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高压高速电机通风与散热分析 被引量:4
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作者 姚丙雷 刘朋鹏 +1 位作者 王建辉 韦福东 《电机与控制应用》 2019年第8期70-75,共6页
针对YKS规格的高压高速电机单机容量高、局部温升大等特点,以1台YKS-560-23000kW规格的高压高速电机为例,依据电机实际尺寸,建立了电机端部绕组及定转子模型。采用有限元法对流体场与温度场进行了仿真,计算出电机运行时各个通风槽内冷... 针对YKS规格的高压高速电机单机容量高、局部温升大等特点,以1台YKS-560-23000kW规格的高压高速电机为例,依据电机实际尺寸,建立了电机端部绕组及定转子模型。采用有限元法对流体场与温度场进行了仿真,计算出电机运行时各个通风槽内冷却气体流动情况,并对电机整体进行流固耦合分析,得到高压电机端部绕组及定转子温度场分布。对仿真计算结果分析,并与样机试验数据比较,结果表明:流体场和温度场耦合的方法能够准确地了解YKS电机各个通风槽内的气体流动情况及电机内局部温升分布。 展开更多
关键词 高压高速电机 流体场 温度场 耦合分析
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Experimental Study of the Gas Triggered Switch's Breakdown by Optical Measurement
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作者 门涛 高景明 +1 位作者 刘列 文建春 《Chinese Physics C》 SCIE CAS CSCD 北大核心 2008年第z1期310-312,共3页
In this paper the main technical data of the high speed camera(HSFC-PRO),components of gas triggered switch and the primary experimental results of the breakdown of gas triggered switch using high speed camera are int... In this paper the main technical data of the high speed camera(HSFC-PRO),components of gas triggered switch and the primary experimental results of the breakdown of gas triggered switch using high speed camera are introduced.Four photographs totaling in 24 nanoseconds in single trigger mode manifest that the breakdown consists of two phases,which are the breakdowns of the trigger electrode with positive and negative electrode successively. This phenomenon is consist with the electric field distribution simulation result with the help of the software ANSYS. Eight photographs in double trigger mode prove that the breakdown time of the gas triggered switch is above 10.5 microseconds.The elementary results show that high speed camera is a very efficient apparatus to study the discharge characteristics.This optical measuring technique is helpful to profoundly study the breakdown of high voltage switch. More studies and experiments would be continued in future. 展开更多
关键词 high voltage triggered switch discharge spark high speed camera synchronized trigger
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