发电机功角的实时计算方法

简述了发电机功角的重要性,介绍了确定发电机功角的测量法和计算法,提出一种基于同步相量测量的发电机功角计算模型,该方法利用机端电压、电流采样数据,简单、易于实现,有良好的模型适应性,可用于实时功角计算。通过仿真计算结果表明,该方法具有较好的精度,可满足工程要求。用于全网相量测量系统中,可准确监测功角动态变化,为系统的安全稳定监测提供了一定的基础。

Real-time calculation method of generator power angle

The importance of generator power angle is described briefly. Measurement method and calculation method to determine generator power angle are introduced. A generator power angle calculation model based on synchronous phasor measurement is presented. It makes use of generator's sampling data of voltage and current. The method is simple to master, easy to realize, and good to model adaptability,which can be used in real-time power angle calculation. Simulation results reveal that the method has fine accuracy while metting engineering demand. When the method is used in whole net phasor measurement systems, dynamic variations of power angle can be monitored accurately. It lays a foundation for the safety and stability monitoring of system.