Behavioural SiC IGBT Modelling Using Non-Linear Voltage and Current Dependent Capacitances

Behavioural SiC IGBT Modelling Using Non-Linear Voltage and Current Dependent Capacitances
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使用非线性电压和电流相关电容进行 SiC IGBT 行为建模

DOI:
10.1109/dmc58182.2023.10412584
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发表时间:
2023
期刊:
--
影响因子:
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通讯作者:
Almpanis I
Almpanis I
中科院分区:
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文献类型:
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作者:
Almpanis I

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本文提出了一种行为碳化硅(SiC)IGBT模型,利用电压和电流相关的电容来模拟其开关特性,和一个电压相关的电流源来模拟静态特性。非线性电容是从动态电流-电压(IV)测量中提取的,消除了在高电压和高电流下对非标准电容-电压(C-V)表征方法的需要。紧凑型模型的准确性进行了比较,与以前验证的数值技术计算机辅助设计(TCAD)在广泛的操作条件下的模拟结果。通过准确预测27 kV SiC IGBT的独特特性(包括dV/dt、dI/dt和损耗),同时将仿真时间显著减少4-5个数量级,证明了模型的性能。此外,模型的收敛性进行了测试,使用降压转换器的拓扑结构与非理想的寄生元件。
This paper presents a behavioural silicon carbide (SiC) IGBT model that utilizes voltage and current dependent capacitances to simulate its switching characteristics, and a voltage dependent current source to simulate the static characteristics. The non-linear capacitances are extracted from dynamic Current-Voltage (IV) measurements, eliminating the need for non-standard Capacitance-Voltage (C-V) characterization methods under high voltage and high current. The accuracy of the compact model is compared with previously validated numerical Technology Computer Aided Design (TCAD) simulation results across a wide range of operational conditions. The model performance is demonstrated by accurately predicting the unique characteristics of a 27kV SiC IGBT, including dV/dt, dI/dt and losses, while significantly reducing the simulation time by 4–5 orders of magnitude. Additionally, the model convergence is tested using a buck converter topology with non-ideal parasitic elements.
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期刊: --
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