±1100kV特高压直流输电受端接入方式的综合评估
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摘要
以±1100 kV特高压直流输电工程受端接入方式为评价对象,从潮流分布和安全稳定性2个方面提出了其评价指标体系,其中潮流分布指标包括潮流均匀度、线路负荷率、断面热稳定水平、特高压主变下网功率等,安全稳定性指标包括短路比、换相失败系数、功角严重度指标和故障摇摆严重度指标等。基于层次分析法和改进扇形雷达图法,提出了适用于±1100 kV特高压直流输电受端接入方式的综合评估方法,可用于定量评估不同接入方式的总体效果。
To assess the receiving end connection scheme of ±1 100 kV UHVDC( Ultra High Voltage Direct Voltage)project,an evaluation index system based on power flow distribution and system security and stability is established.The power flow distribution indexes contain the power flow evenness,line load rate,interface thermal stability level and UHV( Ultra High Voltage) transformer power,etc.,while the system security and stability indexes contain the short circuit ratio,commutation failure rate,power angle severity index and power swing severity index,etc. Furthermore,based on the analytic hierarchy process and radar chart,a comprehensive evaluation method for the receiving end connection scheme of ±1 100 kV UHVDC project is proposed,which can quantitatively evaluate the overall impacts of different connection schemes.
To assess the receiving end connection scheme of ±1 100 kV UHVDC( Ultra High Voltage Direct Voltage)project,an evaluation index system based on power flow distribution and system security and stability is established.The power flow distribution indexes contain the power flow evenness,line load rate,interface thermal stability level and UHV( Ultra High Voltage) transformer power,etc.,while the system security and stability indexes contain the short circuit ratio,commutation failure rate,power angle severity index and power swing severity index,etc. Furthermore,based on the analytic hierarchy process and radar chart,a comprehensive evaluation method for the receiving end connection scheme of ±1 100 kV UHVDC project is proposed,which can quantitatively evaluate the overall impacts of different connection schemes.
引文
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[14]潘智俊,张焰.城市电网结构坚强性评价的指标体系和方法[J].中国电机工程学报,2015,35(16):3999-4005.PAN Zhijun,ZHANG Yan.Index system and method for structure strength assessment of urban power network[J].Proceedings of the CSEE,2015,35(16):3999-4005.
[15]赵娟,申旭辉,吴丽华,等.结合直流潮流模型的电网断面热稳定极限快速评估方法[J].电力系统保护与控制,2015,43(3):97-101.ZHAO Juan,SHEN Xuhui,WU Lihua,et al.Fast evaluation method on thermal stability limit of power grid crosssection with DC power flow model[J].Power System Protection and Control,2015,43(3):97-101.
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[18]B CIGRE Working Group.Systems with multiple DC infeed[R].Paris,France:CIGRE,2008.
[19]邵雅宁,唐飞,刘涤尘,等.一种适用于WAMS量测数据的系统暂态功角稳定评估方法[J].电力系统保护与控制,2015,43(6):33-39.SHAO Yaning,TANG Fei,LIU Dichen,et al.An approach of transient angle stability assessment in power system for WAMS measured data[J].Power System Protection and Control,2015,43(6):33-39.
[20]汤蕾,沈沉,王志文,等.基于端口供给能量的特高压电网扰动冲击传播机理分析[J].高电压技术,2015,41(3):824-831.TANG Lei,SHEN Chen,WANG Zhiwen,et al.Mechanism of disturbance impact propagation in ultra-high voltage power system based on energy supply on port[J].High Voltage Engineering,2015,41(3):824-831.
[21]SAATY T L.The seven pillars of the analytic hierarchy process[J].Multiple Criteria Decision Making in the New Millennium,2001,507:15-37.
[22]陈勇,陈潇凯,李志远,等.具有评价结果唯一性特征的雷达图综合评价法[J].北京理工大学学报,2010,30(12):1409-1412.CHEN Yong,CHEN Xiaokai,LI Zhiyuan,et al.Method of radar chart comprehensive evaluation with uniqueness feature[J].Transactions of Beijing Institute of Technology,2010,30(12):1409-1412.
[2]付蓉,孙万钱,汤奕,等.特高压直流分层接入方式下稳态特性研究[J].电力自动化设备,2017,37(1):87-92.FU Rong,SUN Wanqian,TANG Yi,et al.Steady-state characteristics of UHVDC hierarchical connection mode[J].Electric Power Automation Equipment,2017,37(1):87-92.
[3]邓旭,王东举,沈扬,等.±1 100 k V特高压换流站直流操作过电压研究[J].电力自动化设备,2014,34(1):141-147.DENG Xu,WANG Dongju,SHEN Yang,et al.DC switching overvoltage of±1 100 k V UHVDC converter station[J].Electric Power Automation Equipment,2014,34(1):141-147.
[4]杨鹏,吴娅妮,马士聪,等.±1 100 k V特高压直流输电工程直流线路故障重启动过程非故障极换相失败研究[J].电力自动化设备,2016,36(4):14-18.YANG Peng,WU Yani,MA Shicong,et al.Analysis of commutation failure of healthy pole during restart of faulty line for±1 100 k V UHVDC project[J].Electric Power Automation Equipment,2016,36(4):14-18.
