基于DSP的有源滤波控制系统的设计

Design of active power filter control system based-on the DSP

针对有源电力滤波器(APF)具有对电网参数及负载变化的快速跟踪适应能力和良好的补偿效果,设计了三相并联型有源电力滤波控制系统。介绍滤波器的工作原理并建立了数学模型,阐述了两种对谐波进行检测补偿控制的策略;然后在此基础上完成了以DSPTMS320F2812为控制核心的系统硬件平台搭建,并在CCS2.2开发环境下对系统软件进行了开发;最后基于软硬件完成了对系统性能的测试。结果表明,系统对各种控制信号的采样迅速、准确;补偿电流的输出正确。

Aiming at the fast tracking adaptability and good compensation effect of active power filter(APF)to power network parameters and load changes,a three-phase shunt active power filter control system was designed.The working principle of the filter was introduced and the mathematical model was established.And two strategies of detecting and compensating harmonics were expounded.On this basis,the system hardware platform taking DSP TMS320F2812as the control core was built,and the system software was developed under the development environment of CCS2.2.Finally,the performance of the system was tested based on hardware and software.The results shows that the system can sample various control signals quickly and accurately,and the output of compensation current is correct。