一种基于DSP的单相有源电力滤波器的研究

A single phase DSP based on active power filter

提出了一种新的基于数字信号处理器(DSP)控制的单相电力有源滤波器的方法.此方法与其它方法相比,可利用较少的反馈信息来进行控制,减少了所用控制器的模块,能够既消除谐波又可校正功率因数.经仿真验证了该方法具有可行性.

The use of nonlinear loads, which inject undesired harmonic current into low vlotage distribution systems, is increasing rapidly. Active power filter（APF）are being considered as a potential candidate for solving harmonic problems in order to meet harmonic standards. A new digital singal processor （DSP） based control method for a singal phase active power filter is presented in this paper. The proposed scheme employs a carrier based control that requires less feedback information compared to other reported solutions. It also reduces the total chip count of the system using onchip power electronics peripherals of the DSP controller. The proposed method provides both harmonic elimination and power factor correction. The simulation using the DSP controller verify the feasibility of the method.