作　　者： ; ; ;

机构地区： 国防科学技术大学指挥军官基础教育学院

出　　处： 《测试技术学报》 2006年第1期50-54,共5页

摘　　要： 为能用数字信号处理器(DSP)实现三相电路的谐波电流检测,从基于瞬时无功理论的一种谐波电流检测方法出发,分别讨论了三相电流中谐波正序和谐波负序分量检测的数字方法,由此得出了一种实时的谐波电流检测算法.该算法能准确地检测出三相电流中的谐波正序和谐波负序分量.当有源电力滤波器(APF)等装置的谐波电流检测电路采用该算法时,可根据需要适时调整DSP程序来形成不同的参考电流,以便更好地满足APF的不同补偿要求.仿真和实验研究结果表明了该算法的有效性和可行性. To realize the harmonic current detection of three-phase circuit by Digital Signal Processors （DSP）, the digital detecting methods for the harmonic positive and harmonic negative sequence components in three-phase current are discussed respectively, which proceeded from a harmonic current detection based on the instantaneous reactive power theory. A real-time harmonic current detection algorithm is obtained thereby. It can accurately detect the harmonic positive and the harmonic negative sequence components in three-phase current. When it is used by the harmonic current detection circuits in Active Power Filters （APF） and other installations, different reference currents can be formed by adjusting DSP program to satisfy the different compensation needs of APE. The simulation and experiment investigations show the validity and feasibility of this algorithm.

关 键 词： 电能质量 瞬时无功理论 谐波电流 检测 三相电路 数字信号处理器

领　　域： [电气工程]