A balanced commutator for three-phase switched reluctance motors to minimize torque ripple

2002 ◽  
Author(s):  
R.S. Wallace ◽  
D.G. Taylor
Keyword(s):  
Torque Ripple ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Three Phase

scholarly journals Design of a Low Torque Ripple Three-Phase SRM for Automotive Shift-by-Wire Actuator

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2329 ◽  
Author(s):  
Grace Firsta Lukman ◽  
Xuan Son Nguyen ◽  
Jin-Woo Ahn
Keyword(s):  
Torque Ripple ◽  
Experimental Result ◽  
The Finite Element Method ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Three Phase ◽  
Electromagnetic Characteristics ◽  
Low Torque ◽  
Pole Surface ◽  
Rotor Structure

The shift-by-wire (SBW) system in vehicles aims to increase performance, safety, and comfort during driving. Switched reluctance motors (SRMs) are simple, resilient, and require only minimum maintenance; these factors make it a good option for use as an SBW actuator. Inherently, SRM generates a higher torque ripple than other AC machines, which can lead to a deterioration of its function. In this paper, a non-uniform air-gap rotor structure combined with the careful positioning of holes near the pole surface is proposed to reduce the torque ripple. The finite element method (FEM) is employed to analyze the electromagnetic characteristics of the design. The proposed motor is manufactured, and experiments are done to verify the performance. The design alone can reduce the torque ripple by 7% and flatten the torque waveform. The experimental result shows that the proposed motor can achieve the desired performance. The estimated torque ripple from the experiment is 26.65%.

On torque ripple reduction in current-fed switched reluctance motors

1999 ◽  
Vol 46 (1) ◽  
pp. 177-183 ◽  
Author(s):  
A.M. Stankovic ◽  
G. Tadmor ◽  
Z.J. Coric ◽  
I. Agirman
Keyword(s):  
Torque Ripple ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Torque Ripple Reduction ◽  
Ripple Reduction

scholarly journals Variation of Speed and Torque Response of Closed-Loop Classical Controlled Different Rated BLDC Motor

2020 ◽  
Vol 8 (6) ◽  
pp. 230-235
Keyword(s):  
Electromotive Force ◽  
Motor Performance ◽  
Closed Loop ◽  
Motor Drive ◽  
Bldc Motor ◽  
Switched Reluctance Motors ◽  
Switched Reluctance ◽  
Torque Response ◽  
Three Phase ◽  
Comparative Examination

This manuscript proposes a comparative analysis of BLDC motor performance at various ratings. The BLDC motor may act as a replacement for conventional engines such as the Brushed DC motor, the induction motor, the switched reluctance motors, etc. Because of the BLDC motor's overweight merits, modeling is performed to improve system performance. The torque feature of BLDC motor plays an extremely significant aspect in the fabrication of the BLDC motor drive device, so it is crucial to approximation the exact torque value that is calculated by the simulation of the model proposed in MATLAB software. In the MATLAB / Simulink setting, different ratings of BLDC motor are simulated after the creation of the straightforward analytical model of the three-phase BLDC motor with counter electromotive force trapezoidal waveforms. Based on the review, a comparative examination of each valued engine outcome is displayed in the MATLAB environment's Graphical User Interface.

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