Review of accumulative failure of winding insulation subjected to repetitive impulse voltages  

作　　者：Potao Sun Wenxia Sima Xiongwei Jiang Dingfei Zhang Jiahui He Lian Ye 

机构地区：[1]State Key Laboratory of Power Transmission Equipment&System Security and New Technology,Chongqing University,Chongqing 400030,People's Republic of China [2]Department of Materials Science,College of Engineering Materials,Chongqing University,Chongqing 400030,People's Republic of China [3]Department of Electrical and Computer Engineering,University of Florida,Gainesville,FL 32611,USA

出　　处：《High Voltage》2019年第1期1-11,共11页高电压（英文）

基　　金：the National Natural Science Foundation of China(51707023);the National Basic Research Program(973 Program)(2015CB251003);the National Key R&D Program of China(2017YFB0902702);the China's Postdoctoral Science Fund(2017M622962);the Chongqing Postdoctoral Science Special Foundation(Xm2017197).

摘　　要：The premature failure phenomenon that occurs in solid insulation under the application of repetitive impulse voltages is known as the accumulative effect of impulse voltages on a solid dielectric.The accumulative failure of winding insulation is considered to be a core problem resulting from this phenomenon.The main problems include the accumulative failure of motor winding insulation under pulse-width modulation impulses and the accumulative failure of transformer winding insulation under the application of overvoltages,and these problems represent new challenges in the safe and stable operation of power grids.With regards to the above problems,this study reviews the results of recent research on the accumulative failure characteristics and mechanisms of winding insulation when subjected to repetitive impulse voltages.The challenges faced are discussed at the end of this study.

关 键 词：INSULATION WINDING DIELECTRIC 

分 类 号：O17[理学—数学]