Abstract
Simple performance indices for detecting and predicting stability problems such as the voltage collapse are useful analysis tools for planning and operating engineers in power utilities. We propose a fast guided continuation method to predict or compute a reliable performance index that takes proper care of limits of reactive power resources. The main feature is the novel combination of a Q limits index and a performance index to achieve computational efficiency and index reliability. Numerical experiments using standard IEEE 9-, 14-, 30-, 57-, 118-, 300-bus systems and a NGC 40-bus system show that the proposed method can predict or compute the voltage collapse point much faster than the standard continuation.
Original language | English |
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Pages (from-to) | 753-760 |
Number of pages | 8 |
Journal | IEEE Transactions on Power Systems |
Volume | 18 |
Issue number | 2 |
DOIs | |
Publication status | Published - May 2003 |
Keywords
- Continuation method
- Performance indices
- Power flow equations
- Q limit index
- Reactive power limits
- Saddle-node bifurcation
- Voltage collapse
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering