【摘要】 以基于瞬时无功功率理论的谐波电流检测算法为基础,提出一种更适合于单相电流检测的改进型算法,精简了三相到两相的坐标变换环节,同时采用复化Simpson积分算式代替低通滤波器直接由、计算出其直流值.仿真表明,该改进算法计算相对简单,在时效性和准确性上都具有一定的优势.更多还原

【Abstract】 This paper presents an improved method of harmonic current detection which is fit for single-phase current measurement based on the instantaneous reactive-power theory.The modified algorithm simplifies three-phase to two coordinate transformations and uses the Simpson formula to replace the low pass filter to achieve direct component.The simulation result shows the advantages of this method.更多还原