TO IDENTIFY WEAKEST BUS IN A SYSTEM FOR IMPROVING VOLTAGE STABILITY USING VOLTAGE RATIO PROXIMITY INDICATOR

Abstract

This paper is concerned with the problem of voltage stability. The paper analyses the usefulness of voltage ratio proximity indicator to identify weakest bus in a system for improving voltage stability. The results are carried out over a wide range of load. Test results for the IEEE 14 bus 20 line System are presented. Result obtained from this technique shows that suggested indicator can provide useful point and it is reliable and capable to identify weakest voltage stability. To analyses the effect of facts device voltage stability shunt capacitor is connected to weakest result will be obtained for it.