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电力变换器应用中组件间热相互作用分析

An Analysis of the Thermal Interaction Between Components in Power Converter Applications

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中文摘要

准确预测半导体器件温度对电力电子变换器设计至关重要。传统RC热模型在特定边界条件下具有一定预测能力,但难以满足可靠性分析的高精度要求。本文旨在通过分析组件间的热相互作用,提升热模型的准确性,为电力电子系统的可靠性设计提供理论支撑。

English Abstract

Accurately predicting the temperature of semiconductor devices is very important in the initial design of the power electronics converter. RC thermal models derived from the well-known methods have some ability to predict the temperature. However, the accuracy is boundary condition specific; hence, these methods cannot be used in the reliability analysis. To make the thermal model more accurate an...
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SunView 深度解读

热设计是阳光电源光伏逆变器(如组串式SG系列)及储能系统(如PowerTitan液冷系统)的核心竞争力。该研究提出的组件间热耦合分析方法,能有效优化功率模块的布局与散热设计,提升高功率密度产品在极端环境下的可靠性。建议研发团队将此分析方法集成至iSolarCloud智能运维平台的数字孪生模型中,通过更精准的结温监测,实现对逆变器及PCS核心器件寿命的实时预估与主动维护,从而降低全生命周期运维成本。