电感储能型大电流毫秒级脉冲源研制  

Design of a High Current Inductive Pulsed Power Supply with Millisecond Pulse Width

作　　者：王延 张东东[1,2,3] 付荣耀 刘坤[1,2,3] 袁伟群 Wang Yan;Zhang Dongdong;Fu Rongyao;Liu Kun;Yuan Weiqun(Institute of Electrical Engineering Chinese Academy of Sciences,Beijing 100190 China;University of Chinese Academy of Sciences,Beijing 100049 China;Key Laboratory of Power Electronics and Power Drive Chinese Academy of Sciences,Beijing 100190 China)

机构地区：[1]中国科学院电工研究所,北京100190 [2]中国科学院大学电子电气与通信工程学院,北京100049 [3]中国科学院电力电子与电气驱动重点实验室,北京100190

出　　处：《电工技术学报》2020年第23期5025-5030,共6页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金面上资助项目(51577178)。

摘　　要：减小关断开关耐受电压和提高负载电流峰值是电感储能型脉冲功率电源研究的难点。基于绝缘栅双极型晶体管(IGBT)的结构特点,提出一种改进的meat grinder电路,采用大匝比的耦合电感线圈,并利用IGBT自身反并联二极管使电路自恢复过程自发进行,最终电路主体只用了两个IGBT构成电感储能型脉冲电源的拓扑。该拓扑降低了对开关管的控制要求,同时可以产生几十千安大电流,具有重频运行的潜力。该文对电路动态过程分阶段进行了详细的理论分析和电路仿真。仿真结果显示该电路可产生波形平滑、峰值较高的电流输出。基于仿真分析的拓扑,该文研制了4.61kJ的电感储能型脉冲功率电源,采用20:1的大匝比耦合电感线圈,并进行试验测试,负载电流峰值达到30.40kA,脉宽1.7ms,测试结果与预期结果吻合较好。Reducing the peak voltage of the shutdown switch and increasing the load current are considered as the difficult problems in the design of inductive pulsed power supply.Therefore,based on the structural characteristics of the insulated gate bipolar transistor(IGBT),the traditional meat grinder circuit was improved in this paper.By utilization of a large-ratio coupled inductor coils and a diode antiparalleling with the IGBT,the circuit achieved the ability of self-recovery.The improved inductive pulse power supply has only two IGBTs,which can reduce the control requirements of the switches and generate a large current with several tens of kiloamperes.Besides,it also has the potential of repetitive operation.In this paper,the dynamic process of the proposed circuit model was staged analyzed in detail.Learning from the simulation result,the proposed circuit has the advantage of smooth and high-peak current output.To demonstrate the effectiveness,the 4.61 kJ inductive pulsed power supply was designed where a 20:1 large variable ratio coupled inductor was adopted.Finally,the tested peak load current reached 30.40 kA with 1.7 ms pulse width,which was in good agreement with the expectation analysis.

关 键 词：电感储能 脉冲功率电源 大电流放电 meat grinder 

分 类 号：TM91[电气工程—电力电子与电力传动]