电力电子电路参数辨识新方法与故障预测算法研究

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说明：  研究了电力电子电路中关键元器件，如电解电容、功率 MOSFET、功率二极管、电感等的失效机理及故障模型，分析了能够表征元器件失效的故障特征参数，并确定特征参数的阈值；通过分析元器件及电路在退化过程中电路各输出参数的变化情况，定义输出电压偏移率作为表征电路性能退化的特征参数。(The failure mechanism and fault model of key components in power electronic circuits, such as electrolytic capacitors, power MOSFETs, power diodes, inductors, etc., are analyzed. The fault characteristic parameters that can characterize component failures are analyzed, and the thresholds of characteristic parameters are determined. The variation of the output parameters of the components during the degradation process of the components and circuits defines the output voltage offset rate as a characteristic parameter that characterizes the degradation of the circuit performance.)

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电力电子电路参数辨识新方法与故障预测算法研究.pdf, 3527944 , 2019-08-26