|Table of Contents|

Improved virtual flux oriented vector control of PWM rectifier(PDF)

[ISSN:1007-449X/CN:23-1 408/TM]

Issue:
2008年05
Page:
504-508
Research Field:
Publishing date:

Info

Title:
Improved virtual flux oriented vector control of PWM rectifier
Author(s):
WU Feng-jiangWANG Zhi-wenSUN Li
Department of Electrical Engineering, Harbin Institute of Technology
Keywords:
PWM rectifiers virtual flux observers vector control
PACS:
TM46
DOI:
-
Abstract:
To solve the DC drift problem caused by a wrong initial value selecting of integer in virtual flux oriented vector control for PWM rectifier,an improved virtual flux observer based on an integrator with saturable amplitude limited feedback loop was proposed.And comparative analyses of three kinds of virtual flux observers based on pure integrator,inertia loop and the proposed method were performed respectively.The simulation and experimental results of the PWM rectifier control system are given based on the improved VFOC.The results show that the proposed method can observe the virtual flux well despite the initial phase of the input line voltage,and conforms the validity and feasibility of the proposed improved control strategy.

References:

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Memo

Memo:
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Last Update: 2008-12-11