中压船舶直流供电系统限流开断技术  

Current Limiting Breaking Technology of Medium Voltage DC Ship Power Supply System

作　　者：刘思奇 胡鹏飞[1] 江道灼[1] 庄劲武[2] Liu Siqi;Hu Pengfei;Jiang Daozhuo;Zhuang Jinwu(College of Electrical Engineering Zhejiang University, Hangzhou 310027 China;College of Electric Engineering Naval University of Engineering ,Wuhan 430033 China)

机构地区：[1]浙江大学电气工程学院,杭州310027 [2]海军工程大学电气工程学院,武汉430033

出　　处：《电工技术学报》2021年第S01期330-343,共14页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金青年资助项目(52007167)。

摘　　要：中压直流供电系统是未来船舶供电的一个典型应用场景,中压直流断路器则是保障该供电系统安全可靠运行的关键设备之一。船舶供电系统的阻抗小,故障电流及其上升率大,故要求直流断路器兼具故障限流与大容量开断功能。该文首先简述船舶供电系统的特点及直流故障的电流特性,然后重点介绍了基于固态开关分断技术的全固态直流断路器和混合型直流断路器的研究进展,分析了它们的优缺点,并对它们在中压船舶直流供电系统中的应用进行了工程和技术的可行性分析。最后对单向分断新型强迫换流原理的混合型断路器方案在10kV/5kA系统的应用进行了可行性分析,并对其工程应用需要攻克的难点及关键技术进行了展望。The medium voltage DC(MVDC)power system is a typical application scenario for ship power supply in the future,and the MVDC circuit breaker is one of the key equipment for ensuring the safe and reliable operation of the power supply system.The impedance of the ship's power supply system is small so that the fault current and its rise rate are high.Therefore,the DC circuit breaker is required to have both the function of fault current limiting and large interruption capacity.This paper first briefly discusses the DC fault characteristics of the ship's power supply system,and then introduces the research progress of solid-state DC circuit breakers and hybrid DC circuit breakers,and their advantages and disadvantages are analyzed.What’s more,engineering and technical feasibility analysis for applications in the ship's MVDC power supply system has carried out.Finally,the application feasibility analysis of a unidirectional improved artificial-current-zero hybrid circuit breaker in 10kV/5kA system is carried out and the difficulties and key technologies that need to be overcome in engineering applications are prospected.

关 键 词：中压船舶直流供电系统 固态直流断路器 混合型直流断路器 强迫换流 

分 类 号：TM561[电气工程—电器]