Abstract

In this paper, the state of the arts of power systems in China and some applications in transient stability control based on wide area measurement system (WAMS) are introduced briefly. With the development of power grid interconnection and transmission utility deregulation, the operation of electric power system become more and more complex, which challenges the security and transient stability control of power systems. The advent of WAMS opens a new path to the system trajectory prediction and real time closed-loop stability control to prevent power system outage. The defects of current transient stability control system are analyzed, then a possible scheme of transient stability control based on WAMS is proposed, and the corresponding future work is put forward as well. Finally, a new way of solving cascading events is discussed.

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