低气压对棒-板间隙工频放电特性影响研究
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摘要
为研究低气压对棒-板间隙工频放电特性影响,利用低气压放电试验平台对1~20 kPa气压范围内200~500 mm棒-板间隙工频放电进行了试验研究,分析了工频50%击穿电压U_(50%)与气压P及间隙距离d的关系;以及气压对放电通道外形的影响。研究结果表明:在1~20 kPa气压范围内不同间隙距离下U_(50%)-P曲线均有饱和趋势,开始出现饱和趋势的拐点随间隙距离增大向低气压方向移动且拐点处击穿电压U_(50%)和间隙距离与气压乘积Pd之间存在函数关系。随气压升高放电通道由低亮度"间断状"逐渐收细、变亮为高亮度"连续状",曲折现象逐渐显著。研究成果为进一步开展低气压下长间隙放电研究提供参考。
To research the effects of low pressure condition on AC discharge characteristics of rod-plane gap,laboratory investigations of AC discharge performance was carried out in the test system for 200 ~ 500 mm rod-plane gaps within 1 ~ 20 kPa,and analyzed the relationship between 50% AC discharge voltage U_(50%)and pressure P as well as gap length d,and how pressure affects on the appearance of discharge channel. The results show that,within 1 ~ 20 k Pa,U_(50%)-P curves of different gaps all have saturation trends,and the inflection point moves left with the increases of gap length. There is a functional relationship between U_(50%)and Pd at the inflection point.With the increases of pressure,the discharge channel changes from low brightness and discontinuous shape to thin,high brightness and continuous shape,and the characteristic of zigzag is more remarkable. These results have reference value for the further study of long gap discharge under low pressure.
To research the effects of low pressure condition on AC discharge characteristics of rod-plane gap,laboratory investigations of AC discharge performance was carried out in the test system for 200 ~ 500 mm rod-plane gaps within 1 ~ 20 kPa,and analyzed the relationship between 50% AC discharge voltage U_(50%)and pressure P as well as gap length d,and how pressure affects on the appearance of discharge channel. The results show that,within 1 ~ 20 k Pa,U_(50%)-P curves of different gaps all have saturation trends,and the inflection point moves left with the increases of gap length. There is a functional relationship between U_(50%)and Pd at the inflection point.With the increases of pressure,the discharge channel changes from low brightness and discontinuous shape to thin,high brightness and continuous shape,and the characteristic of zigzag is more remarkable. These results have reference value for the further study of long gap discharge under low pressure.
引文
1刘浩,刘尚合,魏明,等.高空低气压电晕放电特性模拟试验研究.高电压技术,2015;41(5):1704-1708Liu H,Liu S H,Wei M,et al.Research of corona discharge characteristics for low pressure at high altitude based on simulation experiments.High Voltage Engineering,2015;41(5):1704-1708
2刘浩,刘尚合,曹鹤飞,等.高空低气压、低温环境下的电晕放电模拟试验系统.高电压技术,2015;41(2):578-583Liu H,Liu S H,Cao H F,et al.Experimental simulation system of corona discharges under high-altitude,low-pressure and lowtemperature conditions.High Voltage Engineering,2015;41(2):578-583
3丁玉剑,李庆峰,廖蔚明,等.高海拔地区典型长空气间隙的操作冲击放电特性和海拔校正.高电压技术,2013;39(6):1441-1446Ding Y J,Li Q F,Liao W M,et al.Switching impulse discharge characteristics and altitude corrections for typical long air gaps at high altitude areas.High Voltage Engineering,2013;39(6):1441-1446
