电器与能效管理技术 ›› 2022, Vol. 0 ›› Issue (2): 42-45.doi: 10.16628/j.cnki.2095-8188.2022.02.007

• 仿真技术应用 • 上一篇    下一篇

多通道SiC固态功率控制器热仿真及设计优化

赖耀康1, 王浩南2, 曹玉峰1, 王梓丞2, 叶雪荣2, 翟国富2   

  1. 1.北京市科通电子继电器总厂有限公司, 北京 100176
    2.哈尔滨工业大学 电器与电子可靠性研究所, 黑龙江 哈尔滨 150001
  • 收稿日期:2021-09-30 出版日期:2022-02-28 发布日期:2022-03-31
  • 作者简介:赖耀康(1984—),男,高级工程师,主要从事固态继电器、固态功率控制器研发。|王浩南(1998—),男,硕士研究生,研究方向为电力电子器件及系统可靠性。|曹玉峰(1982—),男,高级工程师,主要从事高可靠固态功率控制器和固态继电器研究。
  • 基金资助:
    装备发展部预研项目(31512040201-3)

Thermal Simulation and Design Optimization of Multi-Channel SiC Solid-State Power Controller

LAI Yaokang1, WANG Haonan2, CAO Yufeng1, WANG Zicheng2, YE Xuerong2, ZHAI Guofu2   

  1. 1. Beijing Keytone Electronic Relay Co.,Ltd.,Beijing 100176,China
    2. Electrical and Electronic Reliability Institute,Harbin Institute of Technology,Harbin 150001,China
  • Received:2021-09-30 Online:2022-02-28 Published:2022-03-31

摘要:

随着SiC MOSFET的发展,以该器件作为核心部分的多通道SiC固态功率控制器逐渐应用于高功率密度领域。由于其温升和极端环境温度更高,所以对产品的热管理需求也随之提升。因此,准确评估产品内部热分布是实现高性能多通道固态功率控制器设计的前提。以额定电压270 V,额定电流240 A的12路固态功率控制器为对象,分析其热失效机理,建立简化有限元模型。分别对120 A、180 A降额工作情况进行稳态与瞬态的热仿真及验证。对240 A满载工作情况进行热仿真,根据仿真结果及实际情况做出热设计优化。最后,进行优化产品的满载测试,验证热仿真及设计优化的正确性。

关键词: SiC, 固态功率控制器, 热失效机理, 热仿真, 设计优化

Abstract:

With the development of SiC MOSFET,the multi-channel SiC solid-state power controller with this device as the core part is gradually applied in the field of high-power density.Due to its higher temperature rise and extreme ambient temperature,the demand for thermal management of products has also increased.Therefore,an accurate assessment of the internal heat distribution of the product is a prerequisite for the design of a high-performance multi-channel solid-state power controller.This article took the 12-channel solid-state power controller with rated voltage of 270 V and rated current of 240 A as the object,analyzed its thermal failure mechanism,and established a simplified finite element model.The steady-state and transient thermal simulations and verifications of the 120 A and 180 A derating working conditions were carried out respectively.The thermal simulation on 240 A full-load working conditions was performed,and thermal design optimization was made based on the simulation results and actual conditions.Finally,the full-load test of the optimized product was carried out to verify the correctness of the thermal simulation and design optimization.

Key words: SiC, solid-state power controller, thermal failure mechanism, thermal simulation, design optimization

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