外部铁磁物质对电力金具能耗测量的影响Influence of external ferromagnetic substances on energy loss measurement of electric power fittings
赵旭阳,叶成,杜昭启,林雪,吴芳芳,章益
ZHAO Xuyang,YE Cheng,DU Zhaoqi,LIN Xue,WU Fangfang,ZHANG Yi
摘要(Abstract):
IEEE架空导线能耗测量方法标准提出应尽量减少铁磁物质对于导线能耗测量结果的影响,避免铁磁物质对电力金具能耗测量的干扰。通过有限元仿真模拟输电导线不同通流能力、外部铁磁物质与导线不同间距对电力金具能耗测量的影响,并进行了试验验证。结果表明:铁磁物质的存在会导致电力金具能耗测量结果大于无外部铁磁物质电力金具能耗测量结果,且随着导线电流升高铁磁物质对电力金具能耗测量结果影响将增大;开展线路金具能耗测量试验时,导线500 mm范围内不应存在铁磁物质。研究成果可用于减小铁磁物质对电力金具能耗测量结果的干扰。
IEEE standards of energy loss measurement method for overhead conductors suggest minimizing the influence of ferromagnetic substances on energy loss measurement of conductors and averting their interference in energy loss measurement of electric power fittings. Finite element simulation was used to estimate and by test verify the influence of through-flow capacities,external ferromagnetic substances and conductor spaces on energy loss measurement of electric power fittings. The results show that the external ferromagnetic substances can give rise to increase in the measured energy loss of electric power fittings;with the rise of conductor current,the ferromagnetic substances can pose a more significant influence on energy loss measurement of the fittings;during energy loss measurement test of line fittings,there should be no ferromagnetic substance within 500 millimeters of conductors. The research discovery helps mitigate the interference of ferromagnetic substances to energy loss measurement results of electric power fittings.
关键词(KeyWords):
电力金具;能耗测量;有限元;外部铁磁物质
electric power fittings;energy loss test;finite element;external ferromagnetic substances
基金项目(Foundation): 国网浙江省电力有限公司科技项目(2020FD06)
作者(Author):
赵旭阳,叶成,杜昭启,林雪,吴芳芳,章益
ZHAO Xuyang,YE Cheng,DU Zhaoqi,LIN Xue,WU Fangfang,ZHANG Yi
DOI: 10.19585/j.zjdl.202207010
参考文献(References):
- [1]董吉谔.电力金具手册[M].3版.北京:中国电力出版社,2010.
- [2]徐乃管,吴渝生,白中琪.论开发应用节能金具——铝合金线夹的重要意义[J].电力建设,1998,19(1):11-13.
- [3]陆松华.Fe-Mn基奥氏体无磁钢在节能电力金具上的应用研究[D].镇江:江苏大学,2006.
- [4] Overhead lines-Requirements and tests for fitting:IEC61284—1997[S].
- [5]余虹云.电力金具能耗与节能的探讨[J].浙江电力,1999,18(4):58-59.
- [6] LI T,WU T,LIU L,et al.Simulation and experiment research of fittings power loss in high voltage transmission line[C]//2017 1st International Conference on Electrical Materials and Power Equipment:IEEE,2017:1-4.
- [7]程云堂,钱尼华,陈韶昱,等.复合材料电力金具能耗仿真与试验分析[J].浙江电力,2015,34(1):27-30.
- [8]叶成,余虹云,倪国灿,等.浅析《电力金具能耗测试与节能技术评价要求》[J].浙江电力,2016,35(11):72-75.
- [9]国家能源局.电力金具能耗测试与节能技术评价要求:DL/T 1288—2013[S].北京:中国电力出版社,2009.
- [10] IEEE Guide for Energy Efficiency Technology Evaluation of Electric Power Fittings:IEEE 2747—2020[S].
- [11] IEEE Standard for Test Method for Energy Loss of Overhead Conductor:IEEE 2772—2021[S].
- [12]冯慈璋,马西奎.工程电磁场理论[M].北京:高等教育出版社,2007.
- [13]叶成,余虹云,连云飞.架空线路金具能耗研究[J].浙江电力,2019,38(3):76-81.
- [14] MORGAN V T. Electrical characteristics of steel-cored aluminium conductors[J].Proceedings of the Institution of Electrical Engineers.1965,112(2):325.
- [15]赵博,张洪亮.Ansoft12在工程电磁场中的应用[M].北京:中国水利水电出版社,2010.
- 电力金具
- 能耗测量
- 有限元
- 外部铁磁物质
electric power fittings - energy loss test
- finite element
- external ferromagnetic substances