4郝艳捧,毛长庚,王国利,等.高海拔地区复合绝缘子先导发展法闪络判据.中国电机工程学报,2012;32(34):158-164Hao Y P,Mao C G,Wang G L,et al.Flashover criterion based on the leader propagation model of composite insulators in high-altitude areas.Proceedings of the CSEE,2012;32(34):158-164
5律方成,秦春旭,郭文义,等.高海拔地区±800 k V特高压直流输电系统绝缘子带电自然积污特性.高电压技术,2013;39(3):513-519LüF C,Qin C X,Guo W Y,et al.Natural contamination deposited characteristics of±800 k V UHV DC insulators at high altitudes.High Voltage Engineering,2013;39(3):513-519
6杨庆,董岳,叶轩,等.高海拔地区500 k V输电线路用复合绝缘子与并联间隙的绝缘配合.高电压技术,2013;39(2):407-414Yang Q,Dong Y,Ye X,et al.Insulating coordination between composite insulator and parallel gap device of 500 k V transmission line at high altitude area.High Voltage Engineering,2013;39(2):407-414
7王磊,苏杰,谷山强,等.高海拔长绝缘子串并联间隙雷电冲击放电特性及其失效性.高电压技术,2014;40(5):1365-1373Wang Lei,Su Jie,Gu Shanqiang,et al.Lightning impulse discharge characteristics and invalidation of long insulator strings with parallel gap at high altitude area.High Voltage Engineering,2014;40(5):1365-1373
8司马文霞,叶轩,谭威,等.高海拔220 k V输电线路绝缘子串与并联间隙雷电冲击绝缘配合研究.中国电机工程学报,2012;32(10):168-176Sima Wenxia,Ye Xuan,Tan Wei,et al.Lightning insulating coordination between insulator string and parallel gap device of 220 k Vtransmission line at high altitude area.Proceedings of the Chinese Society of Electrical Engineering,2012;32(10):168-176
9 Kojima H,Ishida M,Hayakawa N,et al.Partial discharge characteristics and mechanisms in consideration of charge behavior on alumina dielectrics under AC voltage in vacuum.International Conference on Electric Power Equipment,2013;10(2):20-23
10 Kojima H,Ishida M,Hayakawa N,et al.Charge behavior and partial discharge characteristics on alumina dielectrics under ACvoltage application in vacuum.Proceedings-International Symposium on Discharges and Electrical Insulation in Vacuum,ISDEIV,2012;45(7):68-71
11 Kojima H,Aoki K,Hayakawa N,et al.Partial discharge in vacuum on insulator surface under AC voltage application.International Conference on Electric Power Equipment-Switching Technology.IEEE,2011:521-524
12孟晓波,惠建峰,卞星明,等.低气压下流注放电特性的研究.中国电机工程学报,2011;31(25):139-149Meng X B,Hui J F,Bian X M,et al.Research on the characteristic of streamer discharge at low air pressure.Proceedings of the CSEE,2011;31(25):139-149
13杨皓麟,张福增,赵锋,等.高海拔地区±800 k V复合支柱绝缘子直流污闪特性.高电压技术,2009;35(4):749-754Yang H L,Zhang F Z,Zhao F,et al.DC Flashover performance of±800 k V composite post insulator in high altitude area.High Voltage Engineering,2009;35(4):749-754
14张福增,李锐海,王国利,等.高海拔特高压线路绝缘子的直流污闪特性.南方电网技术,2011;5(1):29-32Zhang F Z,Li Ruihai,Wang G L,et al.The DC pollution flashover characteristics of UHV transmission line insulators at high altitude.Southern Power System Technology,2011;5(1):29-32
15于昕哲,周军,刘博,等.全尺寸超、特高压交流绝缘子串的覆冰闪络特性.高电压技术,2013;39(6):1454-1459.Yu Xinzhe,Zhou J,Liu B,et al.Icing flashover characteristic of full-scale EHV and UHV AC insulator strings.High Voltage Engineering,2013;39(6):1454-1459
