Composite system reliability evaluation based on static voltage stability limit

摘要

This paper describes methodology for evaluating the reliability of a composite system based on peak load consideration which takes into account steady state voltage stability limit also. Voltage stability limit is obtained for the probable outage of transmission lines and removal of generating equipment along with the combined state probabilities. The LOLP index is evaluated by merging the capacity probability list with load model. State space is truncated by assuming the limits on total number of outages. A predictor corrector technique has been used along with one dimensional search method to get optimized stability limit for each outage states. The algorithm has been implemented on a six-bus test system.