输入电压波形对无刷直流电机电流-转矩比的影响

2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC) Pub Date : 2021-04-25 DOI:10.1109/PEMC48073.2021.9432604

J. Stejskal, M. Chomat

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引用次数: 1

摘要

分析了输入电压波形对三相无刷直流电机性能的影响。分析中采用了六步控制和V/Hz控制，重点分析了时间谐波。该方案展示了如何在供电电压中使用更高的时间谐波来提高无刷直流电机的电流-转矩比。对具有高反电动势谐波畸变的三角连接和星形连接无刷直流电机进行了仿真。理论结果与实验结果进行了比较。

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Influence of Input-Voltage Waveform on Current-Torque Ratio of Brushless DC Motors

This paper analyzes the influence of input-voltage waveform on the performance of a three-phase brushless DC (BLDC) motor. The six-step control and the V/Hz control are used in the analysis with focus on time harmonics. The solution shows how to use higher time harmonics in the supply voltage to increase the current-torque ratio of BLDC motors. The simulation is made for both delta- and star-connected BLDC motors with high harmonic distortion of its back electromotive force (BEMF). The theoretical results are compared with experimental measurements.

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2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC)

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