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Using input condition monitoring to improve the stability of digitally controlled power factor correcting converters

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3 Author(s)
Phong V. Tran ; Department of Electrical and Computer Engineering, UNC Charlotte, Charlotte, NC 28223 ; Robert W. Cox ; Jason M. Anderson

An adaptive controller for a PFC converter is proposed and demonstrated. This controller is applied to a converter with a boost topology operating in continuous conduction mode with average current control. The compensator adjusts a variable gain in the current loop so as to counteract the effects of the time-varying source impedance and input voltage. Experimental results verify that the proposed controller improves the stability of the interaction between the converter and a non-ideal source.

Published in:

2010 IEEE 12th Workshop on Control and Modeling for Power Electronics (COMPEL)

Date of Conference:

28-30 June 2010