机构地区: 西安交通大学
出 处: 《电力电子技术》 2002年第6期40-42,共3页
摘 要: 提出一种改进的离散Fourier变换和离散Fourier反变换算法 ,在基于数字信号处理器 (TMS32 0C32 )的并联型有源电力滤波器中 ,对电网用户端畸变的谐波电流信号进行快速的离散化分频 ,并依据分频结果获取补偿指定次或指定若干次谐波电流指令信号。最后 ,用实验对该方法进行了验证。 This paper proposes a method of improved discrete Fourier transform and discrete Fourier reverse transform arithmetic. In the shunt active power filter based on a DSP processor (TMS320C32), the frequency of the aberrant harmonics current signal at consumer side of power net can be discreted and the harmonic reference current signal which compensates certain order harmonics or some certain orders harmonics can be got. Finally, the validity of this method is demonstrated by the experimental results.