ON THE EVALUATION OF VOLTAGE COLLAPSE CRITERIA

Analyses of the voltage collapse phenomena have been approached in many ways as seen by the many terms associated with voltage collapse. This paper provides an approach which will enable a power system operator or planner to evaluate his alternatives in selecting a certain voltage collapse criterion. Specifically, the selection of a criterion must guarantee that the risk of making a wrong decision is minimal for any operating point and disturbance. This is done by recasting the various voltage collapse criteria in terms of a decision framework. Some examples are given to illustrate the effectiveness of the proposed approach. © 1990 IEEE