±1100kV特高压直流分层接入后受端电网稳定特性及控制措施
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摘要
昌吉—古泉±1100 kV特高压直流(以下简称"吉泉直流")分层接入受端华东电网后,将给华东交流电网的运行带来新的安全稳定问题。为此,该文针对吉泉直流分层及单层接入两种不同方式,对直流近区潮流、分层接入直流短路比及电压波动特性进行了比较;分析了不同故障下吉泉直流分层接入后受端电网的稳定特性,并提出了相应的安全稳定控制策略,保障了华东电网的安全稳定运行。
After hierarchical connection of ChangjiGuquan ±1100 kV UHVDC, new security and stability problems have arisen in receiving-end East China Power Grid. In this regard, this study made comparison of DC nearby area power flow, hierarchical connection DC short circuit ratio, and voltage fluctuation between single-layer connection and hierarchical connection of UHVDC. Stability characteristics of the receiving-end power grid after hierarchical connection of UHVDC were analyzed and corresponding control strategies were proposed to ensure secure and stable operation of East China Power Grid.
After hierarchical connection of ChangjiGuquan ±1100 kV UHVDC, new security and stability problems have arisen in receiving-end East China Power Grid. In this regard, this study made comparison of DC nearby area power flow, hierarchical connection DC short circuit ratio, and voltage fluctuation between single-layer connection and hierarchical connection of UHVDC. Stability characteristics of the receiving-end power grid after hierarchical connection of UHVDC were analyzed and corresponding control strategies were proposed to ensure secure and stable operation of East China Power Grid.
引文
[1]刘振亚.特高压交直流电网[M].北京:中国电力出版社,2013:65-89.
[2]李兴源.高压直流输电系统的运行和控制[M].北京:科学出版社,1998:117-150.
[3]赵畹君.高压直流输电工程技术[M].北京:中国电力出版社,2004:55-57.
[4]吴萍,陈昊,赵兵,等.风光火打捆交直流混联外送系统交互影响及稳定性研究[J].电网技术,2016,40(7):1934-1942.Wu Ping,Chen Hao,Zhao Bing,et al.Study on interaction and stability characteristics of bundled Wind-PV-Thermal power transmitted with AC/DC system[J].Power System Technology,2016,40(7):1934-1942(in Chinese).
[5]徐式蕴,吴萍,赵兵,等,哈郑直流受端华中电网基于响应的交直流协调控制措施[J].电网技术,2015,39(7):1773-1778.Xu Shiyun,Wu Ping,Zhao Bing,et al.Coordinated control strategy of interconnected grid Integrated with UHVDC transmission line from hami to zhengzhou[J].Power System Technology,2015,39(7):1773-1778(in Chinese).
[6]贺庆,张宝家,马士聪,等.特高压交直流接入下的山东断面输电能力提高措施研究[J].电网技术,2017,42(1):126-132.He Qing,Zhang Baojia,Ma Shicong,et al.Research on the measures to increase transmission capacity of shandong section under ultra-high voltage AC/DC access[J].Power System Technology,2017,42(1):126-132(in Chinese).
[7]刘振亚,舒印彪,张文亮,等.直流输电系统电压等级序列研究[J].中国电机工程学报,2008,28(10):1-8.Liu Zhenya,Shu Yinbiao,Zhang Wenliang,et al.Study on voltage class series for HVDC transmission system[J].Proceedings of the CSEE,2008,28(10):1-8(in Chinese).
[8]刘泽洪,高理迎,余军,等.±1000 k V特高压直流输电技术研发思路[J].中国电机工程学报,2009,29(22):76-82.Liu Zehong,Gao Liying,Yu Jun,et al.R&D ideas of±1000 k VUHVDC transmission technology[J].Proceedings of the CSEE,2009,29(22):76-82(in Chinese).
[9]郭焕,曹均正,汤广福,等.±1100 k V特高压直流换流系统主电路优化设计[J].电网技术,2013,37(9):2383-2389.Guo Huan,Cao Junzheng,Tang Guangfu,et al.Optimization design of main circuit of converter system for±1100 k V UHVDCtransmission system[J].Power System Technology,2013,37(9):2383-2389(in Chinese).
[10]徐式蕴,樊明鉴,曾兵,等.±1100千伏吉泉-古泉特高压直流输电工程过渡期安全稳定控制策略研究[R].北京:中国电力科学研究院,2017.
[11]杨万开,印永华,班连庚,等.±1100 k V特高压直流系统试验方案研究[J].电网技术,2015,39(10):2815-2821.Yang Wankai,Yin Yonghua,Ban Liangeng,et al.Study on±1100 k V UHVDC system commissioning test program[J].Power System Technology,2015,39(10):2815-2821(in Chinese).
