1 / 25

Software Analysis Tools

Northeast Asian Power Grid Interconnection Shenzhen,May 7, 2002. Software Analysis Tools. Felix Wu University of Hong Kong. Software Tools: Functions. Planning tools Cost / benefit analysis of alternative plans Financial risk assessment

desma
Télécharger la présentation

Software Analysis Tools

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Northeast Asian Power Grid Interconnection Shenzhen,May 7, 2002 Software Analysis Tools Felix Wu University of Hong Kong

  2. Software Tools: Functions • Planning tools • Cost / benefit analysis of alternative plans • Financial risk assessment • Feasibility of plans: identify potential operating disasters • Operating tools • Engineering design • Operational procedure • Data requirement • Interactions of the tools

  3. Investment decisions Schematic update Interactions of Software Tools Planning tools: • Benefits - Economy - Environment • Investments • Risk Operation tools: • Performance analysis -Stability • Control system design

  4. Investment Decision Support • Investment costs • Fixed cost • Operating costs • Calculating capital costs • Assumptions • Accounting practice • Estimating operating costs • How the system operates • Plant availability • Merit order loading (Unit commitment and economic dispatch) • Production costing simulation

  5. Load Forecast load-A. Generation Existing generation A Export to B Merit order Load Forecast load-B Generation Existing generation B Import from the interconnection. Merit order Production Simulation • Simulate power system operation • To calculate production cost • From each generator and for the whole system • Energy, fuel, pollution, etc.

  6. Production Costing Simulation Load (GW) Annual Load Curve (Week)

  7. Production Costing Simulation Load (GW) Annual Load Curve

  8. Probabilistic Production Costing • Taking into account of uncertainties in generator scheduling, forced outages, hydro availability, etc. • Multi-year breaking down to a series of monthly or weekly simulations • Output provides information of • Fuel usage and cost • Pollution generated • Reliability level (Loss of load probability) • System marginal cost • Can be used to assess benefits (economical and environmental) of interconnection. • Data requirements

  9. Data • Input data • Load demand (peak load growth and load shape) • Generator capacity, availability, fuel type, heat rate, start-up/ shutdown cost, pollution generation • Fuel cost • Output data • System reliability • System and individual generator operating cost (fuel, O&M), emission….. • Main tool in generation planning

  10. Multi-area Production Costing • Two approaches • Simultaneous simulation • External input • External input • Determine transfer capability between areas • Rated and actual • Transmission planning tool • Estimate transfer schedule • Model import as generator and export as load in production costing • Deterministic or probabilistic modeling

  11. Generation Planning • Requirement for generation addition • Reliability (Loss of load probability) • What, where, when and how much to add • Scenario study • Optimization approach • Production costing

  12. Commercial Software Packages • PROSYM • UPLAN • EGEAS

  13. PROSYM • Developed by Henwood Energy Services. • More than 80% of utilities in the North American use it. • Scenario modeling • Stand-alone production costing or comprehensive optimal generation planning. • Detailed representation of performance, cost and constraint characteristics of physical and financial resources

  14. UPLAN • Developed by LCG Consulting • Advanced algorithms to simplify computations • PC based • Multi-area capability

  15. EGEAS • Developed by Stone and Webster for EPRI (USA). • Advanced optimization techniques • Detailed production costing

  16. Transmission Planning • Siting • Route selection • Capacity • Costing • Scenario generation • Performance analysis • Fixed configurations (snap shot) • Power flows, optimal power flows, stability

  17. Data Requirements • Input data • Transmission network • Configuration • Parameters • Generation • configuration • Cost • Load • Output data • Power flow pattern • Constraint violations

  18. Software Packages • PSAPAC (EPRI, USA) • DSA Power Tools (PowerTech Labs, Canada) • PSS/E (Power Technologies, Inc. USA) • EuroStage (EDF) • Netomac (Siemans) • Power System Toolbox (Cherry Tree)

  19. PSAPAC • Comprehensive modeling • Advanced algorithms • Accurate and reliable performance • Extensive data requirement • Elaborate output

  20. Major Components of PSAPAC • INFLOW: Interactive power flow analysis • ETMSP: Extended transient and mid-term stability program • SSSP: Small signal stability program • VSTAB: Voltage stability analysis • DYREN: Dynamic reduction program

  21. Power System Toolbox • Characteristics • A set of coordinated Matlab files • Source code availability • Capability • Designed for small to medium sized system (800 nodes, 200 generators) • Functions • Load flow • Transient stability • Small signal stability

  22. Planning Operation Calibration of Tools UPLAN PST PROSYM PSAPAC More detailed modeling More data

  23. Conclusion • For the Northeast Asian Power Interconnection Study, the following factors should be considered in the selection of software tools • Achievement of objectives • Minimum data requirement • Commonly used • Transparent • Ease of use

  24. Conclusion • For a preliminary study, we recommend that • For a particular analysis, a software is selected as the defacto standard • The interface between countries are specified according to the data requirement of that software • Each member country can use the standard software or their own software for their part of the analysis • The results are shared with the group • Nautilus conducts an overall study and also provides assistance to each member country.

  25. Conclusion • We recommend that UPLAN and Matlab/PST be used initially for the preliminary study. More sophisticated tools may be used for future engineering analysis.

More Related