A Voltage Sensorless Control Method to Balance the Input Current of the Boost Rectifier Under Unbalanced Input Voltage Condition

Chattopadhyay, Souvik and Ramanarayanan, V (2002) A Voltage Sensorless Control Method to Balance the Input Current of the Boost Rectifier Under Unbalanced Input Voltage Condition. In: 2002 IEEE 33rd Annual Power Electronics Specialists Conference. PESC 02, 23-27 June, Queensland,Australia, Vol.4, 1941-1946.

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Abstract

This paper proposes a control method that can balance the input current of the three phase, three wire, Boost rectifier under unbalanced input voltage condition. The control objective is to operate the rectifier in the high power factor mode under normal operating condition but to give overriding priority to the current balance function in case of unbalance in the input voltages. The inner loop implements resistor emulator type input current shaping strategy. The outer control loop performs magnitude scaling and phase shifting operations on current of one of the axis to make it balanced with respect to the current on the other axis. The coefficients of scaling and shifting functions are determined by two closed loop PI controllers. The control method is input voltage sensorless. In implementation Texas Instrument's DSP TMS320F240F is used as the digital controller.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	Copyright 1990 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:	Power factor correction;High power factor rectifiers;Boost rectifier;Current-mode control;Input voltage Unbalance;Input current unbalance
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	02 Feb 2006
Last Modified:	19 Sep 2010 04:23
URI:	http://eprints.iisc.ac.in/id/eprint/5255

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