Three-phase current reproduction method using the DC current sensor capable of suppressing a harmonic noise

被引：0
作者：
Maekawa, Sari [1 ]
Hasegawa, Yukihisa [2 ]
Suzuki, Nobuyuki [2 ]
Kubota, Hisao [3 ]
机构：
[1] Toshiba Corporation Fuchu Operations, Fuchu-shi, Tokyo 183-8511, 1, Toshiba-cho
[2] Toshiba Corporation Yokohama Complex, Isogo-ku, Yokohama-shi, Kanagawa 235-0017, 33, Shin-Isogo-cho
[3] Meiji University School of Science and Technology, Tama-ku, Kawasaki 214-8571, 1-1-1, Higashi-mita
来源：
IEEJ Transactions on Industry Applications | 2014年 / 134卷 / 01期
关键词：
Current sensor; DC; Inverters; Power electronics; Reproduce the three-phase current; Shunt resistance;
D O I：
10.1541/ieejias.134.96
中图分类号：
学科分类号：
摘要：
There are techniques for detecting the motor current with a sensor that is placed in the DC portion of the inverter. Also, when using a DC current sensor, there is a case that current cannot be reproduced. These PWM techniques have been modified so that the detection rate of the motor current is improved. However, these PWM methods distort the motor current. In addition the acoustic noise of the motor is increased. In this paper, we theoretically explain the cause of the current distortion. The change of PWM generation causes distortion of current. We propose a PWM generation method using the three carriers. In addition, we also propose a method to reproduce the three-phase current from the DC current. We thus show that the proposed method improves the current detection rate without current distortion. © 2014 The Institute of Electrical Engineers of Japan.
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页码：96 / 105
页数：9
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