A novel predicted current control scheme of BLDCMs for commutation torque ripple reduction

Park, JunHwi; Kwak, Yunchang; Ahn, Jin-Woo; Lee, Dong-Hee

doi:10.1109/icems.2015.7385263

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…Where, τ = L/R is the electromagnetic time constant. According to (10), (11), one can get an approximate expression of phase current…”

Section: Commutation Timementioning

confidence: 99%

“…Many control strategies, such as current feedback regulation [7] , overlapping commutation [8] , PWM chopper [9] , current predictive control [10] , torque closed-loop control [11] , are proposed to suppress the torque ripple. The current feedback regulation is a method to control the noncommutation phase current and keep it unchanged during the commutation, it achieves a better effect at low speed, but not well at high speed.…”

Section: Introductionmentioning

confidence: 99%

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Commutation Torque-ripple Minimization for Brushless DC Motor Based on Quasi-Z-Source Inverter

Xun

Liu

2018

2018 XIII International Conference on Electrical Machines (ICEM)

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Conventional brushless DC Motor (BLDCM) drive involves a voltage-source inverter with six-step squarewave control, which can be widely used in automated industrial applications. However, high torque ripple due to different current slew rates during the commutation interval would significantly reduce the performance in the high-precision area. To tackle this problem, the paper proposes a novel strategy to reduce the commutation torque-ripple by using a quasi-Z-source inverter. In which, an impedance network is implemented between the power supply and the voltage-source inverter. This could make the equivalent DC-link voltage boosted during the commutation interval to compensate the current dip of commutation phase, and keep incoming and outgoing phase current changing at the same rate. In Matlab/Simulink environment, proposed scheme is developed and simulated. Finally, the effectiveness of the proposed control strategy is validated, the torque ripple can be greatly reduced and with the increased average torque.

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“…Where, τ = L/R is the electromagnetic time constant. According to (10), (11), one can get an approximate expression of phase current…”

Section: Commutation Timementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Commutation Torque-ripple Minimization for Brushless DC Motor Based on Quasi-Z-Source Inverter

Xun

Liu

2018

2018 XIII International Conference on Electrical Machines (ICEM)

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Evaluation of Predictive Current Control Techniques for PM BLDC Motor in Stationary Plane

Trivedi

Keshri

2020

IEEE Access

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In general, PM BLDC motors are injected with square wave phase currents through PI-PWM control in a-b-c reference plane to ensure maximum torque-per-ampere. The operation of PM BLDC motor in a stationary plane has shown considerable simplification in design, and analysis in the control techniques. The present paper considers the injection of square wave phase current through predictive current control strategies in the stationary plane. For the evaluation of performance, cases of deadbeat predictive control, hysteresis based predictive control, and finite control-set model predictive control (FCS-MPC) methods are considered. Control schemes have been designed for 48V, 660W PM BLDC motor. Comparative evaluation is carried out in terms of the harmonic components available in the current and torque, tracking of the current trajectory in the stationary plane in the low and high-speed region, and execution time of all the control methods. Considered predictive methods are tested on an experimental prototype, and control is implemented through digital Signal Processor (DSP) TMS320F28335. Evaluation leads to the conclusion that predictive control performs better than PI-PWM for reducing commutation torque ripple, keeping current harmonics under control. It is observed that predictive control strategies in the stationary plane, improve the torque-speed characteristic to the wider utilization of constant torque zone of operation as compared to conventional strategies.

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Dynamic Compensation Control of Current Vector Synchronous Rotation for BLDCM

Tan

Zhao

Chen

et al. 2018

2018 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)

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A novel predicted current control scheme of BLDCMs for commutation torque ripple reduction

Cited by 4 publications

References 9 publications

Commutation Torque-ripple Minimization for Brushless DC Motor Based on Quasi-Z-Source Inverter

Commutation Torque-ripple Minimization for Brushless DC Motor Based on Quasi-Z-Source Inverter

Evaluation of Predictive Current Control Techniques for PM BLDC Motor in Stationary Plane

Dynamic Compensation Control of Current Vector Synchronous Rotation for BLDCM

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