直流融冰装置对贵州电网电压稳定性的影响研究
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摘要
目前,国内外电网均缺乏大规模应用直流融冰装置的实践经验,随着大量融冰装置的应用,对系统电压稳定性的影响已经不能忽略,在电网遭受到大面积严重覆冰灾害时,由于大量线路覆冰严重,为保证电网安全运行,需要同步进行融冰操作。在考虑电网安全约束、分区分层原则、线路分类以及气象因素等多约束条件下,以对更多线路进行不同类型的融冰。通过研究对实时运行系统中的可投运的融冰装置节点进行电压稳定性分析,给出现有实时融冰装置节点的电压强弱排序,为下一步研究直流融冰装置的优化调度策略打下基础,提高电压水平,改善电能质量,为已投运的直流融冰装置的无功管理提供具体策略,对构建坚强的智能电网,具有十分重要的理论意义和实用价值。
At present,domestic and foreign power grids lack the practical experience of applying DC ice-melting devices in large-scale applications. With the application of a large number of DC ice-melting devices,the impact on system voltage stability cannot be ignored. When the power grid was subjected to large-scale severe ice-covering disasters,a great number of line were severely covered with ice,and in order to ensure the safe operation of the power grid,ice melting operations must be performed simultaneously. Considering the safety constraints of the power grid,the principle of stratified zoning,line classification and meteorological factors and other constraints,different types of ice melting would be carried out for more lines. Through studying the voltage stability analysis of the operational ice-melting devices nodes in the real-time running system,the voltage strength of the existing real-time ice-melting device nodes was sorted,which lays the foundation for further research on the optimal scheduling strategy of DC ice-melting devices. Improving voltage levels,ameliorating power quality,providing specific strategies for the reactive power management of DC ice-melting devices that have been put into operation. It is of great theoretical and practical value to build a strong smart grid.
At present,domestic and foreign power grids lack the practical experience of applying DC ice-melting devices in large-scale applications. With the application of a large number of DC ice-melting devices,the impact on system voltage stability cannot be ignored. When the power grid was subjected to large-scale severe ice-covering disasters,a great number of line were severely covered with ice,and in order to ensure the safe operation of the power grid,ice melting operations must be performed simultaneously. Considering the safety constraints of the power grid,the principle of stratified zoning,line classification and meteorological factors and other constraints,different types of ice melting would be carried out for more lines. Through studying the voltage stability analysis of the operational ice-melting devices nodes in the real-time running system,the voltage strength of the existing real-time ice-melting device nodes was sorted,which lays the foundation for further research on the optimal scheduling strategy of DC ice-melting devices. Improving voltage levels,ameliorating power quality,providing specific strategies for the reactive power management of DC ice-melting devices that have been put into operation. It is of great theoretical and practical value to build a strong smart grid.
引文
[1]程改红,康义.直流融冰装置应用对电力系统运行影响[J].南方电网技术,2014,8(05):47-50.CHENG Gaihong,KANG Yi.Impact of DC deicer installation upon power system operation[J].Southern Power System Technology,2014,8(05):47-50.
[2]HORWILL C,DAVIDSON C C,GRANGER M,et al.An application of HVDC to the de-icing of transmission lines[C]//Proceedings of IEEE PES Transmission and Distribution Confrence and Exhibition,Dallas:TX,USA,2006.
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[5]陆佳政,朱思国,李波,等.兼具无功补偿与有源滤波功能的新型融冰装置[J].高电压技术,2016,42(07):2207-2214.LU Jiazheng,ZHU Siguo,LI Bo,et al.State key laboratory of disaster prevention and reduction for power transmission equipment[J].High Voltage Engineering,2016,42(07):2207-2214.
[6]李妍红,王奇.500 k V独山变电站直流融冰兼SVC装置经济运行研究[J].电力电容器与无功补偿,2012,33(06):9-16LI Yanhong,WANG Qi.Research on economic operation of DC Deicer and SVC device in 500 k V Dushan substation[J].Power Capacitors,2012,33(06):9-16.
[7]刘豪,周海.直流融冰兼SVC装置技术应用研究[J].贵州电力技术,2014,17(08):6-7.LIU Hao,ZHOU Hai.The application research of DC melting ice and SVC devices technique[J].Guizhou Electric Power Technology,2014,17(08):6-7.
[8]赵国帅,李兴源,傅闯等.线路交直流融冰技术综述[J].电力系统保护与控制,2011,39(14):148-154.ZHAO Guoshuai,LI Xingyuan,FU Chuang,et al.Overview of deicing technology for transmission lines[J].Relay,2011,39(14):148-154.
[9]巢亚锋,杨力,彭晓亮等.输电线路覆冰特点及防冰技术研究综述[J].高压电器,2014,50(10):131-138.CHAO Yafeng,YANG Li,PENG Xiaoliang,et al.Review of the researches on icing characteristics of transmission lines and antiicing technologies[J].High Voltage Apparatus,2014,50(10):131-138.
