特高压与超高压交流输电能力及经济比较研究
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摘要
自我国交流特高压工程规划和建设以来,国内对特高压交流输电的输电能力、经济性、实施效果等方面存在较大的争议。本文通过建立特高压交流与超高压交流点对网和网对网的输电系统仿真模型,采用理论分析和仿真计算相结合的技术手段,针对不同输电距离和系统强度情况,从热稳极限、暂稳极限角度对比分析了特高压交流与超高压交流输电线路的送电能力,并以送受端同样系统强度下相同输电距离输送同等容量电力为例,对比分析了特高压交流输电与超高压交流输电的经济性,从而研究特高压与超高压交流输电在输电能力和经济性方面的优劣。研究表明,在相同的输电距离情况下,特高压交流的最大输电能力是超高压交流输电的2~4倍;相同输电容量下中短距离输电时,超高压交流输电经济性优于交流特高压输电。
Since the planning and construction of the UHV AC transmission project in China,there has been considerable controversy over the transmission capacity,economy,and implementation effects of UHV AC transmission. This paper establishes a transmission power system simulation model for UHV AC and UHV AC point-to-grid and grid-to-grid transmissions. It uses theoretical analysis and simulation calculations to combine technical means,according to the different transmission distance and the system strength,the power supply capacity of UHV AC and UHV AC transmission lines is analyzed from the thermal stability limit and the temporary stability limit angle,taking the same transmission distance under the same system strength for sending end and receiving end as the example,the transmission capacity of the same capacity is taken as an example,the economy of UHV AC transmission and UHV AC transmission is compared and analyzed,so as to study the advantages and disadvantages of UHV and UHV AC transmission in terms of transmission capacity and economy. Research shows that the maximum transmission capacity of UHVAC transmission is 2 ～ 4 times of EHVAC transmission under the same transmission distance,and EHV AC transmission is superior to UHV AC transmission in the same transmission capacity with medium and short range transmission.
Since the planning and construction of the UHV AC transmission project in China,there has been considerable controversy over the transmission capacity,economy,and implementation effects of UHV AC transmission. This paper establishes a transmission power system simulation model for UHV AC and UHV AC point-to-grid and grid-to-grid transmissions. It uses theoretical analysis and simulation calculations to combine technical means,according to the different transmission distance and the system strength,the power supply capacity of UHV AC and UHV AC transmission lines is analyzed from the thermal stability limit and the temporary stability limit angle,taking the same transmission distance under the same system strength for sending end and receiving end as the example,the transmission capacity of the same capacity is taken as an example,the economy of UHV AC transmission and UHV AC transmission is compared and analyzed,so as to study the advantages and disadvantages of UHV and UHV AC transmission in terms of transmission capacity and economy. Research shows that the maximum transmission capacity of UHVAC transmission is 2 ～ 4 times of EHVAC transmission under the same transmission distance,and EHV AC transmission is superior to UHV AC transmission in the same transmission capacity with medium and short range transmission.
引文
[1]CANDAS M,MERIC O S.The Application of Ultra High Voltage in the World[J].Journal of Power&Energy Engineering,2015,03(04):453-457.
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[12]王仲鸿.交流特高压在中国应用的经济和安全分析研究[J].电力自动化设备,2007,27(10):1-4.WANG Zhonghong.Economy and security analysis of AC UHV in China[J].Electric Power Automation Equipment,2007,27(10):1-4.
[13]周浩,钟一俊.特高压交、直流输电的适用场合及其技术比较[J].电力自动化设备,2007,27(05):6-12,39.ZHOU Hao,ZHONG Yijun.Applicable occasions of UHV AC/UHV DC transmission and their technology comparisons in China[J].Electric Power Automation Equipment,2007,27(05):6-12,39.
[14]赵彪,史雪飞,孙珂,等.特高压输电经济性实例分析[J].中国电机工程学报,2009,29(22):8-11.ZHAO Biao,SHI Xuefei,SUN Ke,et al.Economic analysis of the instance for UHV AC transmission[J].Proceedings of the CSEE,2009,29(22):8-11.
