基于PSCAD的500kV输变电工程工频过电压的影响分析
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摘要
500kV输变电工程的线路模型选择、实际工程中不同高抗补偿方式都对工频过电压有影响,笔者应用PSCAD电磁暂态仿真软件对在Bergeron、Mode Model、Phase Model线路模型下进行仿真分析,在正常计算方式下分析高抗补偿的最佳方式和补偿容量。通过实际工程说明在Bergeron线路模型下工频过电压最小,对于距离200～300 km在正常运行方式下采用受端补偿以及131%补偿容量时抑制工频过电压最为合适以及经济最为合理。以上分析对500kV实际工程启动有一定的指导意义。
Route selection model of 500kV power transmission project,the actual engineering in different high resistance compensation method has influence on power frequency voltage,PSCAD electromagnetic transient simulation software is used in Bergeron,Mode Model,Phase Model circuit simulation analysis model,the best way of high resistance compensation and compensation capacity in the normal way is analyzed. Through calculation the minimum voltage through the practical project of Bergeron in power line model,the distance of 200 km ～ 300 km in normal operation mode used by the end of 131% when the compensation capacity and compensation to restrain the power frequency overvoltage is most appropriate and most economically reasonable. The above analysis has certain guiding significance to the actual 500kV project started.
Route selection model of 500kV power transmission project,the actual engineering in different high resistance compensation method has influence on power frequency voltage,PSCAD electromagnetic transient simulation software is used in Bergeron,Mode Model,Phase Model circuit simulation analysis model,the best way of high resistance compensation and compensation capacity in the normal way is analyzed. Through calculation the minimum voltage through the practical project of Bergeron in power line model,the distance of 200 km ～ 300 km in normal operation mode used by the end of 131% when the compensation capacity and compensation to restrain the power frequency overvoltage is most appropriate and most economically reasonable. The above analysis has certain guiding significance to the actual 500kV project started.
引文
[1]张芳榴.应用有架空地线的线路模型计算500千伏输电系统工频过电压[J].高电压技术,1982(1):19-26.ZHANG Fangliu. Using line model with overhead ground wire to calculate power frequency overvoltage of 500 k V transmission line[J]. High Voltage Technology,1982(1):19-26.
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[3]易强,周浩,计荣荣,等.特高压线路高抗补偿方案研究[J].电力系统保护与控制,2011,39(20):98-105.YI Qiang,ZHOU Hao,JI Rongrong,et al. Research on high-voltage reactor compensation of UHV AC transmission lines[J]. Power System Protection and Control,2011,39(20):98-105.
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[5]温定筠,陈涛,陈宏刚,等. 750 k V输电线路串补补偿容量对工频过电压的影响[J].电气技术,2014(12):68-72.WEN Dingjun,CHEN Tao,CHEN Honggang,et al. Impact of 750 k V transmission line series compensation capacity on power frequency overvoltage[J]. Electrical Engineering,2014(12):68-72.
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[7]樊争亮,常美生.杆塔模型对1 000 k V特高压同塔双回线路反击过电压的影响[J].电力学报,2013(2):104-108.FAN Zhengliang,CHANG Meisheng. Tower model of UHV 1000 k V double circuit lines on the same Tower counter effect[J]. Journal of Electric Power,2013(2):104-108.
[8]陶华. BPA向PSCAD/EMTDC模型转换方法的研究[D].保定:华北电力大学,2010.
[9]王剑,朱小红,李召兄,等. 330 k V同塔双回线路过电压计算及分析[J].高电压技术,2011(10):2450-2457.WANG Jian,ZHU Xiaohong,LI Zhaoxiong,et al. Calculation and analysis of passing voltage of 330 k V double circuit line on the same tower[J]. High Voltage Engineering,2011(10):2450-2457.
[10]孙可,易强,董朝武,等.特高压交流线路工频过电压研究[J].电网技术,2010(12):30-35.SUN Ke,YI Qiang,DONG Chaowu,et al. Study on power frequency overvoltage of UHV AC line[J]. Power System Technology,2010(12):30-35.
