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Experimental verification of calculated IGBT losses in PFCs

机译:对PFC中计算出的IGBT损耗进行实验验证

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Measurements of insulated gate bipolar transistor (IGBT) losses in modulated converters present a difficult challenge because of the wide variations in the waveform. As an alternative, earlier references (1994, 1995) provided a means of calculating these losses from out-of-circuit test data, but no experimental verification was presented. To provide this verification, this present study compares these calculated losses with measured losses obtained from the temperature rise of the heat sink of the IGBT. These experimental results agree quite well with the earlier loss calculations, and the largest deviation for four test cases is less than 4%
机译:由于波形变化很大,因此在调制转换器中测量绝缘栅双极型晶体管(IGBT)的损耗提出了一个难题。作为替代方案,较早的参考文献(1994,1995)提供了一种根据电路外测试数据计算这些损耗的方法,但没有进行实验验证。为了提供验证,本研究将这些计算得出的损耗与从IGBT散热器的温度上升获得的测量损耗进行了比较。这些实验结果与早期的损耗计算非常吻合,四个测试用例的最大偏差小于4%

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