[15]郭强,张运洲,吕健.我国未来同步电网构建研究[J].电网技术,2005,29(22):14-18,60.GUO Qiang,ZHANG Yunzhou,LV Jian.Study on scheme for structure and construction of synchronous power grid in China from 2010 to 2020[J].Power System Technology,2005,29(22):14-18+60.
[16]徐政.超、特高压交流输电系统的输送能力分析[J].电网技术,1995(08):7-12.Xu Zheng.EHV/UHV AC transmission capability analysis[J].Power System Technology,1995(08):7-12.
[17]柴旭峥,梁曦东,曾嵘.交流输电线路输送能力曲线计算方法的改进[J].电网技术,2005,29(24):20-24.CHAI Xuzheng,LIANG Xidong,ZENG Rong.An improved calculation method for power-transmitting capability curve of AC transmission line[J].Power System Technology,2 0 0 5,2 9(2 4):2 0-2 4.
[18]张锟.特高压变电站无功补偿研究[J].贵州电力技术,2016,19(02):503-507.Zhang Kun.Research of UHV reactive power compensation[J].Guizhou Electric Power Technology,2016,19(02):503-507.
[19]浙江大学发电教研组.直流输电(第二版)[M].北京:水利电力出版社,1985.
[20]电力规划设计总院.电网工程限额设计控制指标(2014年水平)[M].北京:中国电力出版社,2015.
[21][21]王晓勇,田明光,张延童,等.±800 k V特高压直流输电光纤通信工程中OPGW的选型设计[J].广东电力,2017,30(11):51-55.WANG Xiaoyong,TIAN Mingguan,ZHANG Yantong,et al.Type selection design of OPGW for±800 k V ultra-high voltage DCtransmission optical fiber communication engineering[J].Guangdong Electric Power,2017,30(11):51-55.
[22]李孝林.准东-华东±1100 k V特高压直流输电线路工程甘肃北段导线选型分析[J].内蒙古电力技术,2016,34(01):25-31.LI Xiaolin.Transmission line type selection analysis on ZhundongHuadong±1100 k V UHV DC transmission project in north part of Gansu Province[J].Inner Mongolia Electric Power,2016,34(01):25-31.
[2]MEMBER K H S,MEMBER H I S.Current trends of international standardization activities on ultra-high-voltage technologies[J].Ieej Transactions on Electrical&Electronic Engineering,2009,4(01):58-61.
[3]GUANG-FAN L I,WANG X N,PENG L I,et al.Insulation Level and Test Technology of 1000 k V Power Transformers[J].Power System Technology,2008,32(3):1-6.
[4]HAMMONS T J,LESCALE V F,UECKER K,et al.State of the art in ultrahigh-voltage transmission[J].Proceedings of the IEEE,2012,100(02):360-390.
[5]吴敬儒徐永禧.我国特高压交流输电发展前景[J].电网技术,2005,29(03):1-4.WU Jingru XU Yongxi.Development prospect of UHV AC power transmission in China[J].Power System Technology,2005,29(03):1-4.
[6]舒印彪.1000 k V交流特高压输电技术的研究与应用[J].电网技术,2005,29(19):T1-T6.SHU Yinbiao.1000 k V UHV AC technology research and application[J].Power System Technology,2005,29(19):T1-T6.
[7]杜至刚.中国特高压电网发展战略规划研究[D].济南:山东大学,2008.DU Zhigang.Study on strategic planning of ultra-high voltage grid development in China[D].Jinan:Shandong University,2008.
[8]舒印彪,张文亮.特高压输电若干关键技术研究[J].中国电机工程学报,2007,27(31):1-6.Shu Yinbiao,Zhang Wenliang.Research of key technologies for UHV transmission[J].Proceedings of the CSEE,2007,27(31):1-6.
