地市级电网企业分区与分压线损关系研究
刘文军^1，2，陈剑^1，2，李湘华^1，2，曾昊旻³，林志勇^1，2，贾东强⁴，肖振锋^1，2，邱远军⁵
（1. 国网湖南省电力有限公司经济技术研究院，湖南 长沙 410007；2. 能源互联网供需运营湖南省重点实验室，湖南 长沙 410007；
3. 湖南省送变电工程有限公司，湖南 长沙 410035；4. 国网北京市电力公司电力科学研究院，北京 100075；
5. 仙桃市第一人民医院，湖北 仙桃 433099）
摘要： 线损是电能从发电厂向用户传输的过程中形成的电能损耗。各电网企业都高度重视线损的分区管理与分压管
理。为了弄清楚地市级电网企业分区线损与分压线损之间的关系，切实提高线损管理水平，首先分别给出了地市级电网
企业分区线损、各电压等级分压线损的计算方法；接着对地市级电网企业分区线损和分压线损之间的关系进行了严格的
公式推导，证明了地市级电网企业的分区线损等于各电压等级的分压线损之和；最后通过电力大数据进一步验证了推导
结论的正确性。该结论有助于通过各电压等级分压线损之和来校核地市级电网企业分区线损计算结果的准确性，为线损
精益化管理提供技术支撑。
关键词： 电力大数据；线损；电能损耗；线损管理；地市级电网企业；分区线损；分压线损
中图分类号： TM744⁺.1     文献标识码： A     文章编号： 2095-0802-(2022)01-0015-03
Study on Relationship between Regional and Different Voltage Level's Line Loss of City-level
Power Grid Companies
LIU Wenjun^1,2, CHEN Jian^1,2, LI Xianghua^1,2, ZENG Haomin³, LIN Zhiyong^1,2, JIA Dongqiang⁴,
XIAO Zhenfeng^1,2, QIU Yuanjun⁵
(1. Economical & Technical Research Institute, State Grid Hunan Electric Power Co., Ltd., Changsha 410007, Hunan, China;
2. Hunan Key Laboratory of Energy Internet Supply-demand and Operation, Changsha 410007, Hunan, China; 3. Hunan Power
Transmission Engineering Co., Ltd., Changsha 410035, Hunan, China; 4. Electric Power Science Research Institute, State Grid
Beijing Electric Power Company, Beijing 100075, China; 5. Xiantao First People's Hospital, Xiantao 433099, Hubei, China)
Abstract: Line loss is the electrical energy loss during the electrical energy transmitted from the power plant to the user.
Regional line loss management and different voltage level's line loss management are highly valued by power grid companies. In
order to clarify the relationship between the regional and different voltage level's line loss of city-level power grid companies, and
effectively improve the line loss management level, this paper firstly gave the calculation method of the regional and different
voltage level's line loss of city-level power grid companies respectively, and then derived the rigorous formula for the relationship
between the regional and different voltage level's line loss of city-level power grid companies, which proved that the regional line
loss of city-level power grid company is equal to the sum of the different voltage level's line loss. Finally, it further verified the
correctness of the deduced conclusion through electric power big data. The conclusion is helpful to verify the correctness of the
regional line loss calculation result of city-level power grid companies by the sum of the different voltage level's line loss,
providing a technical support for the line loss lean management.

Key words: electric power big data; line loss; electrical energy loss; line loss management; city-level power grid company;
regional line loss; different voltage level's line loss