动态无功补偿装置抑制直流换相失败能力影响因素研究
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摘要
针对交直流混联电网中直流换相失败的问题,对影响动态无功补偿装置抑制直流换相失败效果的因素进行了深入的研究和分析。首先对比分析了同步调相机、静止无功补偿器(SVC)、静止同步补偿器(STATCOM)3类常用的动态无功补偿设备的特性。其次研究了动态无功补偿设备抵御直流系统发生换相失败的机理,总结了影响动态无功补偿装置效果的因素。最后采用电力系统潮流计算仿真软件(PSD-BPA)分别对单馈入直流系统以及华东十馈入直流系统进行仿真分析,仿真结果表明,动态无功装置的安装地点对其抑制直流系统换相失败能力有较大影响,当安装地点确定时,其抑制直流系统发生换相失败的能力随着安装容量的增加逐渐饱和。
In the light of the DC commutation failure in AC/DC hybrid power grid, the paper makes a deep study and analysis on the factors affecting the efficiency of eliminating the DC commutation failure by using dynamic reactive compensation device. Firstly, the characteristics of synchronous condenser, SVC and STATCOM, which are three kinds of commonly used dynamic reactive power compensation devices, are compared and analyzed. Secondly the mechanism of dynamic reactive power compensation device against the commutation failure in DC system is further analyzed, and the factors affecting the effect of the dynamic reactive power compensation device to eliminate the DC commutation failure are summarized. Finally, the simulation about single-infeed DC system and East China ten-infeed DC system is made with PSD-BPA simulation software. The simulation results show that the installation position of the dynamic reactive compensation devices has a great influence on the ability of eliminating the commutation failure in the DC system.When the installation position is fixed, the ability to eliminate the commutation failure in the DC system is gradually becoming saturated with the increase of the installation capacity.
In the light of the DC commutation failure in AC/DC hybrid power grid, the paper makes a deep study and analysis on the factors affecting the efficiency of eliminating the DC commutation failure by using dynamic reactive compensation device. Firstly, the characteristics of synchronous condenser, SVC and STATCOM, which are three kinds of commonly used dynamic reactive power compensation devices, are compared and analyzed. Secondly the mechanism of dynamic reactive power compensation device against the commutation failure in DC system is further analyzed, and the factors affecting the effect of the dynamic reactive power compensation device to eliminate the DC commutation failure are summarized. Finally, the simulation about single-infeed DC system and East China ten-infeed DC system is made with PSD-BPA simulation software. The simulation results show that the installation position of the dynamic reactive compensation devices has a great influence on the ability of eliminating the commutation failure in the DC system.When the installation position is fixed, the ability to eliminate the commutation failure in the DC system is gradually becoming saturated with the increase of the installation capacity.
引文
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[14]刘旺,陈益峰,朱添安,等.交直流电网的无功补偿选点及容量优化研究[J].电力系统保护与控制,2017,45(10):91-97.LIU WANG, CHEN Yifeng, ZHU Tianan, et al. Study on location and capacity optimization of reactive power compensation in AC-DC grids[J]. Power System Protection and Control, 2017,45(10):91-97.
[15]辛业春,李国庆,王朝斌.无功和三相负荷不平衡的序分量法补偿控制[J].电力系统保护与控制,2014,42(14):72-78.XIN Yechun, LI Guoqing, WANG Chaobin. Compensation control of reactive power and three-phase unbalance load based on the method of sequence components[J]. Power System Protection and Control, 2014,42(14):72-78.
[16]黄娟娟,王巍,洪潮,et al.南方电网2020年无功补偿配置原则研究[J].广东电力,2016, 29(7):53-58.HUANG Juanjuan, WANG Wei, HONG Chao, et al.Research reactive power compensation and configuration principles of CSG in 2020[J].Guangdong Electric Power,2016, 29(7):53-58.
[17]刘建勋,陆榛,付俊波,等.抵御直流连续换相失败的同步调相机配置研究[J].智慧电力,2017,45(12):22-27.LIU Jianxun, LU Lou, FU Junbo, et al. Research on synchronous condenser configuration for resisting continuous commutation failture in HVDS[J]. Smart Power, 2017,45(12):22-27.
[18]王轩,魏宏,欧朱建,等.一种抑制HVDC换相失败的STATCOM补偿方案[J].电力系统保护与控制,2018,46(5):135-142.WANG Xuan, WEI Hong, OU Zhujian, et al. A STATCOM compensation scheme for suppressing commutation failure in HVDC system[J]. Power System Protection and Control, 2018,46(5):135-142.
[2]陈国平,李明杰.我国电网支撑可再生能源发展的实践与挑战[J].电网技术.2017, 41(7):3095-3103.CHEN Guoping, LI Mingjie. Practice and challenge of renewable energy development based on interconnected power grids[J]. Power System Technology, 2017, 41(7):3095-3103.
[3]李明节.大规模特高压交直流混联电网特性分析与运行控制[J].电网技术,2016, 40(4):985-991.LI Mingjie. Characteristic analysis and operational control of large-scale hybrid UHV AC/DC power grids[J]. Power System Technology,2016, 40(4):985-991.
[4]林凌雪,张尧,钟庆,等.多馈入直流输电系统中换相失败研究综述[J].电网技术,2006, 30(17):40-46.LIN Lingxue, ZHANG Yao, ZHONG Qing, et al. A survey on commutation failures in multi-infeed HVDC transmission systems[J]. Power System Technology, 2006,30(17):40-46.
