An Experimental Assessment of the Impact of High dv/dt SiC Converters on Insulation Lifetime of Electrical Machines
An Experimental Assessment of the Impact of High dv/dt SiC Converters on Insulation Lifetime of Electrical Machines
复制标题
高 dv/dt SiC 转换器对电机绝缘寿命影响的实验评估
DOI：
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Xibo Yuan
中科院分区：
文献类型：
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作者：
D. Hewitt;S. Sundeep;Jiabin Wang;A. Griffo;M. Diab;Xibo Yuan
SiC mosfet能够在更高的直流链路电压下工作，具有更快的上升时间和更高的开关频率，在变换器馈电驱动器中变得越来越突出。虽然它们提供更高的功率密度和高效率，并改善了性能，但它们也导致机器绕组绝缘的电压应力显着增加。在本文中，在直流链路电压、上升时间和开关频率范围内的高温下，实验评估了基于SiC的变换器对市售2.8kW永磁电机绝缘寿命的影响。比较了这些样品和由硅基逆变器馈送的样品的寿命，从而研究了SiC逆变器的影响。具体的重点是在整个实验中监测的机器绕组内的局部放电（PD）活动的数量。结果表明，在测试过程中，PD的存在会导致绝缘寿命的显著降低。
SiC MOSFETs, capable of operating at higher dc link voltages with faster rise times and higher switching frequency, are becoming more prominent in converter-fed drives. While they offer higher power density and high efficiency with improved performance, they also result in significantly increased voltage stresses to the insulation of machine windings. In this paper, the impact of SiC based converters on the insulation lifetime of a commercially available 2.8kW permanent magnet machine is assessed experimentally at elevated temperatures under a range of dc link voltages, rise times and switching frequencies. The lifetime of these samples and samples fed by a Si based inverter are compared, allowing the impact of SiC inverters to be studied. Specific focus is given to the quantity of partial discharge (PD) activity within the machine windings monitored throughout the experiments. It is shown that presence of PD during tests lead to very significant reduction in insulation lifetime.
DOI：
10.1109/ecce44975.2020.9235940
发表时间：
2020-10
期刊：
2020 IEEE Energy Conversion Congress and Exposition (ECCE)
影响因子：
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作者：
F. Alvarez-Gonzalez;D. Hewitt;A. Griffo;Jiabin Wang;M. Diab;Xibo Yuan
通讯作者：
F. Alvarez-Gonzalez;D. Hewitt;A. Griffo;Jiabin Wang;M. Diab;Xibo Yuan
承受热循环应力的机器的使用寿命
DOI：
10.1109/ecce.2019.8913216
发表时间：
2019
期刊：
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影响因子：
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作者：
Griffo A
通讯作者：
Griffo A