|Table of Contents|

Lumped parameter identification of overhead line thermal circuit model based on linear regression

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2015年03期
Page:
335-
Research Field:
Publishing date:

Info

Title:
Lumped parameter identification of overhead line thermal circuit model based on linear regression
Author(s):
Liu YafangYing ZhanfengZhang XudongFeng KaiWu Junji
School of Energy and Power Engineering,NUST,Nanjing 210094,China
Keywords:
linear regression overhead line thermal circuit model temperature rise experimental platform thermal dynamic processes thermal resistance thermal capacity
PACS:
TM244.2
DOI:
-
Abstract:
To improve the accuracy of an overhead line thermal circuit model,a temperature rise experimental platform of overhead lines is designed.The thermal dynamic processes of LGJ-240/30 and LGJ-400/35 with different current-carrying are measured under natural convection conditions.A linear regression method is proposed to identify the lumped parameter of the overhead line thermal circuit model.A function is established to calculate the overhead line thermal circuit model parameters by current.The identification results show that the identified values of thermal resistance are close to those of the traditional method,and decrease with the increase of current; the identified values of thermal capacity are different from those of the traditional method,and show no trend with the increase of current; the identified thermal resistance and thermal capacity are used to solve the overhead line thermal circuit model,and the maximum relative error of model responses is less than 1.28%,and the accuracy of the proposed method is much better than that of the traditional method.

References:

[1] 王孔森,盛戈皞,王葵,等.输电线路动态增容运行风险评估[J].电力系统自动化,2011,35(23):11-15,21.
Wang Kongsen,Sheng Gehao,Wang Kui,et al.Operation risk assessment of a transmission line dynamic line rating system[J].Automation of Electric Power Systems,2011,35(23):11-15,21.
[2]IEEE Standard 738-1993,IEEE standard for calculating the current-temperature relationship of bare overhead conductors[S].
[3]Davis M W.A new thermal rating approach:The real time thermal rating system for strategic overhead conductor transmission lines—Part I:General description and justification of the real time thermal rating system[J].IEEE Trans on Power Apparatus and Systems,1977,96(3):803-809.
[4]Davis M W.A new thermal rating approach:The real time thermal rating system for strategic overhead conductor transmission lines—Part Ⅱ:Steady state thermal rating program[J].IEEE Trans on Power Apparatus and Systems,1977,96(3):810-825.
[5]Morgan V T.Rating of bare overhead conductors for continuous currents[J].Proceedings of the IEEE,1967,114(10):1473-1482.
[6]Morgan V T.The thermal rating of overhead-line conductors—Part 1:The steady-state thermal model[J].Electric Power System Research,1982,5:119-139.
[7]刘刚,阮班义,张鸣.架空导线动态增容的热路法暂态模型[J].电力系统自动化,2012,36(16):58-62,123.
Liu Gang,Ruan Banyi,Zhang Ming.A transient model for overhead transmission line dynamic rating based on thermal circuit method[J].Automation of Electric Power Systems,2012,36(16):58-62,123.
[8]刘刚,阮班义,林杰,等.架空导线动态增容的热路法稳态模型[J].高电压技术,2013,39(5):1107-1113.
Liu Gang,Ruan Banyi,Lin Jie,et al.Steady-state model of thermal circuit method for dynamic overhead lines rating[J].High Voltage Engineering,2013,39(5):1107-1113.
[9]孙凯祺,刘浩,傅晨钊,等.220kV瓷柱式断路器修正热路模型研究[J].华东电力,2013,6(6):1215-1219.
Sun Kaiqi,Liu Hao,Fu Chenzhao,et al.Modified thermal circuit model for 220kV porcelain stanchion-type circuit breaker[J].East China Electric Power,2013,6(6):1215-1219.
[10]Hilal A,Raulet M A,Martin C.Magnetic components dynamic modeling with thermal coupling for circuit simulators[J].IEEE Transactions on Magnetics,2014,50(4):1-4.
[11]Zhang Kun,Cheng M C.Thermal circuit for SOI MOSFET structure accounting for nonisothermal effects[J].IEEE Transactions on Electron Devices,2010,57(11):2838-2847.
[12]Huang Xuzhen,Li Liyi,Bo Zhou,et al.Temperature calculation for tubular linear motor by the combination of thermal circuit and temperature field method considering the linear motion of air gap[J].IEEE Transactions on Industrial Electronics,2014,61(8):3923-3931.
[13]王春江.电线电缆手册(第一册)[M].北京:机械工业出版社,2001.
[14]李秀中.电线电缆常用数据速查手册[M].北京:中国电力出版社,2010.
[15]丁希亮,韩学山,张辉,等.电热协调潮流及输电线路温度的变化过程分析[J].中国电机工程学报,2008,28(19):138-144.
Ding Xiliang,Han Xueshan,Zhang Hui,et al.Analysis on electrothermal coordination power flow and transmission line temperature variation process[J].Proceedings of the Chinese Society for Electrical Engineering,2008,28(19):138-144.
[16]任丽佳,盛戈皞,曾奕,等.动态提高输电线路输送容量技术的导线温度模型[J].电力系统自动化,2009,33(5):40-44.
Ren Lijia,Sheng Gehao,Zeng Yi,et al.A conductor temperature model based on dynamic line rating technology[J].Automation of Electric Power Systems,2009,33(5):40-44.
[17]马国栋.电线电缆载流量[M].北京:中国电力出版社,2003.
[18]孟翔飞,王昌明,何博侠,等.基于灰色线性回归组合模型的火炮身管寿命预测[J].南京理工大学学报,2012,36(4):635-638.
Meng Xiangfei,Wang Changming,He Boxia,et al.Prediction of gun barrel life based on grey-linear regression combined model[J].Journal of Nanjing University of Science and Technology,2012,36(4):635-638.
[19]单永志,许河川,单文昭,等.子弹药落点散布多元线性回归预测方法[J].南京理工大学学报,2013,37(5):720-724.
Shan Yongzhi,Xu Hechuan,Shan Wenzhao,et al.Prediction of submunition impact point placement based on multiple linear regression[J].Journal of Nanjing University of Science and Technology,2013,37(5):720-724.
[20]Emmanuel I K,Panagiotis T T,John S K,et al.A wildfire model for the estimation of the temperature rise of an overhead line conductor[J].IEEE Trans on Power Delivery.2010,25(2):1077-1082.
[21]高旅端,陈志,李苏祥.求解线性约束最优化问题的有效集算法[J].北京工业大学学报,2006,32(3):283-288.
Gao Lvduan,Chen Zhi,Li Suxiang.An active set algorithm for nonlinear programming with linear constraints[J].Journal of Beijing University of Technology,2006,32(3):283-288.
[22]蔡晓伟,谭俊杰,张木,等.粘性流模拟中基于点云重构的最小二乘无网格法[J].南京理工大学学报,2013,37(6):880-885.
Cai Xiaowei,Tan Junjie,Zhang Mu,et al.Meshless least square method based on COP reconstruction for viscous flow simulation[J].Journal of Nanjing University of Science and Technology,2013,37(6):880-885.

Memo

Memo:
-
Last Update: 2015-06-30