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[高分] High temperature polymer capacitor film with high dielectric constant
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High temperature polymer capacitor film with high dielectric constant 作者： Shihai Zhang, C Zhou, Xin Zhou, Douglas Kushner DOI: 关键词: 摘要:Power electronics are a key technology for hybrid and plug-in electric drive vehicles (EDV) and represent 20% of the material costs. DC bus capacitors are one of the critical components in EV power inverters and they can occupy~ 35% of the inverter volume, contribute to~ 23% of the weight, and add~ 25% of the cost.[1] Due to the high ripple current and capacitor equivalent series resistance (ESR), DC bus capacitors experience significant internal heating during operation and appropriate cooling system must be used to control the capacitor temperature to prevent thermal runaway. Current commercial polypropylene (PP) film DC capacitors cannot be reliably operated above 105 C |
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(2025-6-4)
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