A Harmonic Current Detection Method for APF Under Unbalanced Voltage Condition Using Complex LMS Estimation

Authors :: Yun-lu Li
Zhen Liu
Da-zhi Wang
Source :: DEStech Transactions on Engineering and Technology Research.
Publication Year :: 2017
Publisher :: DEStech Publications, 2017.
Abstract: The unbalanced voltage conditions deteriorate the performance of the harmonic detection of active power filter (APF). To address this problem, a complex LMS based method is proposed in this paper. A complex Least Mean Squares (LMS) is designed for phase-tracking. DSPOC principle is utilized to adjust the estimate of synchronous frequency. Then, the proposed method is employed to improve the harmonic detection of APF. The effectiveness of the method is confirmed through simulation results.

Subjects :: Engineering
business.industry
020208 electrical & electronic engineering
020206 networking & telecommunications
02 engineering and technology
Least mean squares filter
Active power filter
Control theory
0202 electrical engineering, electronic engineering, information engineering
Electronic engineering
Harmonic
Current (fluid)
business
Voltage

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