基于GaN的3.5kVA单相逆变电源研制  

Development of 3.5 kVA Single Phase Inverter Power Supply Based on GaN

作　　者：程存欣 石运卓 许明夏 CHENG Cun-xin;SHI Yun-zhuo;XU Ming-xia(Technology Center,CRRC Dalian Electric Traction R&D Center Co.,Ltd.,Dalian 116022,China)

机构地区：[1]中车大连电力牵引研发中心有限公司,辽宁大连116022 [2]动车组和机车牵引与控制国家重点实验室,辽宁大连116022

出　　处：《电力电子技术》2021年第8期16-20,27,共6页Power Electronics

摘　　要：为了满足动车组列车对车辆设备轻量化的要求,研制一种容量为3.5 kVA的自然散热型车载单相逆变电源,并对其散热器的散热性能进行系统分析以提高该电源的散热效率从而降低工作温度以保证系统的可靠性。首先,基于热损耗理论、计算器件的功率损耗;然后,运用热分析软件ICEPAK对散热器翅片的厚度、高度、间距和基板厚度进行参数化仿真,再综合该电源结构强度和重量以确定散热器结构的最佳方案;最后,按照车载单相逆变电源设计容量和最优散热器结构加工样机进行温升和输出性能测试。实验结果表明,该电源的仿真温度与实验温度的误差在7%以内,证明了结构优化的合理性和数值模拟的可行性,同时稳定的、高品质的电源输出特性验证了电气系统和散热系统的可靠性。In order to meet the requirements of EMU for lightening the vehicle equipment,a 3.5 kVA natural heat dissipation single phase inverter power supply is developed,and the heat dissipation performance of its radiator is analyzed systematically to improve the heat dissipation efficiency of the power supply,so as to reduce the working temperature and ensure the reliability of the system.Firstly,based on the heat loss theory,the power loss of the device is calculated,then,the thickness,height,spacing and substrate thickness of the radiator fin are simulated by ICEPAK,and then the optimal scheme of the radiator structure is determined by combining the strength and weight of the power supply structure,finally,the design capacity of the vehicle single phase inverter power supply and the optimal radiator structure are processed to test temperature rise and output performance.The experimental results show that the error between the simulation temperature and the experimental temperature is less than 7%,which proves the rationality of the structure optimization and the feasibility of numerical simulation.Meanwhile,the stable and high-quality output characteristics of the power supply verify the reliability of the electrical system and the cooling system.

关 键 词：单相逆变电源 散热器 输出性能 

分 类 号：TM911[电气工程—电力电子与电力传动]