The Study on Automatic Control Method of Power System Stability

摘要

In order to control system transient stability and improve TSCOPF's computational efficiency, the paper, based on analyzing the existing problem of multiple faults' transient stability constrained optimal power flow trace sensitivity, introduces strict judgment of transient stability in TSCOPF model and can improve computational efficiency by applying track sensitive technology. The paper adds malfunction screening process in transient stability constraint, which can leave out calculating parts of trace sensitivity, do away with inoperative constraint in time and improve computational efficiency. Meanwhile, for instable malfunction, it has no need to look for critical stable track, so as to save lots of simulation time. It can better control system transient stability and satisfy actual power grid's demands on stability. Simulation results on the system verify effectiveness of algorithm.