[12]郭龙,刘崇茹,贠飞龙,等.±1100 k V直流系统分层接入方式下的功率协调控制[J].电力系统自动化,2015,39(11):24-30.Guo Long,Liu Chongru,Yun Feilong,et al.Power coordination control of±1100 k V UHVDC system with hierarchical connection mode[J].Automation of Electric Power Systems,2015,39(11):24-30(in Chinese).
[13]王雅婷,张一驰,郭小江,等.±1100 k V特高压直流送受端接入系统方案研究[J].电网技术,2016,40(7):1927-1933.Wang Yating,Zhang Yichi,Guo Xiaojiang,et al.A study on system connection schemes for±1100 k V UHVDC sending and receiving ends[J].Power System Technology,2016,40(7):1927-1933(in Chinese).
[14]刘振亚,秦晓辉,赵良,等.特高压直流分层接入方式在多馈入直流电网的应用研究[J].中国电机工程学报,2013,33(10):1-7.Liu Zhenya,Qin Xiaohui,Zhao Liang,et al.Study on the application of UHVDC hierarchical connection mode to multi-infeed HVDCsystem[J].Proceedings of the CSEE,2013,33(10):1-7(in Chinese).
[15]汤奕,陈斌,皮景创,等.特高压直流分层接入方式下受端交流系统接纳能力分析[J].中国电机工程学报,2016,36(7):1790-1800.Tang Yi,Chen Bin,Pi Jingchuang,et al.Analysis on absorbing ability of receiving AC system for UHVDC hierarchical connection to ACgrid[J].Proceedings of the CSEE,2016,36(7):1790-1800(in Chinese).
[16]林伟芳,易俊,汤涌,等.分层直流短路比的定义和应用[J].中国电机工程学报,2017,37(22):6627-6635.Lin Weifang,Yi Jun,Tang Yong,et al.Definition and application of hierarchical infeed DC short circuit ratio[J].Proceedings of the CSEE,2017,37(22):6627-6635(in Chinese).
[17]王玲,文俊,司瑞华,等.UHVDC分极分层接入方式及其运行特性[J].电工技术学报,2018,33(8):730-738.Wang Ling,Wen Jun,Si Ruihua,et al.The connection mode and operation characteristics of UHVDC with hierarchical connection by pole[J].Transactions of China Electrotechnical Society,2018,33(8):730-738(in Chinese).
[18]张文朝,何玉龙,顾雪平,等.单输电通道中输电断面静稳极限的快速估算[J].电网技术,2012,36(5):92-95.Zhang Wenchao,He Yulong,Gu Xueping,et al.A fast method to estimate steady-state stability limit of tie line in single power transmission channel[J].Power System Technology,2012,36(5):92-95(in Chinese).
[19]赵良,郭强,覃琴,等.特高压同步电网稳定特性分析[J].中国电机工程学报,2008,28(34):47-51.Zhao Liang,Guo Qiang,Qin Qin,et al.Analysis on stability characteristics of UHV synchronized power grid[J].Proceedings of the CSEE,2008,28(34):47-51(in Chinese).
[20]邓晖,楼伯良,华文,等.特高压直流闭锁后华东电网频率稳定特性研究[J].智慧电力,2017,45(8):39-44.Deng Hui,Lou Boliang,Hua Wen,et al.Frequency stability analysis of East China power grid due to HYDC Block[J].Smart Power,2017,45(8):39-44(in Chinese).
[2]李兴源.高压直流输电系统的运行和控制[M].北京:科学出版社,1998:117-150.
[3]赵畹君.高压直流输电工程技术[M].北京:中国电力出版社,2004:55-57.
[4]吴萍,陈昊,赵兵,等.风光火打捆交直流混联外送系统交互影响及稳定性研究[J].电网技术,2016,40(7):1934-1942.Wu Ping,Chen Hao,Zhao Bing,et al.Study on interaction and stability characteristics of bundled Wind-PV-Thermal power transmitted with AC/DC system[J].Power System Technology,2016,40(7):1934-1942(in Chinese).
[5]徐式蕴,吴萍,赵兵,等,哈郑直流受端华中电网基于响应的交直流协调控制措施[J].电网技术,2015,39(7):1773-1778.Xu Shiyun,Wu Ping,Zhao Bing,et al.Coordinated control strategy of interconnected grid Integrated with UHVDC transmission line from hami to zhengzhou[J].Power System Technology,2015,39(7):1773-1778(in Chinese).
[6]贺庆,张宝家,马士聪,等.特高压交直流接入下的山东断面输电能力提高措施研究[J].电网技术,2017,42(1):126-132.He Qing,Zhang Baojia,Ma Shicong,et al.Research on the measures to increase transmission capacity of shandong section under ultra-high voltage AC/DC access[J].Power System Technology,2017,42(1):126-132(in Chinese).
[7]刘振亚,舒印彪,张文亮,等.直流输电系统电压等级序列研究[J].中国电机工程学报,2008,28(10):1-8.Liu Zhenya,Shu Yinbiao,Zhang Wenliang,et al.Study on voltage class series for HVDC transmission system[J].Proceedings of the CSEE,2008,28(10):1-8(in Chinese).
