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全桥电力电子变压器的损耗研究

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摘要 电力电子变压器(Power Electronic Transformer,PET)作为电力电子技术的核心元器件之一,因其简单可控、体积质量较小等优点,已经越来越多地被应用在电力系统领域。然而,为减小器件体积,PET需运行在高频率下,其运行损耗会随着频率的升高而不断增加。变压器铁芯损耗过大一方面会导致设备的寿命缩短,增加系统的运行成本;另一方面也会导致系统电能传输的效率下降。因此,如何在不影响PET电压转换和电能传输两大功能的基础上,计算开关器件和变压器损耗,是目前研究的热点与重心。现针对变换器损耗计算问题,对变换器中各个部分的损耗产生进行了原理分析。
出处 《机电信息》 2020年第30期44-45,共2页
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