电力系统保护与控制2012，Vol.40Issue(5)：10-15,6.
复杂工况下三相电流基波正序有功分量检测的新方法研究
A novel detection method for three phase current fundamental wave positive-sequence active component under complicated working conditions
摘要
Abstract
Accurate and real-time detection of compensated components plays an important role in compensation results of active power filter. Under the complicated condition of unsymmetrical and distorted three-phase system voltage with frequency fluctuation, a novel fundamental positive-sequence active current detection method based on series second order generalized integrator (S-SOGI) is proposed. Moreover the S-SOGI has three functions of phase-shift, filtering and assisted frequency locking. Compared with normal dq transformation detection method, the novel method is exposed on oq3 reference frame without PLL and LPF, and the fundamental positive-sequence active current components can be obtained exactly and quickly. At last the simulation results show the efficiency and accuracy of the improved method under Matlab/Simulink.关键词
级联二阶广义积分/不对称畸变电压/频率跟踪/改进的锁频环/谐波检测Key words
series second order generalized integrator (S-SOGI)/ unsymmetrical and distorted three-phase system voltage/frequency-tracking/ enhanced frequency locked loop (EFLL)/ harmonic detection分类
信息技术与安全科学引用本文复制引用
邵振华,陈冲,林瑞全..复杂工况下三相电流基波正序有功分量检测的新方法研究[J].电力系统保护与控制,2012,40(5):10-15,6.基金项目
福建省自然科学基金资助项目(2008J040416) （2008J040416）