[11]梁思聪,王维庆,张新燕,等.基于PSCAD/EMTDC软件的空载线路工频过电压分析[J].华东电力,2009(2):253-255.LIANG Saicong,WANG Weiqing,ZHANG Xinyan,et al. Analysis of power frequency overvoltage of no-load line based on PSCAD/EMTDC software[J]. East China Electric Power,2009(2):253-255.
[12]栗向鑫,曹斌,张鹏,等.基于PSCAD的500 k V武—察同塔双回输变电工程内过电压仿真分析[J].高压电器,2015,51(4):84-92.LI Xiangxin,CAO Bin,ZHANG Peng,et al. The internal overvoltage simulation of 500 k V Wu-Cha double circuit transmission line on the same tower for power transmission and transformation project based on the PSCAD[J]. High Voltage Apparatus,2015,51(4):84-92.
[13]彭向阳,郑彬,梁文进,等. 500 k V线路高抗退出运行及选择备用电磁暂态[J].高电压技术,2010,36(3):699-704.PENG Xiangyang,ZHENG Bin,LIANG Wenjin,et al.Electromagnetic transient analysis on disengaging feasibility and standby applicability of 500 k V high-voltage reactors[J]. High Voltage Engineering,2010,36(3):699-704.
[14]董朝武,计荣荣,孙可,等.高抗补偿对交流特高压内部过电压的影响研究[J].能源工程,2011(1):13-16.DONG Chaowu,JI Rongrong,SUN Ke,et al. Study on the influence of high impedance compensation on internal overvoltage of AC UHV[J]. Energy Engineering,2011(1):13-16.
[15]周沛洪,阿慧雯,戴敏,等.可控高抗在1 000 k V交流紧凑型输电线路中的应用[J].高电压技术,2011,37(8):1832-1842.ZHOU Peihong,A Huiwen,DAI Min,et al. Application of controllable reactors to 1000 k V AC compact transmission line[J]. High Voltage Engineering,2011,37(8):1832-1842.
[16]丁心海,王先甲,黄涌,等.高低抗补偿调压机理比较及仿真分析[J].电力自动化设备,2010,30(2):63-66.DING Xinhai,WANG Xianjia,HUANG Chong,et al.Comparative and simulative analysis of voltage regulation mechanism by high and low voltage shunt reactors[J]. Electric Power Automation Equipment,2010,30(2):63-66.
[17]吴必瑞,王晓雷.交流特高压并联高抗无功补偿的暂态过程研究[J].厦门理工学院学报,2011(3):64-68.WU Birui,WANG Xiaolei. Study on transient process of AC high voltage parallel reactive power compensation[J].Journal of Lujiang University,2011(3):64-68.
[18]西安电瓷研究所.交流电气装置的过电压保护和绝缘配合:DL/T 620—1997[S].北京:中国电力出版社,1997.
[2]田书,郭芃君,梁京.特高压输电线路的工频过电压研究[J].电气技术,2011(9):18-21.TIAN Shu,GUO Pengjun,LIANG Jing. Study on power frequency over voltages of UHV transmission lines[J].Electric Technology,2011(9):18-21.
[3]易强,周浩,计荣荣,等.特高压线路高抗补偿方案研究[J].电力系统保护与控制,2011,39(20):98-105.YI Qiang,ZHOU Hao,JI Rongrong,et al. Research on high-voltage reactor compensation of UHV AC transmission lines[J]. Power System Protection and Control,2011,39(20):98-105.
[4]李振强,刘昊昕,娄颖.高抗过补偿对500 k V输电线路电磁暂态的影响研究[J].高压电器,2015(5):53-58.LI Zhenqiang,LIU Haoxin,LOU Ying. Study on the effects of high impedance over compensation on electromagnetic transients of 500 k V transmission line[J]. High Voltage Apparatus,2015(5):53-58.
[5]温定筠,陈涛,陈宏刚,等. 750 k V输电线路串补补偿容量对工频过电压的影响[J].电气技术,2014(12):68-72.WEN Dingjun,CHEN Tao,CHEN Honggang,et al. Impact of 750 k V transmission line series compensation capacity on power frequency overvoltage[J]. Electrical Engineering,2014(12):68-72.
