基于GPS和DSP的发电机转子位置测量

Measurement of Generator Rotor Position Based on GPS and DSP

全球定位系统的广域相量测量是近年来发展的新技术,其时钟信号的定时精度小于1μs,从而保证了所测的各发电机的转子位置具有相同的参考基准。数字信号处理器可以实时快速地实现对发电机转子位置测量中的数据采集、处理以及通信联网等功能。通过测量发电机转子a相端电压的过零点来估计其位置,从而使得发电机群仍然能够保持同步,为电力系统快速的、在线的、动态监测提供了重要依据,从而为大电网安全稳定运行提供了保障。

The wide phasor measurement of GPS is a new technology developed in recent years, the clock signal times accuracy of less 1μs, and the reference to ensure that the measured rotor angles of all generators are with the same reference. DSP can acquire real-time rapid realization of the generator rotor position measurement data acquisition, processing and communications networking functions. By measuring the phase voltage of the generator rotor in a position to estimate zero, all generators can still be synchronously operated. Power systems for rapid, on-line, provide an important basis for dynamic monitoring, provide greater protection to safe and stable operation of power grids, improve the social and economic benefits.