16张志劲,蒋兴良,孙才新,等.低气压下长串绝缘子的直流污闪特性.高电压技术,2009;35(2):299-303Zhang Z J,Jiang X L,Sun C X,et al.DC pollution flashover performance of long string of insulators in low atmosphere pressure circumstance.High Voltage Engineering,2009;35(2):299-303
17 Nakano Y,Kojima H,Hayakawa N,et al.Pre-discharge and flashover characteristics of impulse surface discharge in vacuum.Dielectrics&Electrical Insulation IEEE Transactions on,2014;21(1):403-410
18 Nakano Y,Kojima H,Hayakawa N,et al.Development process of impulse surface discharge in vacuum.Proceedings-international Symposium on Discharges and Electrical Insulation in Vacuum,ISDEIV,2012:125-128
19蒋兴良,于亮,胡建林,等.棒-板长空气间隙在低气压下雷电冲击特性及电压校正.中国电机工程学报,2005;25(11):152-156.Jiang X L,Yu Liang,Hu Jianlin,et al.Lightning impuls discharge performance and voltage correction of long air gaps at lowe atmospheric pressure.Proceedings of the Chinese Society o Electrical Engineering,2005;25(11):152-156
20孙才新,蒋兴良,司马文霞,等.海拔4 000 m以上短间隙交流放电特性及电压校正.中国电机工程学报,2002;22(10):116-120Sun C X,Jiang X L,Sima W X,et al.Ac discharge performanc and voltage correction of short air gaps in 4 000 m and above altitud districts.Proceedings of the CSEE,2002;22(10):116-120
21杨津基.气体放电.北京:科学出版社,1983:236-244Yang J J.Gas discharge.Beijing:Science Press,1983:236-244
2刘浩,刘尚合,曹鹤飞,等.高空低气压、低温环境下的电晕放电模拟试验系统.高电压技术,2015;41(2):578-583Liu H,Liu S H,Cao H F,et al.Experimental simulation system of corona discharges under high-altitude,low-pressure and lowtemperature conditions.High Voltage Engineering,2015;41(2):578-583
3丁玉剑,李庆峰,廖蔚明,等.高海拔地区典型长空气间隙的操作冲击放电特性和海拔校正.高电压技术,2013;39(6):1441-1446Ding Y J,Li Q F,Liao W M,et al.Switching impulse discharge characteristics and altitude corrections for typical long air gaps at high altitude areas.High Voltage Engineering,2013;39(6):1441-1446
4郝艳捧,毛长庚,王国利,等.高海拔地区复合绝缘子先导发展法闪络判据.中国电机工程学报,2012;32(34):158-164Hao Y P,Mao C G,Wang G L,et al.Flashover criterion based on the leader propagation model of composite insulators in high-altitude areas.Proceedings of the CSEE,2012;32(34):158-164
5律方成,秦春旭,郭文义,等.高海拔地区±800 k V特高压直流输电系统绝缘子带电自然积污特性.高电压技术,2013;39(3):513-519LüF C,Qin C X,Guo W Y,et al.Natural contamination deposited characteristics of±800 k V UHV DC insulators at high altitudes.High Voltage Engineering,2013;39(3):513-519
6杨庆,董岳,叶轩,等.高海拔地区500 k V输电线路用复合绝缘子与并联间隙的绝缘配合.高电压技术,2013;39(2):407-414Yang Q,Dong Y,Ye X,et al.Insulating coordination between composite insulator and parallel gap device of 500 k V transmission line at high altitude area.High Voltage Engineering,2013;39(2):407-414
7王磊,苏杰,谷山强,等.高海拔长绝缘子串并联间隙雷电冲击放电特性及其失效性.高电压技术,2014;40(5):1365-1373Wang Lei,Su Jie,Gu Shanqiang,et al.Lightning impulse discharge characteristics and invalidation of long insulator strings with parallel gap at high altitude area.High Voltage Engineering,2014;40(5):1365-1373
8司马文霞,叶轩,谭威,等.高海拔220 k V输电线路绝缘子串与并联间隙雷电冲击绝缘配合研究.中国电机工程学报,2012;32(10):168-176Sima Wenxia,Ye Xuan,Tan Wei,et al.Lightning insulating coordination between insulator string and parallel gap device of 220 k Vtransmission line at high altitude area.Proceedings of the Chinese Society of Electrical Engineering,2012;32(10):168-176
