综合有源电力滤波系统研究

有源电力滤波器是当前对电网中谐波污染的有效手段 ,文中对综合式有源电力滤波系统的工作原理进行了理论研究和分析 ,提出了基于 80C1 96KC系统的控制电路 ,以大功率MOSFET作为主电路实现电压源PWM逆变器 ,采用一种高次谐波和无功电流同时能被检测的方法 ,由有源电力滤波器与无源滤波器相串联构成综合有源滤波系统 ,结果表明系统加入小容量的有源滤波器 ,系统滤波和补偿特性得以明显提高

A Research on the Synthetical Active Filters System

The active filter system is an effective means to cope with harmonic pollution in power network, the control method and the structure of circuit based on 80C196KC processor are proposed on the basis of the study given to the structure and working principle of the synthetical system which is composed of a series active filter and a shunt passive filter,with the MOSFET as the main circuit of a voltage source PWM inverter and through a method of detecting reactive current and high harmoniccan simultaneously The results show that when small volume active filters are added to the system the synthetical filters system is of excellent filtering and compensating quality