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Direct torque control of induction machines with constant switching frequency and reduced torque ripple

Idris, Nik Rumzi and Yatim, Abdul Halim (2004) Direct torque control of induction machines with constant switching frequency and reduced torque ripple. IEEE Transactions on Industrial Electronics, 51 (4). pp. 758-767. ISSN 0278-0046

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Official URL: http://ieeexplore.ieee.org/iel5/41/29223/01318736....


Direct torque control (DTC) of induction machines is known to have a simple control structure with comparable performance to that of the field-oriented control technique. Two major problems that are usually associated with DTC drives are: switching frequency that varies with operating conditions and high torque ripple. To solve these problems, and at the same time retain the simple control structure of DTC, a constant switching frequency torque controller is proposed to replace the conventional hysteresis-based controller. In this paper, the modeling, averaging, and linearization of the torque loop containing the proposed controller followed by simulation and experimental results are presented. The proposed controller is shown to be capable of reducing the torque ripple and maintaining a constant switching frequency.

Item Type:Article
Uncontrolled Keywords:induction motor drives, machine vector control, magnetic hysteresis, switching convertors, torque control, AC motor drives, direct torque control, field-oriented control technique, hysteresis-based controller, induction motor drives, switching frequency, torque loop, torque ripple
Subjects:T Technology > TJ Mechanical engineering and machinery
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:1652
Deposited By: Dr Zaharuddin Mohamed
Deposited On:09 Mar 2007 03:04
Last Modified:10 Mar 2011 04:31

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