A Deadbeat Current Control Method for Switched Reluctance Motor

Li, Qianni; Xu, Aide; Zhou, Lifang; Shang, and Chaoyi

doi:10.2528/pierl20032103

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…In order to solve the above problems, many methods have been proposed at home and abroad. In terms of current control, Q. N. Li proposed a deadbeat current control strategy, which makes the current control command easier and plays an obvious role in suppressing torque ripple [3]. X. Zhang also adopted the deadbeat current control method to improve the phase current control accuracy, which also has a good effect in suppressing current ripple [4].…”

Section: Introductionmentioning

confidence: 99%

An Analytic Method of Segmented PWM Duty Cycle for Switched Reluctance Motor

Huang

et al. 2023

Trans. Electr. Mach. Syst.

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In view of the large current peak and torque ripple in the actual current chopping control of switched reluctance motor, a segmented PWM duty cycle analysis method of switched reluctance motor based on current chopping control is proposed in this paper. The method realizes the control of the winding current by adjusting the average voltage of the two ends of the winding in one cycle through the PWM duty cycle. At the same time, according to the inductance linear model, the conduction phase is divided into a small inductance region and an inductance rising region, and the analytical formulas of PWM duty cycle in the two regions are deduced respectively. Finally, through matlab/simulink simulation and motor platform experiment, the current chopping control is compared with the segmented PWM duty cycle analysis method in this paper. Simulation and experimental results show that the segmented PWM duty cycle analysis method can effectively reduce the current peak and torque ripple, and has high practical application value.

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Section: Introductionmentioning

confidence: 99%

An Analytic Method of Segmented PWM Duty Cycle for Switched Reluctance Motor

Huang

et al. 2023

Trans. Electr. Mach. Syst.

View full text Add to dashboard Cite

show abstract

“…The turn on and turn off angle optimization of power converter can also mitigate the ripples in average torque [16]. The shaping of phase currents through controlled switching of the converter, also called as active method, is employed to reduce the torque ripple [17,18]. Constant instantaneous torque can be achieved by regulating the speed of stator flux linkage [19].…”

Section: Introductionmentioning

confidence: 99%

“…A simplified control method for direct and simultaneous control of torque in single-winding bearing less SRM is presented in [20]. A fixed switching frequency deadbeat control algorithm to accomplish active method reduced the torque ripple in [33]. DSAFSRMs having two stators and a toothed rotor further improve torque/power density.…”

Section: Introductionmentioning

confidence: 99%

Design Improvements in Double-stator Axial Flux Switched Reluctance Motor for Smoother Torque Profile

Chaudhary¹,

Pokhriyal²,

Chaudhary³

2022

PIER C

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High torque and power generation capability of double-stator axial flux switched reluctance motor (DSAFSRM) makes it superior to conventional and segmented rotor switched reluctance motors. Despite its significant feature, the ripple in developed torque still limits the usefulness of DSAFSRM for widespread industrial application. This paper proposes an 8/6/8 pole DSAFSRM with modification in rotor pole shape to reduce torque ripples in respective model. The respective phase windings of the upper and lower stators are excited externally by preparing the circuit in Maxwell software. Each rotor tooth is constructed with two types of slots with different levels of air gap to change the inductance profile. Firstly, the design of a conventional DSAFSRM has been presented; thereafter, some geometric modifications in the rotor tooth have been suggested and investigated to obtain a lower torque ripple at 1200 rpm in the proposed DSAFSRM. The efficacy of the proposed motor is investigated through finite element method (FEM) based analysis and also by comparative analysis with other types of switched reluctance motors. It can be inferred from the simulation results that the torque ripple is significantly reduced by 55.62% in the proposed DSAFSRM compared to the conventional DSAFSRM. However, the efficiency of the proposed DSAFSRM (73.87%) is slightly less than the conventional DSAFSRM (74.65%).

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“…The addition of a semi-oval auxiliary core on both sides of rotor tooth alleviates the torque ripple [16]. In active method, the shaping of phase currents through switching control is employed to reduce the torque ripple [17,18]. The increase in phase number also lessens the torque ripple in SRMs.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Method Based Design and Analysis of a Low Torque Ripple Double-Stator Switched Reluctance Motor

Gupta¹,

Chaudhary²

2021

PIER C

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Double-stator switched reluctance motors (DSSRMs) acquire attention because of their high torque/power generating capability compared to conventional and segmented rotor switched reluctance motors. One of the main limiting performance indices of such motors for industrial applications is its high torque ripple. This paper proposes a 12/10/12 pole DSSRM with an angular shift of half of the stroke angle between inner and outer stators. The respective phase windings of the inner and outer stators are parallelly excited with the same phase angle shift to reduce the torque ripple. Each rotor segment is constructed with a pair of half rotor segments that are isolated from each other through the insertion of a non-magnetic isolator between them. Firstly, the design hypothesis for a low torque ripple DSSRM has been presented; thereafter, some geometric modifications have been suggested and investigated to obtain a nearby response in the proposed DSSRM. The calculation of the width of the non-magnetic isolator, modification in the pole height of outer stator and modification in the arc angles of rotor segments/stator poles are discussed in detail. The effectiveness of the proposed motor is investigated through a 2D finite-element modelling and simulation in ANSYS/MAXWELL software. Simulation results show that the torque ripple is significantly reduced by 74.9% in the proposed DSSRM compared to the baseline DSSRM.

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A Deadbeat Current Control Method for Switched Reluctance Motor

Cited by 5 publications

References 8 publications

An Analytic Method of Segmented PWM Duty Cycle for Switched Reluctance Motor

An Analytic Method of Segmented PWM Duty Cycle for Switched Reluctance Motor

Design Improvements in Double-stator Axial Flux Switched Reluctance Motor for Smoother Torque Profile

Finite Element Method Based Design and Analysis of a Low Torque Ripple Double-Stator Switched Reluctance Motor

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