静止同步补偿器信号检测电路的实现

The Implementation of the Signal Detecting Circuit of Static Synchronous Compensator

提出了基于DSP控制的静止同步补偿器(STATCOM)信号检测电路的设计与实现方法,重点阐述了同步信号发生电路和电压、电流瞬时值采样电路的组成原理与实现方法。实验结果表明:所设计的信号检测电路能较精确检测信号过零点和瞬时值,具有较高的实用价值,可用于其它如有源电力滤波器等需要精确测量电压、电流及其电压同步信号的装置中。

The signal detecting circuit in static synchronous compensator （STATCOM） is the key to measure and control reactive power accurately. The design and implementation scheme of the signal detecting circuit of STATCOM based on DSP is proposed and the voltage synchronization signal and voltage and current instantaneous value detecting circuits are presented particularly. The experiment result shows that the developed circuit can be used not only to measure precisely the voltage crossing and the instantaneous value of voltage and current but also for other equipments which need to measure voltage, current and synchronous signal exactly, such as active power filter.