无电抗器电容储能型脉冲功率电源  

Non-Inductor Capacitive Pulsed Power Supply

作　　者：叶文怡 徐伟东[1,2] 付荣耀[1,2] 徐蓉[1,2] 严萍[1,2] Ye Wenyi;Xu Weidong;Fu Rongyao;Xu Rong;Yan Ping(Institute of Electrical Engineering Chinese Academy of Sciences,Beijing 100190,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》2023年第6期1564-1570,共7页Transactions of China Electrotechnical Society

摘　　要：电容储能型脉冲功率电源是目前特种直线电机系统主要选用的电源类型。现阶段脉冲功率电源小型化、轻量化的研究均着重于提升各器件的自身性能,短期内难以实现储能密度的大幅提升。该文针对感性负载开展无电抗器电容储能型脉冲功率电源研究,进一步提高电源的小型化、轻量化指标,推导和研究晶闸管导通时延抖动所带来的影响,分析该型电源安全运行的触发方式与匹配负载,并通过试验进行对比和验证。结果表明:无电抗器电容储能型脉冲功率电源可提升储能密度,具备小型化和轻量化的潜力;同步触发是实现无电抗器电容储能型电源系统可靠运行的条件,需要重点关注该型电源工作的抖动性;通过理论和实验,分析和验证了抖动对该型电源所带来的影响,具有指导意义。The capacitive pulse power supply(CPPS)is the first choice of pulse power systems for special linear motors.As researches progress ever further,higher requirements for the energy density,volume and mass of the CPPS need to be addressed properly in order to be suitable to the engineering application.Researches on the miniaturization and lightweight of the CPPS have focused on the high energy density capacitors,which is rather difficult to achieve a substantial improvement in the near future.The topology of the CPPS,determined by characteristics of pulse power loads,is also strongly linked to the energy density.In this paper,the non-inductor capacitive pulse power supply(NICPPS)is proposed.The NICPPS is the topological optimization on the basis of the traditional CPPS,and provides an achievable approach to realize miniaturization and lightweight in the synchronous triggering mode.However,in the real engineering environment,the pulse forming units(PFUs)cannot discharge synchronously in an ideal way.The impact of the jitter caused by thyristers’turn-on delay in the NICPPS must be considered.The range of the jitter is at microsecond or sub-microsecond levels,which is rather shorter compared to the electromagnetic launching process at millisecond levels.Three assumptions based on the jitter of microsecond or sub-microsecond levels are proposed.(1)The parameters of the load are constant rather than varying with the displacement of the armature.(2)The initial voltage of capacitors is equal to the charging voltage.(3)The initial current of inductors is equal to its first order Taylor expansion.Based on three assumptions,the circuit including the NICPPS and the load is analyzed.In the circuit analyses,the PFUs are divided into several modules according to the conduction time of thyristors.The Tk(k=0,1,2,􀀢)module contains the PFUs where the conduction of thyrister is at Tdk,and its corresponding number of PFUs is Mk.The T0 module,which includes first triggered thyristors,has the maximum current rise rate among the whol

关 键 词：电容储能型脉冲功率电源 小型化 轻量化 导通时延抖动 无电抗器 

分 类 号：TM833[电气工程—高电压与绝缘技术]