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Generalized Feedforward Control of Single-Phase PWM Rectifiers Using Disturbance Observers

Ghosh, Rajesh and Narayanan, G (2007) Generalized Feedforward Control of Single-Phase PWM Rectifiers Using Disturbance Observers. In: IEEE Transactions on Industrial Electronics, 54 (2). pp. 984-993.


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This paper presents a generalized feedforward control scheme for a single-phase boost rectifier, operating with indirect current control, to improve the dynamic response of its output voltage against line and load disturbances, as well as for changes in the reference voltage. Digital implementation of the control method is discussed. A small-signal model of the converter system is presented. The stability of the current loop at light loads is studied. A method is presented to estimate the input voltage and the load current without having to actually measure these quantities for the purpose of feedforward control. Simulation and experimental results are presented.

Item Type: Journal Article
Publication: IEEE Transactions on Industrial Electronics
Publisher: IEEE
Additional Information: Copyright 2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: AC–DC power conversion;boost rectifier;current control;digital control;feedforward systems;observers.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 28 Jul 2008
Last Modified: 19 Sep 2010 04:48
URI: http://eprints.iisc.ac.in/id/eprint/15267

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