Abstract

In the course of the operation of power transistor converters of electric energy, various emergency situations are possible, e.g., a short circuit in the load circuit. The rate of increase in the short-circuit current and its amplitude are affected by the parameters of electric circuit (inductance, power supply voltage of the inverter, control voltage across the gate), as well as by the properties of transistors. A method for preliminary estimation of the short-circuit current and rate of its increase at the stage of designing a converter has been suggested in the paper. This method is based on the theory of planning a multifactor experiment. Calculations of the aforementioned parameters for an inverter with the given technical characteristics have been carried out. A comparison of the results of calculation and physical layout has shown that the suggested approach can be used in the design of any electric energy converters in power semiconductor devices.

中文翻译：

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晶体管逆变器中的短路电流对电路参数的依赖性

摘要

在电能的功率晶体管变换器的运行过程中，可能发生各种紧急情况，例如负载电路中的短路。短路电流的增加速率及其幅度受电路参数（电感，逆变器电源电压，栅极两端的控制电压）以及晶体管特性的影响。本文提出了一种在转换器设计阶段对短路电流及其增加速率进行初步估计的方法。该方法基于计划多因素实验的理论。对于具有给定技术特征的逆变器，已经进行了上述参数的计算。