[10]丁少倩,林涛,徐遐龄等.基于电压稳定裕度的电网状态脆弱性评估方法研究[J].电测与仪表,2016,53(09):62-66.DING Shaoqian,LIN Tao,et al.Research on vulnerability assessment method of grid state based on voltage security margin[J].Electrical Measurement&Instrumentation,2016,53(09):62-66.
[11]林涛,范杏元,徐遐龄.电力系统脆弱性评估方法研究综述[J].电力科学与技术学报,2010,25(04):20-24.LIN Tao,FAN Xingyuan,XU Xialing.Summary of power system vulnerability assessment methods[J].Journal of Electric Power Science and Technology,2010,25(04):20-24.
[12]谢春瑰,方菲,吕项羽,等.电网脆弱性评估方法研究[J].电网与清洁能源,2013,29(05):35-38.XIE Chunguil,FANG Fei,LV Xiangyu,et al.Research on power grid vulnerability assessment methods[J].Power System and Clean Energy,2013,29(05):35-38.
[13]阮启运,顾雪平,陆佳政,等.湖南电网220 k V线路直流融冰问题研究[J].电力系统保护与控制,2011,39(09):131-136.RUAN Qiyun,GU Xueping,LU Jiazheng,et al.Study on problem of DC ice-melting of the Hunan 220 k V power grid[J].Relay,2011,39(09):131-136.
[14]胡毅.电网大面积冰灾分析及对策探讨[J].高电压技术,2008,34(02):215-219.HU Yi.Analysis and countermeasures discussion for large area icing accident on power grid[J].High Voltage Engineering,2008,34(02):215-219.
[15]马晓红,赵立进,李巍,等.直流融冰技术在贵州电网的应用[J].南方电网技术,2009,3(05):107-110.MA Xiaohong,ZHAO Lijin,LI Wei,et al.Application of DC based De-icing technology in Guizhou power grid[J].Southern Power System Technology,2009,3(05):107-110.
[16]陈亦平,刘文涛,和识之,等.直流融冰装置在南方电网的应用分析[J].南方电网技术,2011,5(04):74-77.CHEN Yiping,LIU Wentao,HE Shizhi,et al.Analysis on the Application of DC deicer in China Southern power grid[J].Southern Power System Technology,2011,5(04):74-77.
[17]杨刚,杨奇逊,张涛等.直流融冰及无功功率补偿系统研究[J].中国电力,2016,49(01):119-126.YANG Gang,YANG Qixun,ZHANG Tao,et al.Research on DC deicing and reactive power compensation system[J].Electric Power,2016,49(01):119-126.
[18]申屠刚,程极盛,江道灼等.500 k V直流融冰兼动态无功补偿系统研发与工程试点[J].电力系统自动化,2009,33(23):75-80.SHENTU Gang,CHENG Jisheng,JIANG Daozhuo,et al.Research and pilot project of DC deicer-SVC system for 500 k V transmission lines[J].Automation of Electric Power Systems,2009,33(23):75-80.
[19]王敩青,张厚荣,罗望春,等.强寒潮下超高压输电线路直流融冰效果差异分析[J].广东电力,2016,29(12):110-114.WANG Xiaoqing,ZHANG Hourong,LUO Wangchun,et al.Analysis on differences in DC de-icing effects on EHV power transmission lines under strong cold wave weather[J].Guangdong Electric Power,2016,29(12):110-114.
[20]李伟,马佳等.在精细化气象要素下输电线路覆冰预测预警研究[J].电力大数据2018,20(02):1-7.LI Wei,MA Jia,et al.Research on prediction and warning of overhead line icing under refined meteorological elements[J].Power Systems And Big Data,2018,20(02):1-7.
[2]HORWILL C,DAVIDSON C C,GRANGER M,et al.An application of HVDC to the de-icing of transmission lines[C]//Proceedings of IEEE PES Transmission and Distribution Confrence and Exhibition,Dallas:TX,USA,2006.
[3]WALKER G R,SERNIA PC.Cascaded DC-DC converter connection of photovoltaic modules[J].IEEE Trans on Power Electronics,2004,19(04):1130-1139.
[4]HUNEAULT M,LANGHEIT C,BENNYJ,et al.A dynamic programming methodology to develop deicing strategies during ice storms by channeling load currents in transmission networks[J].IEEE Trans on Power Delivery,2005,20(02):1604-1610.
[5]陆佳政,朱思国,李波,等.兼具无功补偿与有源滤波功能的新型融冰装置[J].高电压技术,2016,42(07):2207-2214.LU Jiazheng,ZHU Siguo,LI Bo,et al.State key laboratory of disaster prevention and reduction for power transmission equipment[J].High Voltage Engineering,2016,42(07):2207-2214.
