Four switches direct power control of BLDC motor with trapezoidal back-EMF

Hajiaghasi, Salman; Salemnia, Ahmad; Motabarian, Fateme

doi:10.1109/pedstc.2017.7910380

Cited by 6 publications

(2 citation statements)

References 8 publications

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“…By simplifying (12), (13) can be determined, which demonstrates the instantaneous current value in the (k + 1) th sampling interval. The predictive block in Figure 2b employs (13) in order to estimate the instantaneous current value in the (k + 1) th sampling instant.…”

Section: Principle Of the Proposed Strategymentioning

confidence: 99%

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Simplified model predictive current control of non-sinusoidal low power brushless DC machines

Eshkevari¹,

Torkaman²

2020

Turk J Elec Eng & Comp Sci

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Several strategies have been proposed to control nonsinusoidal brushless DC machines (BLDCMs). However, high electromagnetic torque ripple and current overshoots occur in commutation times, which are significant problems of those strategies such as for hysteresis current controllers. This paper proposes a model predictive strategy to solve the above issues. It is simple and straightforward. Moreover, it reduces the motor torque ripple significantly and improves the response rate of the control system to the load torque variation in comparison with the conventional technique. The torque varies smoothly, and the performance of the system at commutation time is improved by eliminating the adverse effects of commutation times on the machine's current and torque. This method also operates better than the conventional controller in medium switching frequencies. The novelty of this strategy is that it employs a model predictive strategy to realize the above claims. The real implementation possibility and performance of the controller are investigated by simulations for a 60-V/180-W/300-RPM BLDCM. This paper also compares the proposed current controller with the conventional controller. The results show that the torque ripple reduces 50%, and the brake and response times are improved.

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Section: Principle Of the Proposed Strategymentioning

confidence: 99%

“…All presented solutions can be developed for 4-switch 3-phase inverters [12,13]. A 4-switch inverter has fewer semiconductors than the traditional six-switch inverters, which reduces the overall cost of a BLDCM driver significantly [12].…”

Section: Introductionmentioning

confidence: 99%