三相三线不对称负载无锁相环I_p-I_q谐波电流检测法  

The I_p-I_q Detecting Method for Harmonic Current in Unbalanced Three-phase Three-wire Circuits

作　　者：唐校[1] 张淼[1] 王锋[1] 

机构地区：[1]广东工业大学自动化学院,广东广州510006

出　　处：《河北科技师范学院学报》2008年第3期49-52,共4页Journal of Hebei Normal University of Science & Technology

摘　　要：有源滤波器补偿电流的传统检测方法中,由于锁相环存在零点飘移、假锁、失锁等问题,造成基准信号的相位误差,提出了采用无锁相环的检测法检测谐波电路。仿真结果表明,与传统方法向比,该方法简单可靠,降低成本。The problems such as zero detecting method because of the phase ticle proposes one new method without also made the circuit more simple and drifting, false lock, lose lock exist in the traditional harmonic current lock loop （PLL）. These problems could result in phase error. This article proposes one new method without PLL. The MATLAB simulation proved that it not only saved cost, but also made the circuit more simple and reliable.

关 键 词：谐波检测 三相三线不对称负载 IP-IQ检测法 锁相环 

分 类 号：TM761[电气工程—电力系统及自动化]