A new switched reluctance motor drive circuit for torque ripple reduction

Ishikawa, Hiroyasu; Wang, D.; Naitoh, Haruo

doi:10.1109/pcc.2002.997601

Cited by 20 publications

(9 citation statements)

References 4 publications

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“…4(a) through 4(c). Many of the previous methods of torque ripple reduction are current control schemes using hysteresis control with this three-level voltage [1][3]- [5]. For SRMs having fewer poles, such as the SRM considered herein, the validity of the method using the current reference, such as that shown in Fig.…”

Section: Review Of Previous Methodsmentioning

confidence: 99%

Torque ripple reduction of SRM by optimization of current reference

Shirahase

Morimoto

Sanada

2010

The 2010 International Power Electronics Conference - ECCE ASIA -

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The present paper introduces new current profiles for torque ripple reduction of the SRM. A reduction method using the ideal current profile for instantaneous flat torque has been proposed [1]. The problem with this method is that, as the rotation speed increases, the real current cannot keep up with the reference for the requirement of a high di/dt. This results in increasing torque ripple in the high-speed region. In order to overcome this problem, we propose a novel method for improving the traceability of the real current by changing the reference shape. The validity of the newly obtained current reference was examined by MATLAB/Simulink-based simulations.

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Section: Review Of Previous Methodsmentioning

confidence: 99%

Torque ripple reduction of SRM by optimization of current reference

Shirahase

Morimoto

Sanada

2010

The 2010 International Power Electronics Conference - ECCE ASIA -

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“…One of the most drawbacks of TSF method in industrial applications is the limitation of maximum speed with acceptable torque ripple. By using multi-pulse control to provide a flat-top trapezoidal wave current in the appropriate rotor positions and conduction intervals, a control scheme called trapezoidal current control is proposed to obtain a nearly flat instantaneous torque [5]. However, this control method is not effective enough to suppress torque ripple because a torque deficiency occurs during the commutation of excitation phase.…”

Section: Introductionmentioning

confidence: 99%

Torque ripple minimization of switched reluctance motors by controlling the phase currents during commutation

2014

2014 17th International Conference on Electrical Machines and Systems (ICEMS)

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A novel operation of controlling the phase currents to minimize the torque ripple of switched reluctance motor is proposed in this paper. By changing the slops of the supplied currents appropriately, the torque ripple can be reduced significantly. The dynamic simulation model is built based on the Matlab/Simulink. The results show that the torque ripple can be minimized by the proper shaping of currents during commutation, demonstrating the effectiveness of the proposed control method.

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“…There have been investigations of reducing ripple and noise, using the FEM and other methods [1,2]. As regards torque smoothing, there are methods of controlling the instantaneous current according to optimal patterns [3,4]. Compared to the extensive research on stand-alone SRMs, there have been few studies of SRM-based variable-speed drive systems [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Electric transfer function model of switched reluctance motors and model‐based current control design

Ishikawa

Komaki

Naitoh

et al. 2010

Electrical Engineering Japan

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SUMMARYThis paper presents a current control design for switched reluctance motors (SRMs). The electric transfer characteristic of the motors is studied first. Their transfer function is shown to be expressible by a pure resistive component, which is not constant but varies depending on the motor current and speed. The current control design for SRMs follows the classical design technique used for DC machines, where the zeros of the PI controller cancel the poles of Ls+R. Because the transfer function of SRMs does not have any poles, an I controller is suitable for them. The integral gain should be adjusted in order to compensate the nonlinearity, that is, the variation in the equivalent resistor of the SRMs' transfer function. The values of the integral gain are tuned and tabulated for the motor speed and current. Simulation and experiment demonstrate that the current and speed of the SRMs present good responses without dependence on the motor speed and current.

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A new switched reluctance motor drive circuit for torque ripple reduction

Cited by 20 publications

References 4 publications

Torque ripple reduction of SRM by optimization of current reference

Torque ripple reduction of SRM by optimization of current reference

Torque ripple minimization of switched reluctance motors by controlling the phase currents during commutation

Electric transfer function model of switched reluctance motors and model‐based current control design

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