智能型有源滤波器的研究与设计

Research and design of intelligent active power filter

基于新型电力系统有源谐波补偿与滤波器自适应控制原理,使用以DSP-TMS320F2812为核心的智能控制系统对电网信号进行采集、检测、数据处理及计算,得到相关高次谐波的信息并产生控制信号至智能功率模块(IPM)驱动电路,控制有源滤波器组对电网中各次谐波进行补偿,达到改善电能质量的效果。同时在LCD上实时显示对电网与滤波器监测的数据。此系统在理论仿真和实际电网电力系统的电能质量补偿实验中均取得了非常好的效果。

Based on a new approach of active harmonic compensation in power system and the filter adaptive control principle, an intelligent active filter system with the core part DSP-TMS320F2812 is proposed. By using this control system, the grid datas are collected, tested, processed and calculated. As the calculation results, high harmonic parameters are achieved and converted to the control signals. Then these control signals are sent to IPM driver circuits and used to control active filter to compensate for all the harmonics in the grid. As a result, the effectiveness of power quality is improved. Furthermore, the monitoring data from the grid and filter can be real- time displayed in the LCD. The simulation and actual experimental results of this system show that it has good effectiveness on power quality compensation.