220 kV变电站的智能汇控小室优化安装方案  

Optimized Installation Scheme of Intelligent Control Chamber in 220 kV Substation

作　　者：李春兰 李明治 张亚飞 王洁 王海杨 LI Chun-lan;LI Ming-zhi;ZHANG Ya-fei;WANG Jie;WANG Hai-yang(College of Mechanical and Electrical Engineering,Xinjiang Agricultural University,Wulumuqi 830000,China;Powergrid Xinjiang Corporation Institute of Electric Power Science,Wulumuqi 830000,China)

机构地区：[1]新疆农业大学机电工程学院,乌鲁木齐830000 [2]国网新疆电力有限公司电力科学研究院,乌鲁木齐830000

出　　处：《科学技术与工程》2021年第1期180-188,共9页Science Technology and Engineering

基　　金：新疆维吾尔自治区自然科学基金(2018D01B24)。

摘　　要：针对新疆地区智能汇控小室损坏率高,使用寿命短和存在拒动、误动的问题,提出220 kV汇控小室优化研究方案。利用建模软件构建了新疆某地区220 kV变电站的三维模型,基于有限元方法进行变电站稳态电磁场分布研究,仿真数据与现场试验数据比较结果验证了该电学模型的准确性,对该模型采用空间寻优法获得智能汇控小室的最优安装位置方案。228个测点的工频电磁场仿真、试验对比数据平均误差为5.3%,满足变电站电压允许波动7%的要求;在平行进出线(X)、垂直母线(Y)以及安装高度(Z)方向上工频电磁场衰减速度的正交试验表明,Y方向衰减速度最为显著,220/110 kV侧分别在(2,10,2)m和(1.5,6,2)m处获得最佳安装位置方案。研究结果为进一步研究工频电磁场的变化特性和变电站二次设备安装路径优化提供一定的理论参考。Aiming at the problems of high damage rate,short service life,and misoperation of intelligent control room in Xinjiang region,NW China,an optimization design of 220 kV centralized control room was proposed.A three-dimensional model of a 220 kV substation was built up by software modeling,and the finite element method was used to study the steady state electromagnetic field distribution in the substation.Simulation data and field test data were compared to verify the accuracy of the electrical model.A spatial optimization method was used to obtain the optimal installation location for the intelligent control chamber.The mean error of power frequency electromagnetic field simulation and experimental comparison data at 228 measuring points was 5.3%,which can meet the requirement of 7% tolerance of substation voltage.The orthogonal experiments of the attenuation velocity of the power frequency electromagnetic field in the direction of parallel input and output line(X direction),vertical bus line(Y direction),and mounting height(Z direction)show that the rate of decay is most significant in the Y direction in 220/110 kV side at the point of(2,10,2)m and(1.5,6,2)m for the optimal installation scheme.The results provide some theoretical references for further research on the variation of power frequency electromagnetic field and on the optimization of installation path of secondary equipment in substation.

关 键 词：工频电磁场 电磁兼容 电磁干扰 有限元 优化仿真 

分 类 号：TM631[电气工程—电力系统及自动化]