NDLI: An active filter for eliminating harmonics and interharmonics in the input current to an AC voltage controller for refrigeration and air-conditioning applications

Content Provider	IEEE Xplore Digital Library
Author	Tennakoon, S.B. Jodeyri, M.H. Shammas, N.Y.A. Lehal, T.
Copyright Year	2005
Description	Author affiliation: Fac. of Comput., Eng. & Technol., Staffordshire Univ. (Tennakoon, S.B.; Jodeyri, M.H.; Shammas, N.Y.A.)
Abstract	Energy saving motor controllers for refrigeration and air-conditioning applications operate at the minimum input power point by finding the optimum firing angle of the thyristors in the motor controller. Consequently, the distorted input current contains harmonics, sub-harmonics, and interharmonics whose frequencies change with the motor speed. Therefore passive filters are not suitable and the best solution is to use an active filter. A single phase active filter with simple constant frequency switching is able to reduce waveform distortion by eliminating a sufficient range of frequencies and offers a low cost solution. Theoretical analysis of the full-bridge and half-bridge topologies led to the development of design equations and curves. Simulation of a half-bridge active filter confirmed the design equations
File Size	3342741
File Format	PDF
ISBN	9075815093
DOI	10.1109/EPE.2005.219338
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-11
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	EPE Association
Subject Keyword	Thyristors Passive filters Motor Control Harmonic Elimination Voltage control Power harmonic filters Equations Phase distortion Active filters Frequency Air-Conditioning Harmonic distortion Refrigeration Active Filter Refrigerationr
Content Type	Text
Resource Type	Article

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