基于粒子群优化算法的特高压输电线路覆冰不平衡张力计算Calculation of Unbalanced Tension of Iced UHV Transmission Line Based on Particle Swarm Optimization
吴俊俊,宋刚,卢彬芳
WU Junjun,SONG Gang,LU Binfang
摘要(Abstract)：
输电线路不均匀覆冰会导致铁塔两侧出现不平衡张力,铁塔受到弯矩和扭矩,导致输电线路倒塔和损坏。不平衡张力计算模型是解一个多维非线性方程组,一般采用"试凑法"进行迭代求解,该算法对初值和迭代步长选取要求高,经常无法收敛。采用粒子群优化算法进行求解,无需设置初值和迭代步长,收敛性强,可以得到耐张段内各档应力、绝缘子串偏移的高精度解。通过对1 000 k V特高压输电线路模拟计算,得出档距、高差、安全系数和悬垂串长对不平衡张力的影响规律,为特高压输电线路优化设计和安全运行提供理论依据。
The unbalanced tension of suspension tower on different sides caused by uneven icing makes the tower under bending and twisting force and results in transmission line tower collapse and damage. The unbalanced tension calculation model is for solving a multidimensional nonlinear equation, and quite often "trial and error" method is employed for iteration solution. This method has strict requirement on the initial value and the iteration step choice, often failing to converge. In this paper, the particle swarm optimization(PSO)algorithm is used to solve the problem, and there is no need to set the initial value and the iteration step, and it can converge well. Through this method high precision of wire tension and insulator string′ s offset values within a strain section is obtained. By the simulation calculation of 1 000 kV UHV transmission line, rule of span, elevation difference, safety factor and the suspension string length′s effects on the unbalanced tension is concluded, which provides the basis for the optimization design and operation safety of UHV transmission line.
关键词(KeyWords)：
特高压输电线路;不平衡张力;粒子群优化算法
UHV transmission line;unbalanced tension;PSO
基金项目(Foundation): 中国能源建设股份有限公司科技项目(CEEC2016-KJ06)
作者(Author):
吴俊俊,宋刚,卢彬芳
WU Junjun,SONG Gang,LU Binfang
DOI: 10.19585/j.zjdl.201903011
参考文献(References)：
- [1]李正,杨靖波,黄璜,等.2008年输电线路冰灾倒塔原因分析[J].电网技术,2009,33(2):31-35.
- [2]李庆峰,范峥,吴穹,等.全国输电线路覆冰情况调研及事故分析[J].电网技术,2008,32(9):33-36.
- [3]中华人民共和国国家能源局.重覆冰架空输电线路设计技术规程:DL/T 5440-2009[S].北京:中国电力出版社,2009.
- [4]张殿生.电力工程高压送电线路设计手册[M].2版.北京:中国电力出版社,2004:198-207.
- [5]张子引,刘学军.架空输电线路连续档不平衡张力计算[J].电力建设,2009,30(5):32-34.
- [6]李军,彭谦,康东升.改变步长的输电线路不平衡张力计算方法[J].电力建设,2010,31(12):26-29.
- [7]邵天晓.架空送电线路的电线力学计算[M].2版.北京:中国电力出版社,2003:221-234.
- [8]程思勇,薛志方.覆冰不平衡张力计算分析[J].电网与清洁能源,2011,27(2):10-13.
- [9]薛志方,程思勇.置信域算法在输电线路覆冰不平衡张力计算中的应用及不平衡张力的影响因素[J].电网技术,2012,36(4):225-228.
- [10]韩军科,杨靖波,李清华,杨风利.超/特高压交流同塔多回输电线路覆冰不平衡张力分析[J].电网技术,2011,35(12):33-37.
- [11]杨风利,杨靖波,张子富.重覆冰区特高压悬垂型杆塔不平衡张力分析[J].电网技术,2012,36(3):234-240.
- [12]KENNEDY J,EBERHART R.Particle swarm optimization[A].Proceedings of IEEE Conference on Neural Networks[C].Perth,Australia,1995(4):1942-1948.
- [13]TRELEA I C.The particle swarm optimization algorithm:convergence analysis and parameter selection[J].Information Processing Letters,2003,85(6):317-325.
- [14]杨维,李歧强.粒子群优化算法综述[J].中国工程科学,2004,6(5):87-94.
- [15]李建勇.粒子群优化算法研究[D].杭州:浙江大学,2004.
- [16]张宪,苑津莎,杨薛明,等.基于粒子群算法的配电网网架规划[J].华北电力大学学报,2006,33(3):14-17.
- [17]唐剑东,熊信银,吴耀武.基于改进PSO算法的电力系统无功优化[J].电力自动化设备,2004,24(7):81-84.
- [18]CHIN A K,DIPTI S.Particle swarm optimizaio-based approach for generator maintenance scheduling[A].Proceed ings of the IEEE Swarm Intelligence Symposium 2003[C].Indiana,USA,2003:167-173.
- [19]刘庆丰.微地形对输电线路不平衡张力的影响[J].电力建设,2011,32(10):38-40.
- [20]曹双和,陈百炼,赵立进,等.导线覆冰厚度线径订正系数的理论计算分析[J].电力大数据,2018,21(9):71-79.
- [21]陈百炼,曹双和,李昊.雨雾淞导线覆冰理论模型数值模拟研究[J].电力大数据,2018,21(8):73-81.
- [22]赵胜利,曾健,苏耀国,等.复合材料输电杆塔结构受力分析[J].电网与清洁能源,2018,34(2):23-29.
- [23]李伟,马佳,王世蓉,等.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,2018,21(2):1-7.
- [24]刘胜波,阳林,郝艳捧,等.中国沿海地区电网覆冰灾害风险评估[J].广东电力,2017,30(12):1-6.
- [25]牛彪,任建峰,米康民.500 kV同塔双回线路抗冰能力分析及防治措施研究[J].山西电力,2017(4):35-38.
- [26]谢云云,金颖,黄琳雁,等.适用于有高差线路的覆冰输电导线ANSYS找形方法[J].电力工程技术,2017,36(2):9-13.