2.7MJ/m^3高储能密度脉冲电容器的研制  

Development of High Energy Density(2.7 MJ/m^3) Pulse Capacitor

作　　者：李化[1] 王文娟[1] 李智威[1] 李浩原 王博闻[1] 黄想 林福昌[1] 

机构地区：[1]华中科技大学电气与电子工程学院强电磁工程与新技术国家重点实验室,武汉430074

出　　处：《高压电器》2016年第3期69-73,80,共6页High Voltage Apparatus

基　　金：国家自然科学基金项目资助(51377070)~~

摘　　要：为了研制高储能密度电容器,文中对影响电容器性能的关键技术进行了研究。建立自愈平台进行自愈试验,发现提高电容器层间压强可以减小自愈能量,从而提高电容器寿命。通过对分割膜边缘自愈和膜中自愈进行研究,根据电容器的工作场强确定了高储电容器中分割模块数,选择合适的浸渍剂种能密度类及浸渍工艺,提高电容器在高场强下的运行可靠性。根据以上关键技术,研制出了储能密度2.7 MJ/m3的高储能密度脉冲电容器,在工作电压6.6 kV、放电电流11.85 k A下,其寿命为850次。In order to develop high energy density（HED） capacitor, the key technologies affecting the properties of capacitors were studied. A self-healing platform was constructed to conduct self-healing tests,and it was found that raising capacitor interlayer pressure could reduce the self-healing energy, thus improve the lifetime of capacitor. Based on the research on self-healing inside the film and on the edge of film, the number of segmented modules of the high energy density capacitor was determined according to the working field strength of the capacitor. Appropriate type of impregnant and impregnation processes were chosen to improve the operation reliability of capacitors under high field strength. Consequently, the pulse capacitor of high energy density（2.7 MJ/m^3） was developed, whose lifetime reaches 850 times under the voltage of 6.6 k V and discharging current of 11.85 k A.

关 键 词：脉冲电容器 储能密度 自愈特性 寿命 

分 类 号：TM53[电气工程—电器]