CAJ | 학술논문

对有源电力滤波器(APF)谐波检测方法进行研究,将自适应神经网络(ADNN)的信号处理技术应用于三相非线性负载的谐波电流检测中,提出了一种基于ADNN检测方法.该方法的主要特点是不仅能检测谐波电流中的基波成分,也能检测出其中不同的高次谐波分量的幅值和相位.通过搭建一个基于DSP三相并联APF的实验系统来证实该方法的有效性,并与传统的傅里叶变换法和d-q算法相比较,验证其具有更快的动态响应.最后,通过分别对感性负载和容性负载进行阶跃变化操作试验检验所提出的ADNN检测法的APF谐波补偿特性,并获得了优良的补偿性能.
대유원전력려파기(APF)해파검측방법진행연구,장자괄응신경망락(ADNN)적신호처리기술응용우삼상비선성부재적해파전류검측중,제출료일충기우ADNN검측방법.해방법적주요특점시불부능검측해파전류중적기파성분,야능검측출기중불동적고차해파분량적폭치화상위.통과탑건일개기우DSP삼상병련APF적실험계통래증실해방법적유효성,병여전통적부리협변환법화d-q산법상비교,험증기구유경쾌적동태향응.최후,통과분별대감성부재화용성부재진행계약변화조작시험검험소제출적ADNN검측법적APF해파보상특성,병획득료우량적보상성능.
The harmonic current detection methods of APF(Active Power Filter)are studied and a ADNN-based detection method is proposed,which applies ADNN signal-processing technique to detect the total harmonic current of three-phase nonlinear load,not only its fundamental component but also the amplitude and phase of its high-order harmonic components.The validity of proposed method is verified with a DSP-based experimental three-phase shunt APF and its faster dynamic response is proved by comparing with traditional methods of Fourier transform and d-q algorithm.The better compensation performance of ADNN-based APF is verified by the step change tests respectively with inductive load and capacitive load.