Design and implementation of Real-Time Voltage Stability Analysis at CAISO

Author

Varghese, Matthew ; Salem-Natarajan, Dinesh ; Ghosh, Soumen ; Chiang, Hsiao-Dong ; Li, Hua

Author_Institution

California ISO, Folsom, CA

fYear

2008

fDate

20-24 July 2008

Firstpage

1

Lastpage

7

Abstract

The real-time voltage stability analysis (RTVSA) project is slated to be a part of the suite of computational tools needed for congestion management in the California ISO (CAISO). This is because the problems of voltage stability will be magnified by the effects of multi-transfers through the network. These simultaneous transfers are manifest due to the buying and selling of electric power when the point of production and the point of delivery may be in geographically distant locations in the CAISO control area. The voltage analysis methods described here include the development of advanced functions such as the exact calculation of point of collapse (PoC) using continuation power flow, the identification of weak elements, the automatic selection of remedial actions and the development of operating nomograms. The RTVSA tool will be integrated with EMS and use results from the state estimator. The RTVSA application is scheduled to go online in the 3rd quarter of 2008.

Keywords

energy management systems; power system management; power system stability; power system state estimation; CAISO; California ISO; EMS; Energy Management System; RTVSA tool; congestion management; continuation power flow; electric power; point of collapse; real-time voltage stability analysis; state estimator; Computer integrated manufacturing; ISO; Load flow; Medical services; Predictive models; Real time systems; Stability analysis; State estimation; Voltage; XML; Automated Load Forecast System (ALFS); California Mexico Reliability Coordinator (CMRC); Common Information Model (CIM); Energy Management Systems (EMS); Look Ahead (LA); Real-Time Voltage Stability Analysis (RTVSA); Remedial Action Scheme (RAS); State Estimator (SE); Western Electricity Coordinating Council (WECC); eXtensible Markup Language (XML);

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE

Conference_Location

Pittsburgh, PA

ISSN

1932-5517

Print_ISBN

978-1-4244-1905-0

Electronic_ISBN

1932-5517

Type

conf

DOI

10.1109/PES.2008.4596067

Filename

4596067