PRACTICAL METHOD FOR THE DIRECT ANALYSIS OF TRANSIENT STABILITY

This paper describes the development and evaluation of an analytical method for the direct determination of transient stability. The method developed is based on the analysis of transient energy and accounts for the nature of the system disturbance as well as for the effects of transfer conductances on system behavior. It has been evaluated on a 10 generator 39 bus system and on a 20 generator 118 bus system. The method predicts critical clearing times for first swing transient stability which agree very closely with the results of simulations. The main conclusion of the study is that the basic approach developed is practical, sufficiently accurate and could be applied to realistic problems in power system planning and operation. Copyright © 1979 by the Institute of Electrical and Electronics Engineers, Inc.