
Getting Planning Tools Closer To Real-Time and Operation
CIM User Group MeetingAustin, TX October 23-26, 2007
Loris Arnold (516) 545-3661
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Privileged and ConfidentialSeptember 27, 2006
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
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Privileged and ConfidentialSeptember 27, 2006
Company Overview
Customers 1,103,162Population: ~3 M (est. 2005)
Peak Demand: 5,792 MW (Aug. 2006)
Seven Ties: 2 DC, 5 AC
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Privileged and ConfidentialSeptember 27, 2006
Company Overview
FacilitiesSubstations 177Distribution Circuits 848Overhead ~75%, Underground ~25%Distribution Automation >1200 switches
System Voltages Transmission 345kV, 138kV, 69kVSub-Transmission 34.5kV, 23kVPrimary Distribution 13.8kV or 4.3 kVSecondary Distribution 120/208, 120/240, 277/480
GenerationKEYSPAN Generation…………….5461 MWTotal Available Generation……….5656 MWSeven Interties…………………….2062 MW
Standard Area Substation Design2-4 bank, design28, 33, 56 MVA transformers
Southampton Substation
Canal Substation, 2005
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Privileged and ConfidentialSeptember 27, 2006
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
PSS™ODMSE & LDFW(for time T1)
PSS/E Equivalent
Case (for time T1)
CIM Model
(at time T1)
PI Historian(at time T1)
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Privileged and ConfidentialSeptember 27, 2006
Initial Architecture
EMS
ICCP
CIM/ODMSPowerModels
IBIBIBIB
PSS/ODMS
PSS/E
CIM
PowerModels
CIM PIAdapter Archive
PI
PowerModels
MeasurementData
MeasurementData
EquipmentModels
CIMAM Virtual Data
Warehouse
AnalysisApplications
PowerModels
MMW
Maximo
TOTS
Others
.
.
.
MeasurementData
Utility Integration Bus
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Privileged and ConfidentialSeptember 27, 2006
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
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Privileged and ConfidentialSeptember 27, 2006
Example of real-time substation modeling, includes distribution transformers to capture losses
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Privileged and ConfidentialSeptember 27, 2006
System Planning Vision of CIM IB
Integration Bus (UIB)
Real-Time Operation
Optimization
(OPF)
Real-Time Operation
Optimization
(OPF)
Model Updates
(Current, Future, Historical)
Model Updates
(Current, Future, Historical)
Real TimeStability
(QuickStab)
Physical Operating Margins
POM (Real time)
Virtual Data Warehouses
Desktop
CIM
ASU DATA(Distr. Autom.
Real Time)
(CYMEDIST)
PI/EMSPI/EMS EGIS
ProbabilisticDISTRIBUTION
ReliabilityModel
SubstationReliability(SUBREL)
Assets Condition and Reliability Data
Probabilistic Risk Assessment for
Transmission
(PRA)
Probabilistic Risk Assessment for
Transmission
(PRA)
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Privileged and ConfidentialSeptember 27, 2006
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
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Privileged and ConfidentialSeptember 27, 2006
Linear Representation of East End Load Pocket Stability
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Privileged and ConfidentialSeptember 27, 2006
Bar Chart Ranking of components based on their impact on stability
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Privileged and ConfidentialSeptember 27, 2006
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)
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Privileged and ConfidentialSeptember 27, 2006
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