摘要
提出了一种改进型并联混合型有源滤波器。针对非线性负载产生的主要谐波分量，将逆变器与无源滤波器电感并联设计，利用并联滤波电感的分流作用以降低逆变器电流容量、输出电压频率和开关频率，并在逆变器发生故障时滤波器仍能正常工作。针对单次谐波电流检测，应用了一种改进滑动窗算法。仿真和试验结果表明，该混合型有源滤波器不仅具有良好的滤波效果，而且能减少逆变器电流。
An improved shunt hybrid active power filter （HAPF） was proposed. Aiming at the dominant harmonics of the nonlinear loads, inverters were connected in parallel with the passive filter inductors. The shunt function of parallel filter inductor can reduce the current capacity of the inverter, output voltage frequency and switching frequency. Filter can work properly when the inverter is failure. Aiming at the detection of single harmonic current, an improved sliding-window algorism was proposed. The simulation results show that the HAPF not only has good filtering effects, but also can reduce the inverter current.
出处
《低压电器》
北大核心
2009年第9期42-46,50,共6页
Low Voltage Apparatus
基金
国家自然科学基金资助项目资助（60474041）
国家863计划项目资助（2004AA001032）
湖南省教育厅优秀青年科研项目资助（088071）
关键词
非线性负载
有源滤波器
单次谐波
滑动窗
检测
nonlinear load
active filter
single harmonic
sliding-window
detection
