用于压接IGBT动态测试平台的高储能密度电感

High Energy Storage Density Inductor for Crimping IGBT Dynamic Test Platform

压接型绝缘栅双极型晶体管(IGBT)器件因其独特的优势在我国输电领域发挥重大作用,但在获取其开关特性曲线的动态测试平台方面仍存在不足。在此将高储能密度电感(Brooks电感)应用到平台中,以优化测试平台。首先根据IGBT双脉冲测试回路要求计算电感值,通过仿真得到在电感工作频率范围内集肤效应的影响可忽略,并设计电感参数;然后基于ANSYS Maxwell建立模型进行仿真分析,计算电感值为751.69μH,符合设计要求;进而对电感进行加工制作,测量电感的阻抗特性并计算电感值、匝间电容等参数,同时对该电感进行了绝缘测试,提出该电感可应用于IGBT动态测试平台;最后将其接入动态测试平台中,分别进行高压小电流和低压大电流实验。经计算,所设计的高储能密度电感使平台得到优化并且其储能密度为原电感的56.28倍。

Press pack insulated gate bipolar transistor(IGBT) devices are widely used in this field due to their unique advantages and play a major role in China’s transmission field.At present,there are still some shortcomings in the dynamic test platform for obtaining its switching characteristic curve.High energy storage density inductance(Brooks inductance) is applied to the platform to optimize the test platform.Firstly,the inductance value is calculated according to the requirements of the IGBT double pulse test circuit.The influence of the skin effect in the operating frequency range of the inductor can be neglected and the inductance parameter is designed.Then the model is built based on ANSYS Maxwell for simulation analysis and the inductance value is calculated 751.69 μH,in line with the design requirements.Further processing the inductor,measuring the impedance characteristics of the inductor and calculating the inductance value,the interturn capacitance and other parameters,and at the same time the insulation test,the inductor can be applied to the IGBT dynamic test platform.Finally,it is connected to the dynamic test platform to perform high-voltage small current and low-voltage high-current experiments.After calculation,the high energy storage density inductor designed optimizes the platform and its energy storage density is 56.28 times that of the original inductor.