CAJ | 학술논문

为了减小容量降低成本，把5、7次无源滤波器同有源滤波器并联使用；11次单调支路与有源滤波器分压；同时串入基波谐振支路使基波电压全部在谐振支路上，减少流过有源滤波器的基波电流。采用双闭环控制，经Matlab仿真验证了该有源滤波器能够有效的抑制电网中的谐波。
위료감소용량강저성본，파5、7차무원려파기동유원려파기병련사용；11차단조지로여유원려파기분압；동시천입기파해진지로사기파전압전부재해진지로상，감소류과유원려파기적기파전류。채용쌍폐배공제，경Matlab방진험증료해유원려파기능구유효적억제전망중적해파。
In order to reduce the capacity and manufacturer cost , 5 and 7 times harmonic passive filter and active fil-ter are in parallel in this structure , while 11 series resonance branch shares part of the voltage of active filter .At the same time , series with the fundamental resonance branch makes the fundamental voltage on the resonance branch and decreases fundamental frequency current of the active filter .A double closed-loop control method is adopted and the Matlab simulation analysis is performed , which verifies that the active filter can effectively suppress the harmonic in power grid .