[6]李妍红,王奇.500 k V独山变电站直流融冰兼SVC装置经济运行研究[J].电力电容器与无功补偿,2012,33(06):9-16LI Yanhong,WANG Qi.Research on economic operation of DC Deicer and SVC device in 500 k V Dushan substation[J].Power Capacitors,2012,33(06):9-16.
[7]刘豪,周海.直流融冰兼SVC装置技术应用研究[J].贵州电力技术,2014,17(08):6-7.LIU Hao,ZHOU Hai.The application research of DC melting ice and SVC devices technique[J].Guizhou Electric Power Technology,2014,17(08):6-7.
[8]赵国帅,李兴源,傅闯等.线路交直流融冰技术综述[J].电力系统保护与控制,2011,39(14):148-154.ZHAO Guoshuai,LI Xingyuan,FU Chuang,et al.Overview of deicing technology for transmission lines[J].Relay,2011,39(14):148-154.
[9]巢亚锋,杨力,彭晓亮等.输电线路覆冰特点及防冰技术研究综述[J].高压电器,2014,50(10):131-138.CHAO Yafeng,YANG Li,PENG Xiaoliang,et al.Review of the researches on icing characteristics of transmission lines and antiicing technologies[J].High Voltage Apparatus,2014,50(10):131-138.
[10]丁少倩,林涛,徐遐龄等.基于电压稳定裕度的电网状态脆弱性评估方法研究[J].电测与仪表,2016,53(09):62-66.DING Shaoqian,LIN Tao,et al.Research on vulnerability assessment method of grid state based on voltage security margin[J].Electrical Measurement&Instrumentation,2016,53(09):62-66.
[11]林涛,范杏元,徐遐龄.电力系统脆弱性评估方法研究综述[J].电力科学与技术学报,2010,25(04):20-24.LIN Tao,FAN Xingyuan,XU Xialing.Summary of power system vulnerability assessment methods[J].Journal of Electric Power Science and Technology,2010,25(04):20-24.
[12]谢春瑰,方菲,吕项羽,等.电网脆弱性评估方法研究[J].电网与清洁能源,2013,29(05):35-38.XIE Chunguil,FANG Fei,LV Xiangyu,et al.Research on power grid vulnerability assessment methods[J].Power System and Clean Energy,2013,29(05):35-38.
[13]阮启运,顾雪平,陆佳政,等.湖南电网220 k V线路直流融冰问题研究[J].电力系统保护与控制,2011,39(09):131-136.RUAN Qiyun,GU Xueping,LU Jiazheng,et al.Study on problem of DC ice-melting of the Hunan 220 k V power grid[J].Relay,2011,39(09):131-136.
[14]胡毅.电网大面积冰灾分析及对策探讨[J].高电压技术,2008,34(02):215-219.HU Yi.Analysis and countermeasures discussion for large area icing accident on power grid[J].High Voltage Engineering,2008,34(02):215-219.
[15]马晓红,赵立进,李巍,等.直流融冰技术在贵州电网的应用[J].南方电网技术,2009,3(05):107-110.MA Xiaohong,ZHAO Lijin,LI Wei,et al.Application of DC based De-icing technology in Guizhou power grid[J].Southern Power System Technology,2009,3(05):107-110.
[16]陈亦平,刘文涛,和识之,等.直流融冰装置在南方电网的应用分析[J].南方电网技术,2011,5(04):74-77.CHEN Yiping,LIU Wentao,HE Shizhi,et al.Analysis on the Application of DC deicer in China Southern power grid[J].Southern Power System Technology,2011,5(04):74-77.
[17]杨刚,杨奇逊,张涛等.直流融冰及无功功率补偿系统研究[J].中国电力,2016,49(01):119-126.YANG Gang,YANG Qixun,ZHANG Tao,et al.Research on DC deicing and reactive power compensation system[J].Electric Power,2016,49(01):119-126.
[18]申屠刚,程极盛,江道灼等.500 k V直流融冰兼动态无功补偿系统研发与工程试点[J].电力系统自动化,2009,33(23):75-80.SHENTU Gang,CHENG Jisheng,JIANG Daozhuo,et al.Research and pilot project of DC deicer-SVC system for 500 k V transmission lines[J].Automation of Electric Power Systems,2009,33(23):75-80.
[19]王敩青,张厚荣,罗望春,等.强寒潮下超高压输电线路直流融冰效果差异分析[J].广东电力,2016,29(12):110-114.WANG Xiaoqing,ZHANG Hourong,LUO Wangchun,et al.Analysis on differences in DC de-icing effects on EHV power transmission lines under strong cold wave weather[J].Guangdong Electric Power,2016,29(12):110-114.
[20]李伟,马佳等.在精细化气象要素下输电线路覆冰预测预警研究[J].电力大数据2018,20(02):1-7.LI Wei,MA Jia,et al.Research on prediction and warning of overhead line icing under refined meteorological elements[J].Power Systems And Big Data,2018,20(02):1-7.