NDLI: A torque ripple reduction method by current sensor offset error compensation

Content Provider	IEEE Xplore Digital Library
Author	Tamura, H. Ajima, T. Noto, Y.
Copyright Year	2013
Description	Author affiliation: Hitachi Res. Lab., Hitachi, Ltd., Hitachi, Japan (Tamura, H.; Ajima, T.) \|\| Hitachi Automotive Syst., Ltd., Hitachinaka, Japan (Noto, Y.)
Abstract	This paper presents a reduction method for a torque ripple resulting from a motor phase current sensor offset error for motor drive applications such as a hybrid electric vehicle (HEV). The proposed method compensates for the detected motor phase current offset error by subtracting the detected motor phase current offset error value indirectly estimated using the inverter offset voltage reference value from the detected motor phase current value after the offset component of the inverter output voltage reference is calculated by a discrete Fourier transform and a digital low pass filter. The main feature of the proposed method is its ability to compensate for the detected motor phase current offset error that varies during inverter-motor drive. In this paper, the effectiveness of the proposed method with the motor torque analysis is discussed in detail. In the condition of the torque reference from 10[Nm] to 100[Nm] and the motor rotation speed of 1000[rpm], the average value of the torque ripple with the proposed method is 10[Nm] and is reduced by one-second (1/2) compared with the average value of the torque ripple without the proposed method.
Starting Page	1
Ending Page	10
File Size	477535
Page Count	10
File Format	PDF
ISBN	9781479901166
DOI	10.1109/EPE.2013.6631858
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-02
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Motor drives Permanent magnet motor Torque Hybrid Electric Vehicle Error compensation Current Sensor Permanent magnet motors Synchronous motors Drive Inverters Hybrid electric vehicles Reliability
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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