改进的SiC MOSFET电机控制器效率测试方法

Q4 Engineering
Wei Wang, Q. Song, Yiting Li, Mukhtiar Ahmad
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引用次数: 1

摘要

传统的测量方法对电机控制器效率的评估不准确,在实际测试实验中,测量效率值可达100%以上。针对这一问题,本文提出了一种改进的电机控制器效率电测量方法,该方法是通过分析电机控制器的功率损耗分布和相电流来建立的。结果表明,SiC MOSFET芯片是电机控制器中主要的功率损耗器件,占总功率损耗的93.1%以上。仿真结果与传统方法的精度进行了比较。结果表明,传统方法的效率测试误差在0.094% ~ 1.911%之间波动较大。与传统方法相比,该方法的测试误差小于0.083%,为电机控制器效率测试与设计提供了重要的指导。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Improved Efficiency Test Method for the Motor Controller with SiC MOSFETs
The traditional measurement method was inaccurate to evaluate the motor controller efficiency, which the measurement efficiency value could be more than 100% in practical testing experiments. To deal with this issue, an improved electrical measurement method for the motor controller efficiency is proposed in this paper, which is established by analyzing the power loss distribution and phase currents of the motor controller. It is demonstrated that the SiC MOSFET chips are the main power loss devices in the motor controller, accounting for more than 93.1% of the total power loss. The accuracy of the proposed method is compared with the traditional method in simulation. It shows that the test error of the efficiency obtained by the traditional method fluctuates on a large scale, which varied from 0.094% to 1.911%. Compared with the traditional method, the test error of the proposed method appears to be less than 0.083%, which provides significant guidance for the motor controller efficiency test and design.
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CiteScore
1.10
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