基于GPS的电力系统暂态稳定预测

提出了一种基于ＧＰＳ的电力系统暂态稳定性预测方法，该法利用ＧＰＳ相量测量单元采集所得的各发电机功角及角速度等变量，根据发电机单元模型预测发电机未来的行为，并由预测结果来判别系统的稳定性。理论分析及算例证明了方法的合理性和有效性。

Prediction of Power System Transient Stability Based on GPS

A good deal of attention has been always devoted to transient stability of power system. But in the past,the most interested-in angle of generator can not be measured. With the development of technology,the Globe Position System(GPS) has been used widely in power system. The Phasor Measure Unit(PMU) based on GPS realized the mea sure of phasor angle of power system and provided the foundation for solution of the transient stability of power system. The proposed paper gives a method of prediction of power system transient stability based on GPS. The method uses the PMU to measure rotor angle and velocity, power of machine and electromagnetism of every gen erator at a time,etc. According to the topology configuration power system and the model of every generator,the future behavior of every generator can be predicted. In consequence, the transient stability can be determined. Theoretical analysis and the simulation results show that the method is feasible and the precision of prediction re sult is satisfied.