【摘要】 通过分析电网中的典型谐波源 ,说明了整流器直流侧电感或电容滤波时 ,其特性类似谐波电流源或电压源。在探讨并联型和串联型APF工作原理的基础上 ,研究了它们对不同谐波源的补偿特性。从而说明对电流型或电压型谐波源进行谐波补偿 ,应该分别使用并联型或串联型APF。否则 ,不能起良好的补偿效果。更多还原

【Abstract】 Through analyzing a typical harmonic source in power system, it is illustrated that the property of a rectifier with a filter inductor or capacitor on its dc side is similar to harmonic current or voltage source. On the basis of discussing the operation principles of the shunt and the series active power filters, their compensation characteristics to different types of harmonic sources are investigated. Therefore, it is demonstrated that the shunt or series APF should be used for compensating the current or the voltage harmonic source. Otherwise, good compensation effect will be lost.更多还原