大型干式潜水电机定子电场分布特性对绝缘的影响
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摘要
在干式潜水电机(800 kW/10 kV)的基础上建立定子槽部和绕组模型,通过有限元分析方法计算电场在槽部和绕组表面分布情况,进而分析定子绝缘性能,重点探讨了定子槽部绝缘层中气隙存在时的电场分布和定子绕组绝缘层中电场的分布情况,通过对仿真结果的分析为干式潜水电机定子绝缘优化设计提供理论依据。
The model of stator slot and winding according to the dry submersible motor was established to calculate the electric field distribution in the stator based on FEM which was used for analyzing insulation performance.The electric field distribution when air gap exists in the insulation layer of stator slots was discussed maily.The electric field distribution in the insulation layer of stator winding was researched,too.Through the analysis of simulation results we could draw some useful conclusions for the insulation optimization design of dry submersible motor.
The model of stator slot and winding according to the dry submersible motor was established to calculate the electric field distribution in the stator based on FEM which was used for analyzing insulation performance.The electric field distribution when air gap exists in the insulation layer of stator slots was discussed maily.The electric field distribution in the insulation layer of stator winding was researched,too.Through the analysis of simulation results we could draw some useful conclusions for the insulation optimization design of dry submersible motor.
引文
[1]李圣年.潜水电泵与泵用电动机修理[M].北京:机械工业出版社,2010.
[2]周凯,吴广宁.基于局部放电统计参量的脉冲电压下绝缘老化分析[J].电工技术学报,2008,23(4):6-12.
[3]张晓红,张亮.基于局部放电的矩阵分析大电机主绝缘的老化[J].中国电机工程学报,2002,22(5):94-98.
[4]刘念,谢驰,滕福生.基于FEM的大型发电机快速暂态过电压分析[J].高电压技术,2003,29(4):21-23.
[5]丁树业,孙兆琼,苗立杰,等.大型发电机主绝缘温度场数值研究[J].电机与控制学报,2010,14(7):53-58.
[6]鲍棋铭,高乃奎,马小琴,等.大型发电机主绝缘老化的热分析研究[J].中国电机工程学报,2003,23(7):99-106.
[7]BARTNIKAS R,MORIN R.Multi-stress aging ofstator bars with electrical,thermal,and mechanicalstresses as simultaneous acceleration factors[J].IEEE Transactions on Energy Conversion,2004,19(4):702-714.
[8]STEFAN G,JOSE M A,BIN L,et al.A survey ontesting and monitoring methods for stator insulationsystems of low-voltage induction machines focusing onturn insulation problems[J].IEEE Transactions onIndustrial Electronics,2008,55(12):4127-4136.
[9]ZHANG J,WANG S H,QIU J,et al.Finite elementanalysis and evaluation of stator insulation in highvoltage synchronous motor[J].IEEE Transactions onMagnetics,2012,48(2):955-958.
[10]郝艳捧.红外光谱法研究运行23年大电机定子绝缘中环氧的老化机理[J].电工技术学报,2008,23(3):19-23.
[11]乐波,张晓红,卢胜伟,等.电机定子线圈绝缘多因子老化特性的研究[J].高电压技术,2000,26(2):3-7.
[12]冯慈璋,马西奎.工程电磁场导论[M].北京:高等教育出版社,2008.
[13]胡宇达,邱家俊,卿光辉,等.大型汽轮发电机定子端部绕组整体结构的电磁振动[J].中国电机工程学报,2003,23(7):93-98.
[14]RANRAN L,ANTTI N L.End-winding vibrationscaused by steady-state magnetic forces in an inductionmachine[J].IEEE Transactions on Magnetics,2010,46(7):2665-2674.
[2]周凯,吴广宁.基于局部放电统计参量的脉冲电压下绝缘老化分析[J].电工技术学报,2008,23(4):6-12.
[3]张晓红,张亮.基于局部放电的矩阵分析大电机主绝缘的老化[J].中国电机工程学报,2002,22(5):94-98.
[4]刘念,谢驰,滕福生.基于FEM的大型发电机快速暂态过电压分析[J].高电压技术,2003,29(4):21-23.
[5]丁树业,孙兆琼,苗立杰,等.大型发电机主绝缘温度场数值研究[J].电机与控制学报,2010,14(7):53-58.
[6]鲍棋铭,高乃奎,马小琴,等.大型发电机主绝缘老化的热分析研究[J].中国电机工程学报,2003,23(7):99-106.
[7]BARTNIKAS R,MORIN R.Multi-stress aging ofstator bars with electrical,thermal,and mechanicalstresses as simultaneous acceleration factors[J].IEEE Transactions on Energy Conversion,2004,19(4):702-714.
[8]STEFAN G,JOSE M A,BIN L,et al.A survey ontesting and monitoring methods for stator insulationsystems of low-voltage induction machines focusing onturn insulation problems[J].IEEE Transactions onIndustrial Electronics,2008,55(12):4127-4136.
[9]ZHANG J,WANG S H,QIU J,et al.Finite elementanalysis and evaluation of stator insulation in highvoltage synchronous motor[J].IEEE Transactions onMagnetics,2012,48(2):955-958.
[10]郝艳捧.红外光谱法研究运行23年大电机定子绝缘中环氧的老化机理[J].电工技术学报,2008,23(3):19-23.
[11]乐波,张晓红,卢胜伟,等.电机定子线圈绝缘多因子老化特性的研究[J].高电压技术,2000,26(2):3-7.
[12]冯慈璋,马西奎.工程电磁场导论[M].北京:高等教育出版社,2008.
[13]胡宇达,邱家俊,卿光辉,等.大型汽轮发电机定子端部绕组整体结构的电磁振动[J].中国电机工程学报,2003,23(7):93-98.
[14]RANRAN L,ANTTI N L.End-winding vibrationscaused by steady-state magnetic forces in an inductionmachine[J].IEEE Transactions on Magnetics,2010,46(7):2665-2674.