[5]郭利娜,刘天琪,李兴源.抑制多馈入直流输电系统后续换相失败措施研究[J].电力自动化设备,2013, 33(11):95-99.GUO Lina, LIU Tianqi,LI Xingyuan. Measures inhibiting follow-up commutation failures in multi-infeed HVDC system[J]. Electric Power Automation Equipment, 2013,33(11):95-99.
[6]王超,李兴源,冯明,等.抑制多馈人直流输电系统相继换相失败的协调恢复控制策略[J].电测与仪表,2016, 53(13):19-24.WANG Chao, LI Xingyuan, FENG Ming, et al.Coordinated recovery strategy for inhibiting continuous commutation failures in multi-infeed HVDC transmission system[J]. Electrical Measurement&Instrumentation,2016, 53(13):19-24.
[7]郭郓闻,张建设,胡云,等.大容量分布式STATCOM对南方电网交直流系统影响的实时仿真研究[J].高电压技术,2014, 40(8):2586-2592.GUO Yunwen, ZHANG Jianshe, HU Yun, et al. Realtime simulation analysis of the impacts of distributed largecapacity STAT-COM on AC/DC parallel system in China Southern Power Grid[J]. High Voltage Engineering, 2014,40(8):2586-2592.
[8]肖俊,李兴源,冯明,等.多馈人交直流系统无功补偿装置的布点[J].电网技术,2014, 38(10):2638-2643.XIAO Jun, LI Xingyuan, FENG Ming, et al. Determination of installation sites for reactive compensation devices in multi-infeed AC/DC power system[J]. Power System Technology, 2014, 38(10):2638-2643.
[9]张红丽,刘福锁,李威.动态无功补偿装置提高多馈人直流恢复的布点方法[J].电力系统自动化,2016,41(5):133-138.ZHANG Hongli, LIU Fusuo, LI Wei. Site selection for dynamic reactive power compensation and improvement of recovery from commutation failures in multi-infeed HVDC system[J]. Automation of Electric Power System, 2016,41(5):133-138.
[10]金一丁,于钊,李明节,等.新一代调相机与电力电子无功补偿装置在特高压交直流电网中应用的比较[J].电网技术,2018, 42(07):2095-2102.JIN Yiding, YU Zhao, LI Mingjie, et al. Comparison of new generation synchronous condenser and power electronic reactive-power compensation devices in application in UHV DC/AC grid[J]. Power System Technology, 2018, 42(07):2095-2102.
[11]康青.动态无功补偿设备在高压直流输电换相失败中的应用研究[D].北京:北京交通大学,2014.
[12]高本锋,毛亚鹏.链式STATCOM对HVDC换相失败的影响分析[J].电测与仪表,2018, 55(10):74-81.GAO Benfeng, MAO Yapeng, A research of the effect of chain STATCOM on HVDC commutation failure[J].Electrical Measurement&Instrumentation, 2018, 55(10):74-81.
[13]黄娟娟,李泰军,田昕,等.雅中-江西±800kV特高压直流工程受端换流站容性无功配置研究[J].广东电力,2016,29(11):64-69.HUANG Juanjuan, LI Taijun,TIAN Xin, et al. Capacitive reactive power compensation in receiving-end converter station of Yazhong-Jiangxi±800 kv ultra-high voltage direct current transmission project[J]. Guangdong Electric Power, 2016,29(11):64-69.
[14]刘旺,陈益峰,朱添安,等.交直流电网的无功补偿选点及容量优化研究[J].电力系统保护与控制,2017,45(10):91-97.LIU WANG, CHEN Yifeng, ZHU Tianan, et al. Study on location and capacity optimization of reactive power compensation in AC-DC grids[J]. Power System Protection and Control, 2017,45(10):91-97.
[15]辛业春,李国庆,王朝斌.无功和三相负荷不平衡的序分量法补偿控制[J].电力系统保护与控制,2014,42(14):72-78.XIN Yechun, LI Guoqing, WANG Chaobin. Compensation control of reactive power and three-phase unbalance load based on the method of sequence components[J]. Power System Protection and Control, 2014,42(14):72-78.
[16]黄娟娟,王巍,洪潮,et al.南方电网2020年无功补偿配置原则研究[J].广东电力,2016, 29(7):53-58.HUANG Juanjuan, WANG Wei, HONG Chao, et al.Research reactive power compensation and configuration principles of CSG in 2020[J].Guangdong Electric Power,2016, 29(7):53-58.
[17]刘建勋,陆榛,付俊波,等.抵御直流连续换相失败的同步调相机配置研究[J].智慧电力,2017,45(12):22-27.LIU Jianxun, LU Lou, FU Junbo, et al. Research on synchronous condenser configuration for resisting continuous commutation failture in HVDS[J]. Smart Power, 2017,45(12):22-27.
[18]王轩,魏宏,欧朱建,等.一种抑制HVDC换相失败的STATCOM补偿方案[J].电力系统保护与控制,2018,46(5):135-142.WANG Xuan, WEI Hong, OU Zhujian, et al. A STATCOM compensation scheme for suppressing commutation failure in HVDC system[J]. Power System Protection and Control, 2018,46(5):135-142.