Research on Active Thermal Control: Actual Status and Future Trends
Research on Active Thermal Control: Actual Status and Future Trends
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主动热控制研究：现状与未来趋势
DOI：
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发表时间：
2021
影响因子：
5.5
通讯作者：
R. D. De Doncker
中科院分区：
文献类型：
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作者：
Johannes Kuprat;Christoph H. van der Broeck;Markus Andresen;Sven Kalker;M. Liserre;R. D. De Doncker
集成电力电子转换器并将其器件利用率推向物理极限的趋势使器件的结温成为人们关注的焦点。功率密度的物理限制与最大结温和结温循环直接相关，这被认为是设备老化和最终故障的根本原因。因此，利用智能控制算法控制结温是提高未来转换器系统功率密度和使用寿命的一种有前途的方法。为了抓住这些机会，最近的研究提出了提高过载能力、减少热循环、平衡热应力和分担功率转换器热负载的方法。本文系统分析了这些方法的基本原理和主要目标，并讨论了它们的局限性和潜力。基于此讨论，它强调了重要的挑战，例如热状态变量提取、非线性老化以及最小化对系统运行的影响。未来的研究必须解决这些挑战，使主动热控制成为具有卓越功率密度和可靠性的智能功率转换器的关键推动因素。
The trend toward integrating power electronic converters and pushing their device utilization toward physical limits puts the spotlight on the junction temperature of the devices. The physical limits of power density are directly tied to the maximum junction temperature and junction temperature cycles that are considered as the root cause of the aging and, finally, the failure of the device. Therefore, manipulating the junction temperature with smart control algorithms is a promising method to enhance the power density and the lifetime of future converter systems. To address these opportunities, recent research proposed methods that increase the overload capability, reduce thermal cycles, balance thermal stress, and share thermal loading of power converters. This article systematically analyzes the fundamental principle and the key objective of these methods and discusses their limitations and potential. Based on this discussion, it highlights important challenges, such as thermal state variable extraction, nonlinear aging, and minimizing the impact on system operation. These challenges must be addressed by future research to make active thermal control a key enabler of a smart power converter with superior power density and reliability.