9 Kojima H,Ishida M,Hayakawa N,et al.Partial discharge characteristics and mechanisms in consideration of charge behavior on alumina dielectrics under AC voltage in vacuum.International Conference on Electric Power Equipment,2013;10(2):20-23
10 Kojima H,Ishida M,Hayakawa N,et al.Charge behavior and partial discharge characteristics on alumina dielectrics under ACvoltage application in vacuum.Proceedings-International Symposium on Discharges and Electrical Insulation in Vacuum,ISDEIV,2012;45(7):68-71
11 Kojima H,Aoki K,Hayakawa N,et al.Partial discharge in vacuum on insulator surface under AC voltage application.International Conference on Electric Power Equipment-Switching Technology.IEEE,2011:521-524
12孟晓波,惠建峰,卞星明,等.低气压下流注放电特性的研究.中国电机工程学报,2011;31(25):139-149Meng X B,Hui J F,Bian X M,et al.Research on the characteristic of streamer discharge at low air pressure.Proceedings of the CSEE,2011;31(25):139-149
13杨皓麟,张福增,赵锋,等.高海拔地区±800 k V复合支柱绝缘子直流污闪特性.高电压技术,2009;35(4):749-754Yang H L,Zhang F Z,Zhao F,et al.DC Flashover performance of±800 k V composite post insulator in high altitude area.High Voltage Engineering,2009;35(4):749-754
14张福增,李锐海,王国利,等.高海拔特高压线路绝缘子的直流污闪特性.南方电网技术,2011;5(1):29-32Zhang F Z,Li Ruihai,Wang G L,et al.The DC pollution flashover characteristics of UHV transmission line insulators at high altitude.Southern Power System Technology,2011;5(1):29-32
15于昕哲,周军,刘博,等.全尺寸超、特高压交流绝缘子串的覆冰闪络特性.高电压技术,2013;39(6):1454-1459.Yu Xinzhe,Zhou J,Liu B,et al.Icing flashover characteristic of full-scale EHV and UHV AC insulator strings.High Voltage Engineering,2013;39(6):1454-1459
16张志劲,蒋兴良,孙才新,等.低气压下长串绝缘子的直流污闪特性.高电压技术,2009;35(2):299-303Zhang Z J,Jiang X L,Sun C X,et al.DC pollution flashover performance of long string of insulators in low atmosphere pressure circumstance.High Voltage Engineering,2009;35(2):299-303
17 Nakano Y,Kojima H,Hayakawa N,et al.Pre-discharge and flashover characteristics of impulse surface discharge in vacuum.Dielectrics&Electrical Insulation IEEE Transactions on,2014;21(1):403-410
18 Nakano Y,Kojima H,Hayakawa N,et al.Development process of impulse surface discharge in vacuum.Proceedings-international Symposium on Discharges and Electrical Insulation in Vacuum,ISDEIV,2012:125-128
19蒋兴良,于亮,胡建林,等.棒-板长空气间隙在低气压下雷电冲击特性及电压校正.中国电机工程学报,2005;25(11):152-156.Jiang X L,Yu Liang,Hu Jianlin,et al.Lightning impuls discharge performance and voltage correction of long air gaps at lowe atmospheric pressure.Proceedings of the Chinese Society o Electrical Engineering,2005;25(11):152-156
20孙才新,蒋兴良,司马文霞,等.海拔4 000 m以上短间隙交流放电特性及电压校正.中国电机工程学报,2002;22(10):116-120Sun C X,Jiang X L,Sima W X,et al.Ac discharge performanc and voltage correction of short air gaps in 4 000 m and above altitud districts.Proceedings of the CSEE,2002;22(10):116-120
21杨津基.气体放电.北京:科学出版社,1983:236-244Yang J J.Gas discharge.Beijing:Science Press,1983:236-244