Torque ripple minimization of a switched reluctance motor including mutual inductances via sliding mode control technique

Inanc, N.; Derdiyok, Adnan; Ozbulur, V.

doi:10.1109/isie.1997.648875

Cited by 16 publications

(3 citation statements)

References 6 publications

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“…Studies on optimising the profile of the rotor is also proposed in literature 15 . A scheme for optimising the profile for torque ripple minimisation is presented in 15 , whereas [16][17][18] , attempt to achieve the same by modulating the excitation current.…”

Section: Since Torque Depends Onmentioning

confidence: 99%

A Modulation Technique for Sensorless Control of Switched Reluctance Motor

et al. 2019

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The switched reluctance motor (SRM) uniquely bears several merits with respect to other motor configurations. Especially, the construction of the rotor is simple in the sense that it neither contains copper not contains permanent magnets. Because of this construction, likelihood of rotor’s failure is less than the other motor configurations. This makes this motor more suitable for harsh environments. On the flip side, this motor cannot directly operate with AC or DC power source and needs electronic commutation. For commutation, the information on instantaneous orientation of the rotor is essential. Since inclusion of appropriate sensor adds to the cost and complexity of the system, sensor-less commutation of SRM gained interest among the researchers and has been studied extensively in literature. The techniques for sensorless control of SRM can be broadly classified into Active phase and Idle phase techniques. Idle phase techniques are generally believed to be not suitable for high speed operation beause of tail current in a phase, i.e., because of inductive nature of the phase, it takes time for flow of current to stop. This paper proposes a novel idle phase technique that is conducive for high speed operation of switched reluctance motor.

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Section: Since Torque Depends Onmentioning

confidence: 99%

A Modulation Technique for Sensorless Control of Switched Reluctance Motor

et al. 2019

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“…Vdc (13) The expressions (11), (12), and (13) can be combined with (5) and (6) and rewritten as = .TQ +Zl E ( Q(n)q d rs (nO,) 2 where i is the vector of current harmonic magnitudes, (14) = [ian 'at tbt 1a2 'b2 (15) and Q's are symmetrical matrices composed of eo, en, andf,. It is noted that the Ist term to the right of the = sign is the average torque.…”

Section: Machine Modelmentioning

confidence: 99%

“…Over the past decade, a significant body of research has appeared that develops excitation strategies to mitigate torque harmonics. Research has concentrated on two main areas: open-loop control [1][2][3][4][5][6][7] and estimation-based feedback control [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. Both require detailed knowledge of machine parameters and are therefore sensitive to parameter variation.…”

Section: Introductionmentioning

confidence: 99%

Feedback-Based Mitigation of Torque Harmonics in Switched Reluctance Motor Drives

Koenig

Pekarek

2007

APEC 07 - Twenty-Second Annual IEEE Applied Power Electronics Conference and Exposition

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An issue that often arises in switched reluctance machine (SRM) drives is excessive vibration/noise created by harmonics of electromagnetic torque (torque ripple). In this research, a closed-loop control technique is developed to eliminate torque harmonics produced by a SRM. A piezoelectric washer has been designed and incorporated into a SRM drive system to sense harmonics of torque-ripple-induced vibrations. Simulation and laboratory experiments are presented to validate that the sensor output is correlated to torque ripple. To mitigate the undesirable torque harmonics, a gradient algorithm is used to minimize the measured vibration harmonics by adjusting current magnitude components. The control is discussed in detail and simulation and hardware results are presented.

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