NDLI: Frequency Response Analysis of Current Controllers for Selective Harmonic Compensation in Active Power Filters

Content Provider	IEEE Xplore Digital Library
Author	Lascu, C. Asiminoaei, L. Boldea, I. Blaabjerg, F.
Copyright Year	1982
Abstract	This paper compares four current control structures for selective harmonic compensation in active power filters. All controllers under scrutiny perform the harmonic compensation by using arrays of resonant controllers, one for the fundamental and one for each harmonic of interest, in order to achieve zero phase shift and unity gain in the closed-loop transfer function for selected harmonics. The complete current controller is the superposition of all individual harmonic controllers and may be implemented in various reference frames. The analysis is focused on the comparison of harmonic and total closed-loop transfer functions for each controller. Analytical similarities and differences between schemes in terms of frequency response characteristics are emphasized. It is concluded that three of them have identical harmonic behavior despite the fact that their implementation is significantly different. It emerges that the fourth one has superior behavior and robustness and can stably work at higher frequencies than the others. Theoretical findings and analysis are supported by comparative experimental results on a 7-kVA laboratory setup. The highest harmonic frequency that can be stably compensated with each control method has been determined, indicating significant differences in the control performance.
Sponsorship	IEEE Industrial Electronics Society
Starting Page	337
Ending Page	347
Page Count	11
File Size	568325
File Format	PDF
ISSN	02780046
Volume Number	56
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency response Harmonic analysis Power system harmonics Power harmonic filters Active filters Phased arrays Transfer functions Current control Resonance Performance gain selective harmonic controller Active power filters (APFs) current control harmonic compensation
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications

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