[6]陈水明,许伟,何金良. 1 000 k V交流输电线路的工频暂态过电压研究[J].电网技术,2005(19):31-35.CHEN Shuiming,XU Wei,HE Jinliang. Study on power frequency transient overvoltage of 1 000 k V AC transmission lines[J]. Power System Technology,2005(19):31-35.
[7]樊争亮,常美生.杆塔模型对1 000 k V特高压同塔双回线路反击过电压的影响[J].电力学报,2013(2):104-108.FAN Zhengliang,CHANG Meisheng. Tower model of UHV 1000 k V double circuit lines on the same Tower counter effect[J]. Journal of Electric Power,2013(2):104-108.
[8]陶华. BPA向PSCAD/EMTDC模型转换方法的研究[D].保定:华北电力大学,2010.
[9]王剑,朱小红,李召兄,等. 330 k V同塔双回线路过电压计算及分析[J].高电压技术,2011(10):2450-2457.WANG Jian,ZHU Xiaohong,LI Zhaoxiong,et al. Calculation and analysis of passing voltage of 330 k V double circuit line on the same tower[J]. High Voltage Engineering,2011(10):2450-2457.
[10]孙可,易强,董朝武,等.特高压交流线路工频过电压研究[J].电网技术,2010(12):30-35.SUN Ke,YI Qiang,DONG Chaowu,et al. Study on power frequency overvoltage of UHV AC line[J]. Power System Technology,2010(12):30-35.
[11]梁思聪,王维庆,张新燕,等.基于PSCAD/EMTDC软件的空载线路工频过电压分析[J].华东电力,2009(2):253-255.LIANG Saicong,WANG Weiqing,ZHANG Xinyan,et al. Analysis of power frequency overvoltage of no-load line based on PSCAD/EMTDC software[J]. East China Electric Power,2009(2):253-255.
[12]栗向鑫,曹斌,张鹏,等.基于PSCAD的500 k V武—察同塔双回输变电工程内过电压仿真分析[J].高压电器,2015,51(4):84-92.LI Xiangxin,CAO Bin,ZHANG Peng,et al. The internal overvoltage simulation of 500 k V Wu-Cha double circuit transmission line on the same tower for power transmission and transformation project based on the PSCAD[J]. High Voltage Apparatus,2015,51(4):84-92.
[13]彭向阳,郑彬,梁文进,等. 500 k V线路高抗退出运行及选择备用电磁暂态[J].高电压技术,2010,36(3):699-704.PENG Xiangyang,ZHENG Bin,LIANG Wenjin,et al.Electromagnetic transient analysis on disengaging feasibility and standby applicability of 500 k V high-voltage reactors[J]. High Voltage Engineering,2010,36(3):699-704.
[14]董朝武,计荣荣,孙可,等.高抗补偿对交流特高压内部过电压的影响研究[J].能源工程,2011(1):13-16.DONG Chaowu,JI Rongrong,SUN Ke,et al. Study on the influence of high impedance compensation on internal overvoltage of AC UHV[J]. Energy Engineering,2011(1):13-16.
[15]周沛洪,阿慧雯,戴敏,等.可控高抗在1 000 k V交流紧凑型输电线路中的应用[J].高电压技术,2011,37(8):1832-1842.ZHOU Peihong,A Huiwen,DAI Min,et al. Application of controllable reactors to 1000 k V AC compact transmission line[J]. High Voltage Engineering,2011,37(8):1832-1842.
[16]丁心海,王先甲,黄涌,等.高低抗补偿调压机理比较及仿真分析[J].电力自动化设备,2010,30(2):63-66.DING Xinhai,WANG Xianjia,HUANG Chong,et al.Comparative and simulative analysis of voltage regulation mechanism by high and low voltage shunt reactors[J]. Electric Power Automation Equipment,2010,30(2):63-66.
[17]吴必瑞,王晓雷.交流特高压并联高抗无功补偿的暂态过程研究[J].厦门理工学院学报,2011(3):64-68.WU Birui,WANG Xiaolei. Study on transient process of AC high voltage parallel reactive power compensation[J].Journal of Lujiang University,2011(3):64-68.
[18]西安电瓷研究所.交流电气装置的过电压保护和绝缘配合:DL/T 620—1997[S].北京:中国电力出版社,1997.