A maximum current sharing method for dual-redundancy brushless DC Motor control

Yan, Hao; Xu, Yongxiang; Zou, Jibin; Wang, Baochao; Jiang, Shanlin

doi:10.1109/icems.2014.7013634

Cited by 7 publications

(2 citation statements)

References 14 publications

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“…This leads to changes in the shape of currents in the winding sets, as well as to a further increase of the total electromagnetic torque ripple. This explains the additional, often specific, need for automatic control in closed-loop systems in order to equalize currents or electromagnetic torques of the modules in real drive systems, where the supply voltages of these modules are not equal to each other [39,40].…”

Section: Discussion Of the Obtained Resultsmentioning

confidence: 99%

Electromagnetic Torque Ripple in Multiple Three-Phase Brushless DC Motors for Electric Vehicles

Shchur

Jancarczyk

2021

Electronics

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This paper investigated an electromagnetic torque ripple level of BLDC drives with multiple three-phase (TP) permanent magnet (PM) motors for electric vehicles. For this purpose, mathematical models of PM machines of different armature winding sets-single (STP), dual (DTP), triple (TTP), and quadruple (QTP) ones of asymmetrical configuration and optimal angular displacement between winding sets were developed and corresponding computer models in the Matlab/Simulink environment were created. In conducted simulation, the influence of various factors on the electromagnetic torque ripple of the multiple-TP BLDC drives was investigated—degree of modularity, magnetic coupling between armature winding sets, and drive operation in open and closed-loop control systems. Studies have shown an increase of the electromagnetic torque ripple generated by one module in the multiple TP BLDC drives with magnetically coupled winding sets, due to additional current pulsations caused by magnetic interactions between the machine modules. However, the total electromagnetic torque ripples are much lower than in similar drives with magnetically insulated winding sets. Compared with the STP BLDC drive, the multiple TP BLDC drives with the same output parameters showed a reduction of the electromagnetic torque ripple by 27.6% for the DTP, 32.3% for the TTP, and 34.0% for the QTP BLDC drive.

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Section: Discussion Of the Obtained Resultsmentioning

confidence: 99%

Electromagnetic Torque Ripple in Multiple Three-Phase Brushless DC Motors for Electric Vehicles

Shchur

Jancarczyk

2021

Electronics

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“…In DTP electric machines, especially with asymmetric configuration (with the optimal angular shift between the modules of the stator winding), due to the existing of magnetic coupling between these modules, additional current pulsations are generated, which leads to corresponding ripples of the electromagnetic torque [9][10][11]18]. Such pulsations increase even more in the case of an unequal electrical load of two modules, which necessitates the use of special additional systems for equalizing their currents or electromagnetic torques [19,20]. In the DTP BLDCM, the traditional pulsations of currents associated with the low-frequency position switching of armature winding sets are also added to these ripples.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Experimental Investigation of Dual Three-Phase BLDC Motor Operation at Imbalanced Modular Loading

Shchur

Kharchyshyn²,

Turkovskyi

2023

Teh. elektrodin.

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Electric machines built according to the modular principle – with several three-phase windings on a stator – are a new direction of modern electromechanics, because they have a number of advantages compared to traditional single-winding machines. Among these benefits, the most important are increased efficiency and fault tolerance, which is especially important for self-powered electric vehicles. However, the presence of a mutual magnetic coupling between the modules, as well as their unequal electrical load, amplify the electromagnetic torque ripple inherent in one or another electric drive system. In this work, the electromagnetic torque ripples in a dual three-phase (DTP) brushless DC motor (BLDCM) under different loads of its modules were investigated for the cases of absence and presence of mutual magnetic coupling between armature winding sets and in the cases of the drive operation in open and closed control systems. The research was carried out by means of simulation in the Matlab/Simulink environment on a circular model of real mock-up sample of DTP permanent magnet machine developed based on the results of its magnetic field simulation using the finite element method. Adequacy of simulation results is confirmed by experimental investigation. The results of the DTP BLDCM simulation studies showed an increase in the relative electromagnetic torque ripples of individual modules due to both the presence of magnetic coupling between winding sets and the deviation from their equal loading. However, at the level of the whole DTP BLDCM, a significant mutual compensation the electromagnetic torque ripples of the modules is shown, especially if they are magnetically coupled. The presence of closed-loop control systems of individual modules significantly reduces the electromagnetic torque ripples caused by different loading of the modules, especially in the case of magnetically uncoupled modules. References 26, figures 7, tables 3.

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A fault tolerant control strategy for dual three-phase permanent magnet synchronous motor servo system based on frequency domain analysis

Liang

Kou

Liang

2016

2016 Eleventh International Conference on Ecological Vehicles and Renewable Energies (EVER)

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A maximum current sharing method for dual-redundancy brushless DC Motor control

Cited by 7 publications

References 14 publications

Electromagnetic Torque Ripple in Multiple Three-Phase Brushless DC Motors for Electric Vehicles

Electromagnetic Torque Ripple in Multiple Three-Phase Brushless DC Motors for Electric Vehicles

Simulation and Experimental Investigation of Dual Three-Phase BLDC Motor Operation at Imbalanced Modular Loading

A fault tolerant control strategy for dual three-phase permanent magnet synchronous motor servo system based on frequency domain analysis

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