Hybridエネルギー関数法を用いた過渡安定限界発電出力の推定法

抄録

It is well known that Transient Energy Function (TEF) method is useful for the efficient transient stability assessment represented by the estimation of critical clearing time (CCT). However, there still remains an issue for the practical use that most of the TEF methods adopt the classical model of a synchronous machine where an internal generated voltage is assumed to be constant. Besides, critical generated output can be more practical stability index instead of CCT used in the conventional TEF methods. In this paper, a conventional hybrid TEF method is developed for the estimation of the transient stable critical generated power by application of improved hybrid simulation. The proposed method can deal with the detailed model for the synchronous machine, and estimate the critical generated power with higher accuracy. Demonstrative result is presented for large network model in order to verify the practicability of the proposed method.