Analysis of torque ripple due to phase commutation in brushless DC machines

Carlson, R.; Lajoie‐Mazenc, M.; Fagundes, J.C.d.S.

doi:10.1109/28.137450

Cited by 268 publications

(76 citation statements)

References 2 publications

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“…The BLDCM drive is analyzed briefly in this section and interested readers are referred to [6][7][8][9] for details. A BLDCM drive has two distinct working regions, namely conduction and commutation periods.…”

Section: A Brief Analysis Of Bldcm Drives and Generalized Difference mentioning

confidence: 99%

“…• difference between phases in many studies concerning the reduction of commutation torque ripple [1][2][3][4][5][6][7][8][9]. In this case, outgoing phase back-emf starts * Correspondence: turker@yildiz.edu.tr decaying at the beginning of the commutation period.…”

Section: Introductionmentioning

confidence: 99%

“…However, back-emf signals of incoming and outgoing phases are assumed to be constant during the commutation period in many works [4][5][6][7][8][9] due to the short duration of the commutation period. This assumption allows analytical analysis of the commutation period and commutation torque ripple [6][7][8][9]. The analytical analysis with the aforementioned assumptions asserts that if slew rates of incoming and outgoing currents are inversely identical, commutation torque ripple is eliminated.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A switched current controller with commutation delay compensation for the reduction of commutation torque ripple in BLDCM drives

Türker¹,

Khudhair²

2017

Turk J Elec Eng & Comp Sci

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Abstract:The mathematical model of the equivalent circuit of a brushless DC motor switches during the operation due to commutation. This issue causes a sudden ripple in the output torque, which is called commutation torque ripple.Brushless DC motor drives suffer from commutation torque ripple, affecting the performance of the motor in practical applications. A discrete-time switched controller is proposed to reduce the commutation torque ripple in brushless DC motor drives. The proposed controller is a combination of two distinct controllers designed for two different working regions of brushless DC motors. In addition, the commutation delay is also considered in the controller and a predictive structure is implemented to reduce this effect. The overall control scheme consisted of the switched controller and the commutation delay compensation, showing the originality of this study. The performance of the proposed controller scheme is tested through various comprehensive experiments to illustrate its effectiveness and viability.

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Section: A Brief Analysis Of Bldcm Drives and Generalized Difference mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A switched current controller with commutation delay compensation for the reduction of commutation torque ripple in BLDCM drives

Türker¹,

Khudhair²

2017

Turk J Elec Eng & Comp Sci

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“…However, commutation torque ripple, which usually occurs due to the loss of exact phase current control, has always been one major factor in preventing BLDCM from achieving high performance. So far, many studies have been performed to reduce commutation torque ripple [7][8][9]. An original analytical study on commutation torque ripple has been presented in many papers, from which a conclusion has been drawn that relative torque ripple is independent of current and varies with speed.…”

Section: Introductionmentioning

confidence: 99%

A New Approach for Torque Ripple Minimization in Brushless DC Motor Using SEPIC Converter

Krishna¹,

Kumar²

2013

J Electr Electron Syst

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“…The profiles of the torque developed by the motor during the commutations have been derived in [11] as a function of the motor speed by correlating currents, speed and torque of the motor. All the significant literature on the matter has approached the analysis of the PM BLDC drives by means of the phase variables.…”

Section: Introductionmentioning

confidence: 99%

Vector analysis of the current commutation in PM BLDC drives

Buja¹,

Menis²,

Keshri³

2013

Bulletin of the Polish Academy of Sciences: Technical Sciences

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Abstract. The vector approach in either stationary or synchronous plane is commonly used for the analysis of the AC drives like induction and PM brushless AC drives whilst it has been hardly ever used for the PM brushless DC (BLDC) drives. A possible reason is that they require injection of square-wave currents into the motor phases, which are non-sinusoidal in nature. Recently, the PM BLDC drives have been analyzed by the help of the vector approach in the stationary plane. This paper applies such an approach to an in-depth analysis of the operation of the PM BLDC drives during the current commutations, illustrating the potentialities of the approach in giving a better insight into the current transients and the ensuing torque characteristics. At last, two voltage control strategies proposed to eliminate the torque ripple due to the current commutations are considered, showing that they can be readily understood by the vector approach.

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Analysis of torque ripple due to phase commutation in brushless DC machines

Cited by 268 publications

References 2 publications

A switched current controller with commutation delay compensation for the reduction of commutation torque ripple in BLDCM drives

A switched current controller with commutation delay compensation for the reduction of commutation torque ripple in BLDCM drives

A New Approach for Torque Ripple Minimization in Brushless DC Motor Using SEPIC Converter

Vector analysis of the current commutation in PM BLDC drives

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