输电线路输送容量动态增容研究
Researches on the Dynamic Capacity-increase of the Transmission Line
投稿时间:2020-02-27  修订日期:2020-02-27
DOI:
中文关键词: 输送容量  动态增容  导线温度  自动调压  在线监测
英文关键词: transmission capacity  dynamic capacity-increase  conductor temperature  automatic voltage control  real-time monitoring
基金项目:国家自然科学基金(11404411),教育部产学合作协同育人项目,中南民族大学校级教学项目(JYSHX17019)
作者单位E-mail
姚文俊 中南民族大学 电子信息工程学院 yaowj@mail.scuec.edu.cn 
曹洪强 国网电力科学研究院 武汉南瑞有限责任公司  
邓鹤鸣 国网电力科学研究院 武汉南瑞有限责任公司  
王 刚 国网电力科学研究院 武汉南瑞有限责任公司  
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中文摘要:
      为解决苍九一二线由10kV改造为20kV线路施工过程中,存在输送导线温度实时在线测量误差大和线路输送效率不高的问题,将光纤光栅测温技术运用到输电线路的在线测温,并根据测得的输电线路内部和外部环境温度,建立了导线载流量计算数学模型,得到导线能够承受的最大载流量。后将计算结果运用在苍九一二线的施工上,通过远程控制有载可调变压器和无功补偿装置,使运行负荷由700A左右提高到1400A,输送容量增加近一倍,同时这两条线路的供电能力在现有的基础上提高一倍,超过原线路的额定值的50%.
英文摘要:
      To solve the large errors of the real-time temperature measurements and increase transmission efficiency in the Nanchang-Jiujiang one and two line rebuilding from 10kV to 20kV, the temperature measurement technology is applied to the transmission lines by the optical fiber grating sense system. The calculation model of dynamicScapacitySincreasing is set up and the maximum carrying capacity is obtained by theStemperatureSofSthe measuredStransmission line and externalSenvironment. When the results are applied to the Nanchang-Jiujiang one and two line construction, StheStransmissionScapacitySofSoverheadSwires is improved from about 700A to 1400A and has nearly doubled by the remote control on-load adjustable transformer and reactive power compensation device. TheSpower supplyScapabilitySofSdistributionSnetworkSwill be doubled and is more than 50% of the original line rating.
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