[8]刘泽洪,高理迎,余军,等.±1000 k V特高压直流输电技术研发思路[J].中国电机工程学报,2009,29(22):76-82.Liu Zehong,Gao Liying,Yu Jun,et al.R&D ideas of±1000 k VUHVDC transmission technology[J].Proceedings of the CSEE,2009,29(22):76-82(in Chinese).
[9]郭焕,曹均正,汤广福,等.±1100 k V特高压直流换流系统主电路优化设计[J].电网技术,2013,37(9):2383-2389.Guo Huan,Cao Junzheng,Tang Guangfu,et al.Optimization design of main circuit of converter system for±1100 k V UHVDCtransmission system[J].Power System Technology,2013,37(9):2383-2389(in Chinese).
[10]徐式蕴,樊明鉴,曾兵,等.±1100千伏吉泉-古泉特高压直流输电工程过渡期安全稳定控制策略研究[R].北京:中国电力科学研究院,2017.
[11]杨万开,印永华,班连庚,等.±1100 k V特高压直流系统试验方案研究[J].电网技术,2015,39(10):2815-2821.Yang Wankai,Yin Yonghua,Ban Liangeng,et al.Study on±1100 k V UHVDC system commissioning test program[J].Power System Technology,2015,39(10):2815-2821(in Chinese).
[12]郭龙,刘崇茹,贠飞龙,等.±1100 k V直流系统分层接入方式下的功率协调控制[J].电力系统自动化,2015,39(11):24-30.Guo Long,Liu Chongru,Yun Feilong,et al.Power coordination control of±1100 k V UHVDC system with hierarchical connection mode[J].Automation of Electric Power Systems,2015,39(11):24-30(in Chinese).
[13]王雅婷,张一驰,郭小江,等.±1100 k V特高压直流送受端接入系统方案研究[J].电网技术,2016,40(7):1927-1933.Wang Yating,Zhang Yichi,Guo Xiaojiang,et al.A study on system connection schemes for±1100 k V UHVDC sending and receiving ends[J].Power System Technology,2016,40(7):1927-1933(in Chinese).
[14]刘振亚,秦晓辉,赵良,等.特高压直流分层接入方式在多馈入直流电网的应用研究[J].中国电机工程学报,2013,33(10):1-7.Liu Zhenya,Qin Xiaohui,Zhao Liang,et al.Study on the application of UHVDC hierarchical connection mode to multi-infeed HVDCsystem[J].Proceedings of the CSEE,2013,33(10):1-7(in Chinese).
[15]汤奕,陈斌,皮景创,等.特高压直流分层接入方式下受端交流系统接纳能力分析[J].中国电机工程学报,2016,36(7):1790-1800.Tang Yi,Chen Bin,Pi Jingchuang,et al.Analysis on absorbing ability of receiving AC system for UHVDC hierarchical connection to ACgrid[J].Proceedings of the CSEE,2016,36(7):1790-1800(in Chinese).
[16]林伟芳,易俊,汤涌,等.分层直流短路比的定义和应用[J].中国电机工程学报,2017,37(22):6627-6635.Lin Weifang,Yi Jun,Tang Yong,et al.Definition and application of hierarchical infeed DC short circuit ratio[J].Proceedings of the CSEE,2017,37(22):6627-6635(in Chinese).
[17]王玲,文俊,司瑞华,等.UHVDC分极分层接入方式及其运行特性[J].电工技术学报,2018,33(8):730-738.Wang Ling,Wen Jun,Si Ruihua,et al.The connection mode and operation characteristics of UHVDC with hierarchical connection by pole[J].Transactions of China Electrotechnical Society,2018,33(8):730-738(in Chinese).
[18]张文朝,何玉龙,顾雪平,等.单输电通道中输电断面静稳极限的快速估算[J].电网技术,2012,36(5):92-95.Zhang Wenchao,He Yulong,Gu Xueping,et al.A fast method to estimate steady-state stability limit of tie line in single power transmission channel[J].Power System Technology,2012,36(5):92-95(in Chinese).
[19]赵良,郭强,覃琴,等.特高压同步电网稳定特性分析[J].中国电机工程学报,2008,28(34):47-51.Zhao Liang,Guo Qiang,Qin Qin,et al.Analysis on stability characteristics of UHV synchronized power grid[J].Proceedings of the CSEE,2008,28(34):47-51(in Chinese).
[20]邓晖,楼伯良,华文,等.特高压直流闭锁后华东电网频率稳定特性研究[J].智慧电力,2017,45(8):39-44.Deng Hui,Lou Boliang,Hua Wen,et al.Frequency stability analysis of East China power grid due to HYDC Block[J].Smart Power,2017,45(8):39-44(in Chinese).
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