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An Input Voltage Sensorless Input Current Shaping Method for Three Level Three Phase High Power Factor Boost Rectifier

Chattopadhyay, Souvik and Beig, AR and Ramanarayanan, V (2002) An Input Voltage Sensorless Input Current Shaping Method for Three Level Three Phase High Power Factor Boost Rectifier. In: 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting, 13-18 October, Pennsylvania,USA, Vol.3, 2110 -2116.


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This paper proposes a simple digital control scheme to achieve high power factor operation for three level three phase boost rectifier. The controller uses a resistor emulator concept in discrete domain to shape the input current like the input voltage. It is based on fixed switching frequency, continuous conduction mode (CCM) operation of the converter. The control law is input voltage sensorless, as a result a phase locked loop (PLL) is not required. Structurally it is different from vector control type of control scheme because the controller works in the stationary reference frame and inner loop current regulators are not required. The PWM generation is based on symmetric space vector method. In each control period only six devices (including three complementary) change states. The switching frequency can therefore be half compared to the two level switching rectifiers for the same quality input current waveform. The details of the digital control algorithm has been explained for the hardware platform of Texas Instruments's DSP based unit TMS320F240 EVM.

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 rectifier; Multilevel Converter;Boost rectifier;Three Level Diode Clamp Converter; Current mode control
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 27 Jan 2006
Last Modified: 19 Sep 2010 04:23
URI: http://eprints.iisc.ac.in/id/eprint/5227

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