作　　者： (唐筠）;

机构地区： 合肥通用机械研究院,合肥230031

出　　处： 《煤矿机械》 2017年第8期124-127,共4页

摘　　要： 针对煤矿电网谐波问题,提出利用有源滤波的方式来实现抑制谐波。研究的对象是三相三线制并联型有源滤波器,采用三电平的方式还可以提高负载容量,达到对大容量谐波源的治理要求。基于SVPWM算法的三电平电压空间矢量调制策略,将三电平转化为两电平,简化计算,并且对直流侧中点电位的波动进行分析。最后用MATLAB仿真,达到了预期的效果。 Propose a method of active power filter to suppress the harmonic in view of the power grid harmonic problems in coal mine. The object of study is three-phase three-wire system shunt active power filter. Adopting the way of three level can also improve the load capacity, to achieve governance requirements for large capacity of harmonic source. Based on SVPWM algorithm of three-level voltage space vector modulation strategy, the three level is converted to two level for simplifying calculation, and we analyze the fluctuation of neutral voltage in de side. In the end, it achieves the expected effect with the MATLAB simulation.

关 键 词： 有源滤波器 电压空间矢量 中点电位 仿真