[9]万启发,陈勇,谷莉莉,等.特高压交流输电工程导线截面及分裂形式研究[J].高电压技术,2008,34(03):432-437.WAN Qifa,CHEN Yong,GU Lili,et al.Research on section and split way of conductors for UHV AC transmission project[J].High Voltage Engineering,2008,34(03):432-437.
[10]张文亮,吴维宁,胡毅.特高压输电技术的研究与我国电网的发展[J].高电压技术,2003,29(09):16-18.ZHANG Wenliang,WU Weining,HU Yi.Research on UHVtransmission technology and development of power grid in China[J].High Voltage Engineering,2 0 0 3,2 9(0 9):1 6-1 8.
[11]张文亮,胡毅.发展特高压交流输电促进全国联网[J].高电压技术,2003,29(08):20-22.ZHANG Wenliang,HU Yi.To develop UHV AC power transmission and advance the united power network in China[J].High Voltage Engineering,2003,29(08):20-22.
[12]王仲鸿.交流特高压在中国应用的经济和安全分析研究[J].电力自动化设备,2007,27(10):1-4.WANG Zhonghong.Economy and security analysis of AC UHV in China[J].Electric Power Automation Equipment,2007,27(10):1-4.
[13]周浩,钟一俊.特高压交、直流输电的适用场合及其技术比较[J].电力自动化设备,2007,27(05):6-12,39.ZHOU Hao,ZHONG Yijun.Applicable occasions of UHV AC/UHV DC transmission and their technology comparisons in China[J].Electric Power Automation Equipment,2007,27(05):6-12,39.
[14]赵彪,史雪飞,孙珂,等.特高压输电经济性实例分析[J].中国电机工程学报,2009,29(22):8-11.ZHAO Biao,SHI Xuefei,SUN Ke,et al.Economic analysis of the instance for UHV AC transmission[J].Proceedings of the CSEE,2009,29(22):8-11.
[15]郭强,张运洲,吕健.我国未来同步电网构建研究[J].电网技术,2005,29(22):14-18,60.GUO Qiang,ZHANG Yunzhou,LV Jian.Study on scheme for structure and construction of synchronous power grid in China from 2010 to 2020[J].Power System Technology,2005,29(22):14-18+60.
[16]徐政.超、特高压交流输电系统的输送能力分析[J].电网技术,1995(08):7-12.Xu Zheng.EHV/UHV AC transmission capability analysis[J].Power System Technology,1995(08):7-12.
[17]柴旭峥,梁曦东,曾嵘.交流输电线路输送能力曲线计算方法的改进[J].电网技术,2005,29(24):20-24.CHAI Xuzheng,LIANG Xidong,ZENG Rong.An improved calculation method for power-transmitting capability curve of AC transmission line[J].Power System Technology,2 0 0 5,2 9(2 4):2 0-2 4.
[18]张锟.特高压变电站无功补偿研究[J].贵州电力技术,2016,19(02):503-507.Zhang Kun.Research of UHV reactive power compensation[J].Guizhou Electric Power Technology,2016,19(02):503-507.
[19]浙江大学发电教研组.直流输电(第二版)[M].北京:水利电力出版社,1985.
[20]电力规划设计总院.电网工程限额设计控制指标(2014年水平)[M].北京:中国电力出版社,2015.
[21][21]王晓勇,田明光,张延童,等.±800 k V特高压直流输电光纤通信工程中OPGW的选型设计[J].广东电力,2017,30(11):51-55.WANG Xiaoyong,TIAN Mingguan,ZHANG Yantong,et al.Type selection design of OPGW for±800 k V ultra-high voltage DCtransmission optical fiber communication engineering[J].Guangdong Electric Power,2017,30(11):51-55.
[22]李孝林.准东-华东±1100 k V特高压直流输电线路工程甘肃北段导线选型分析[J].内蒙古电力技术,2016,34(01):25-31.LI Xiaolin.Transmission line type selection analysis on ZhundongHuadong±1100 k V UHV DC transmission project in north part of Gansu Province[J].Inner Mongolia Electric Power,2016,34(01):25-31.