CAJ | 학술논문

有源电力滤波器是一种用于动态抑制谐波、补偿无功的新型电力电子装置，它能够对大小和频率都变化的谐波以及变化的无功进行补偿。该文提出了FFT变换与小波变换相结合的检测电路，小波变换分析将信号分成了稳态部分及非稳态部分，稳态部分采用傅里叶变换，非稳态部分采取模极大值分析。利用Matlab对其仿真很好的验证了该方法是可行的，可有效滤除谐波。
유원전력려파기시일충용우동태억제해파、보상무공적신형전력전자장치，타능구대대소화빈솔도변화적해파이급변화적무공진행보상。해문제출료FFT변환여소파변환상결합적검측전로，소파변환분석장신호분성료은태부분급비은태부분，은태부분채용부리협변환，비은태부분채취모겁대치분석。이용Matlab대기방진흔호적험증료해방법시가행적，가유효려제해파。
APF is a new power electronic devices that can suppress harmonics dynamic and compen-sate reactive power . It also can compensate the harmonics on the size and frequency of change and reac-tive power of change. In this paper, FFT transform and wavelet transform combined detection circuit, wavelet transform analysis divides the signal into a steady-state and non-steady-state part, steady-state part use the Fourier transform, non-steady-state use modulus maxima analysis. Using Matlab we conclude the method is feasible and can effectively filter out harmonics.