Notice of RetractionA Novel Voltage Stability Prediction Index Based On Wide Area Measurement

In this paper, an on-line voltage stability index based on wide area measurement and the ¿ equivalent branch model is expound, the physical meaning of the index, namely the virtual active margin index (IVAM) was propose. Through the simulation of the IEEE14 standard example, found the problem of IVAM-we propose a novel on-line voltage prediction index considering the trends in IVAM for real-time voltage stability analysis. Because of its computational simplicity, the proposed algorithm is very fast and therefore applicable in on-line protection schemes.