基于DSP实现的有源电力滤波器简单控制方法

Simple Control of Based on Shunt Active Power filTer

针对电压源型有源电力滤波器提出了一种简单的控制方法.该控制方法利用d_q变换将三相交流系统变换到旋转的正交坐标系,在此坐标系下利用PI调节器控制有源电力滤波器的补偿电流,使其跟踪其参考电流.文中给出了理论分析和实验装置设计,并基于DSP2407设计制作了一套三相三线制并联有源滤波器的实验装置.讨论了并联型有源电力滤波器的主要硬件结构和软件设计流程,阐述了新型数字处理技术芯片TMS320LF2407的功能.仿真和实验结果验证了所提出控制方法的可行性和有效性.

This paper presents a simple control method based on voltage source shunt active power filter.By the abc/dq transformation,the 3-phase ac system is transformed into a rotating orthogonal coordination,in which the PI controller is used to adjust the injected harmonic currents by the active power filter to the reference current.The paper is composed of the theoretical analysis and simulated results,and based on DSP 2407 devises a set of experimental equipment of the three-phase shunt active power filter.Control and function of the new type DSP TMS320LF2407 used in the power filter,such as the logic software function and its design,are discussed.The simulation and experiment results have tested the feasibility and availability of the controlling method.