[5]李兆伟,翟海保,刘福锁,等.华东大受端电网直流接入能力评估[J].电力系统自动化,2016,40(16):147-152.LI Zhaowei,ZHAI Haibao,LIU Fusuo,et al.DC access capability evaluation for east china power grid[J].Automation of Electric Power Systems,2016,40(16):147-152.
[6]邵瑶,汤涌,郭小江,等.2015年特高压规划电网华北和华东地区多馈入直流输电系统的换相失败分析[J].电网技术,2011,35(10):9-15.SHAO Yao,TANG Yong,GUO Xiaojiang,et al.Analysis on commutation failures in multi-infeed HVDC transmission systems in north China and east China power grids planned for UHV power grids in2015[J].Power System Technology,2011,35(10):9-15.
[7]李伟,肖湘宁,郭琦.直流换相失败期间阀换相过程微观分析方法[J].电力自动化设备,2017,37(3):115-119.LI Wei,XIAO Xiangning,GUO Qi.Micro-analysis of valve commutation process during DC commutation failure[J].Electric Power Automation Equipment,2017,37(3):115-119.
[8]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 HVDC system[J].Proceedings of the CSEE,2013,33(10):1-7.
[9]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 AC grid[J].Proceedings of the CSEE,2016,36(7):1790-1800.
[10]王雅婷,张一驰,郭小江,等.±1 100 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±1 100 k V UHVDC sending and receiving ends[J].Power System Technology,2016,40(7):1927-1933.
[11]袁金晶,欧阳森,石怡理,等.基于激励惩罚机制的区域电网电能质量综合评价方法[J].电力系统自动化,2013,37(7):55-59.YUAN Jinjing,OUYANG Sen,SHI Yili,et al.Power quality comprehensive evaluation of regional power grid based on incentive and punishment mechanism[J].Automation of Electric Power Systems,2013,37(7):55-59.
[12]王钦,文福拴,刘敏,等.基于模糊集理论和层次分析法的电力市场综合评价[J].电力系统自动化,2009,33(7):32-37.WANG Qin,WEN Fushuan,LIU Min,et al.Combined use of fuzzyset theory and analytic hierarchy process for comprehensive assessment of electricity markets[J].Automation of Electric Power Systems,2009,33(7):32-37.
[13]王雁凌,李艳君,许奇超.改进雷达图法在输变电工程综合评价中的应用[J].电力系统保护与控制,2012,40(5):119-123.WANG Yanling,LI Yanjun,XU Qichao.Application of improved radar chart in comprehensive evaluation of power transmission and transformation project[J].Power System Protection and Control,2012,40(5):119-123.
[14]潘智俊,张焰.城市电网结构坚强性评价的指标体系和方法[J].中国电机工程学报,2015,35(16):3999-4005.PAN Zhijun,ZHANG Yan.Index system and method for structure strength assessment of urban power network[J].Proceedings of the CSEE,2015,35(16):3999-4005.
[15]赵娟,申旭辉,吴丽华,等.结合直流潮流模型的电网断面热稳定极限快速评估方法[J].电力系统保护与控制,2015,43(3):97-101.ZHAO Juan,SHEN Xuhui,WU Lihua,et al.Fast evaluation method on thermal stability limit of power grid crosssection with DC power flow model[J].Power System Protection and Control,2015,43(3):97-101.
[16]中华人民共和国国家经济贸易委员会.电力系统安全稳定导则:DL 755—2001[S].北京:中国电力出版社,2001.
[17]刘建,李兴源,傅孝韬,等.多馈入短路比及多馈入交互作用因子与换相失败的关系[J].电网技术,2009,33(12):20-25.LIU Jian,LI Xingyuan,FU Xiaotao,et al.Relationship of multi-infeed short circuit ratio and multi-infeed interaction factor with commutation failure[J].Power System Technology,2009,33(12):20-25.
[18]B CIGRE Working Group.Systems with multiple DC infeed[R].Paris,France:CIGRE,2008.
[19]邵雅宁,唐飞,刘涤尘,等.一种适用于WAMS量测数据的系统暂态功角稳定评估方法[J].电力系统保护与控制,2015,43(6):33-39.SHAO Yaning,TANG Fei,LIU Dichen,et al.An approach of transient angle stability assessment in power system for WAMS measured data[J].Power System Protection and Control,2015,43(6):33-39.
[20]汤蕾,沈沉,王志文,等.基于端口供给能量的特高压电网扰动冲击传播机理分析[J].高电压技术,2015,41(3):824-831.TANG Lei,SHEN Chen,WANG Zhiwen,et al.Mechanism of disturbance impact propagation in ultra-high voltage power system based on energy supply on port[J].High Voltage Engineering,2015,41(3):824-831.
[21]SAATY T L.The seven pillars of the analytic hierarchy process[J].Multiple Criteria Decision Making in the New Millennium,2001,507:15-37.
[22]陈勇,陈潇凯,李志远,等.具有评价结果唯一性特征的雷达图综合评价法[J].北京理工大学学报,2010,30(12):1409-1412.CHEN Yong,CHEN Xiaokai,LI Zhiyuan,et al.Method of radar chart comprehensive evaluation with uniqueness feature[J].Transactions of Beijing Institute of Technology,2010,30(12):1409-1412.