Research of Rectification Technology of Electric Locomotive under Unbalanced Three-phase Voltage

LV Kang-fei; SHI Chao-yue

Gong-kuang zidonghua (Feb 2012)

Research of Rectification Technology of Electric Locomotive under Unbalanced Three-phase Voltage

LV Kang-fei,
SHI Chao-yue

Affiliations

LV Kang-fei: 1.School of Physic and Electronic Electrical Engineering of Huaiyin Normal University, Huai''an 223300, China.2.Shanxi Electric Power Exploration and Design Institute, Taiyuan 030001, China
SHI Chao-yue

Journal volume & issue: Vol. 38, no. 2
pp. 49 – 52

Abstract

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In view of problem of negative sequence current component in AC side of traditional PWM rectifier because of unbalanced three-phase voltage existed in converter system of underground DC electric locomotive, the paper proposed a control strategy of restraining negative sequence current component of AC side of PWM rectifier under unbalanced three-phase voltage. It introduced implementation of the control strategy in details. The results of simulation and field experiment showed that current wave of AC side of PWM rectifier is close to sine wave and realizes running with unity power factor after using the control strategy.

coal mine power system, traction converter station, dc trolley locomotive, unblanced three-phase voltage, pwm rectifier, negative sequence current

Published in Gong-kuang zidonghua

ISSN: 1671-251X (Print)
Publisher: Editorial Department of Industry and Mine Automation
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: http://www.gkzdh.cn/en.htm

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