基于TMS320F2812控制的有源电力滤波器研制

Devolepment of Active Power Filter Based on TMS320F2812

电力电子装置等非线性装置的大量使用使电力系统谐波问题严重,会影响电力系统和用电设备的安全运行。有源电力滤波器(APF)作为一种有效的滤波器装置,具有响应速度快、滤波效果好,不受系统阻抗影响的特点。研制了基于TMS320F2812控制的APF,TMS320F2812速度快、精度高,采用优化设计的低通滤波器、i_p-i_q谐波检测算法和定时比较PWM控制。实验结果表明,所研制的滤波器的稳态和动态性能良好。

The application of nonlinear equipments, for example, power electronics equipments, in power sysytem pro- duees power harmonics which affects safe operation of power system and electric equipment.The response speed of ac- tive power fiher（APF） is quick,its filter effect is good and its characteristic isn＇t affected by system impedance.APF is developed,based on TMS320F2812 which is fast and accurate.LPF optimized,ip-iq algorithm and PWM of timing com- parison are adopted.Experimental results show that the static and dynamic characteristic of developed APF is good.