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针对动态电压恢复器 (DVR)结构特点与工作过程 ,进行了低通滤波器电路拓扑结构、参数及材料的设计。运用频谱特性分析法、阻抗匹配法进行了滤波器的理论分析与设计。采用MATLAB中的simulink组建的DVR模拟系统对滤波效果进行了仿真分析。最后将设计的滤波器接入实际电路进行实验研究。在克服了由于铁芯饱和引起的铁磁谐振问题后 ,实现了运行可靠、符合标准的滤波器
Aiming at the structural characteristics and working process of dynamic voltage restorer (DVR), the topology, parameters and material design of low-pass filter circuit are studied. The theoretical analysis and design of the filter are carried out by using spectrum characteristics analysis and impedance matching. The simulation of the filtering effect is carried out by using DVR simulation system built by simulink in MATLAB. Finally, the design of the filter access to the actual circuit for experimental study. After overcoming the ferromagnetic resonance problem caused by the saturation of the iron core, a reliable and standard-compliant filter