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首页> 外文期刊>Power Electronics, IET >Torque ripple and switching frequency reduction of interior permanent magnet brushless direct current motors using a novel control technique
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Torque ripple and switching frequency reduction of interior permanent magnet brushless direct current motors using a novel control technique

机译：使用新型控制技术的内部永磁无刷直流电动机的转矩脉动和开关频率降低

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摘要

Although interior permanent magnet brushless direct current (IPMBLDC) motors have higher torque and power density compared to surface-mounted PMBLDC motors, the reluctance torque of IPMBLDC motors generates higher torque ripples. This study introduces a new current waveform as a reference to control the IPM motors while keeping the total developed torque constant. It also helps to considerably reduce the torque ripple of the motors. The experimental results show that this method significantly reduces the damaging impact of the reluctance torque ripple without complicating computations or changing the stator and rotor structures of the motor. Additionally, the switching frequency and consequently switching losses are reduced using the proposed technique.
机译：尽管与表面安装的PMBLDC电动机相比，内部永磁无刷直流（IPMBLDC）电动机具有更高的转矩和功率密度，但IPMBLDC电动机的磁阻转矩会产生更高的转矩波动。这项研究介绍了一种新的电流波形，以作为控制IPM电动机的参考，同时保持总产生的转矩恒定。它还有助于大大减少电动机的转矩脉动。实验结果表明，该方法显着降低了磁阻转矩脉动的破坏性影响，而无需使计算复杂化或改变电动机的定子和转子结构。另外，使用所提出的技术减少了开关频率并因此减少了开关损耗。

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