A Study of Conductors Selection Types in 1000kV Compact Power Transmission Line

doi:10.11985/2017.09.006

Abstract

Abstract:

The amount of natural power of transmission line and the amount of natural power of unit cross-sectional area are two important indicators of measuring the efficiency of transmission line. We are not only considering the natural power of transmission line and the amount of natural power of unit cross-sectional area, but also the conductor surface electric-field strength, radio interference and audible noises, etc in the construction of ultra-high voltage. Compact power transmission technology is an effective method of increasing the natural power of line, natural power of unit cross-sectional area and improving the line electromagnetic environment. In this paper, by using the compact transmission technology, consideration the economy and the electromagnetic environment of ultra-high voltage construction , establishing a multi-objective nonlinear optimization model with inequality constraints, we get the ultra-high voltage conductors selection type of conductor is symmetrically arranged. By comparing the conductors selection types with the current ultra-high voltage transmission lines, we get a ultra-high voltage conductors selection types with better economic and environmental friendly. Also, particle swarm optimization has been used to above selection type this paper and to reduce the line electromagnetic environment. Finally, simulations have been done with the finite element analysis method.

Key words: Ultra-high voltage, compact power transmission technology, electromagnetic environment, conductor selection types, the finite element analysis method

CLC Number:

TM89

Longlong Wang,Jinshan Song,Difeng Wang. A Study of Conductors Selection Types in 1000kV Compact Power Transmission Line[J]. Journal of Electrical Engineering, 2017, 12(9): 34-40.

Figures/Tables 9

Tab.1

Tab.2

Tab.3

Fig.1

Fig.2

Fig.3

Tab.4

Fig.4

Fig.5

References 17

[1]	易辉, 纪建民 . 交流架空线路新型输电技术[M]. 北京: 中国电力出版社, 2006.
[2]	Huang Weigang . Study on conductor configuration of 500kV Chang-Fang compact line[J]. IEEE Transactions on Power Delivery, 2003,18(3):1002-1008.
[3]	万保权, 邬雄, 张业茂 , 等. 750kV单回紧凑型输电线路的电磁环境[J]. 高电压技术, 2009,35(3):597-600.
	Wan Baoquan, Wu Xiong, Zhang Yemao , et al. Electro-magnetic environment of 750kV single-circuit compact transmission lines[J]. High Voltage Engineering, 2009,35(3):597-600.
[4]	屠强, 李新建, 邬雄 , 等. 750kV 同塔双回紧凑型输电线路关键技术研究:电磁环境课题研究[R].西安:西北电网公司. 武汉:国网武汉高压研究院, 2008.
[5]	亚历山大罗夫 T H. 超高压送电线路的设计[M]. 倪宗德, 译.北京: 水利电力出版社, 1987.
[6]	阿历克山德罗夫. 动力系统传输电能新方法[M]. 北京: 水利电力出版社, 1992: 44-45.
[7]	高玉明 . 紧凑型输电线路与分裂导线的优化设计[J]. 电力技术, 1992,15(6):51-56.
	Gao Yuming . The optimization of compact transmission lines and split conductor[J]. Electric Power Technology, 1992,15(6):51-56.
[8]	郭琳霞, 龚有军 . 750kV紧凑型输电线路导线表面电场强度优化[J]. 电力建设, 2011,32(6):1-4.
	Guo Linxia, Gong Youjun . Optimization of electric field intensity on conductor surface in 750kV compact power transmission line[J]. Electric Power Construction, 2011,32(6):1-4.
[9]	邬雄, 万保权, 张广洲 , 等. 1000 kV特高压交流同塔双回线路电磁环境及导线优化研究[R]. 武汉:国网武汉高压研究院, 2008.
[10]	张殿生 . 电力工程高压送电线路设计手册[M]. 第2版.北京: 中国电力出版社, 2003.
[11]	李勇伟, 王劲, 薛春林 . 交流特高压试验示范工程晋东南—南阳—荆门1000 kV 输电线路工程初步设计/导地线选择[R]. 北京:中国电力顾问集团公司, 2006.
[12]	张业茂, 张广洲, 万保权 , 等. 1000 kV交流单回紧凑型输电线路电磁环境研究[J]. 高电压技术, 2011,37(8):1888-1894.
	Zhang Yemao, Zhang Guangzhou, Wan Baoquan . Electromagnetic environment of 1000kV AC single-circuit compact transmission lines[J]. High Voltage Engineering, 2011,37(8):1888-1894.
[13]	胡毅, 万保权, 何慧雯 . 1000kV交流紧凑型输电关键技术研究[J]. 高电压技术, 2011,37(8):1825-1831.
	Hu Yi, Wan Baoquan, He Huiwen . Key technologies of 1000kV AC compact transmission[J]. High Voltage Engineering, 2011,37(8):1825-1831.
[14]	Huang Daochun, Ruan Jiangjun. Discussion on electromagnetic environment of 1000kV AC overhead transmission lines in china[C]. IEEE Power Engineering Conference, 2007: 752-757.
[15]	黄俊璞, 林韩, 宋福根 , 等. 不同杆塔转角度数对输电线路电场的影响[J]. 电气应用, 2016,35(14):69-72.
[16]	中国电力企业联合会. GB 50665—2011 1000kV架空输电线路设计规范[S]. 北京: 中国计划出版社, 2012.
[17]	邬雄, 万保权, 路遥 . 1000kV交流输电线路电磁环境的研究[J]. 高电压技术, 2006,32(12):1-6.
	Wu Xiong, Wan Baoquan, Lu Yao . Electromagnetic environment research of 1000kV AC transmission line[J]. High Voltage Engineering, 2006,32(12):1-6.

分裂数	相排列方式	子导线半径/mm	子导线截面积/mm²	分裂间距/mm	相间距离/m
8	等腰倒三角	14.93	700	450	16
8	等边倒三角	14.93	700	450	16
10	等腰倒三角	13.82	600	450	16
10	等边倒三角	13.82	600	450	15
12	等腰倒三角	13.23	550	375	13
12	等边倒三角	13.23	550	400	13
14	等腰倒三角	12.60	376	378	12.5
14	等边倒三角	12.60	376	378	12.5

分裂数	相排列方式	子导线半径/mm	分裂间距/mm	相间距/m	自然功率/MW	单位截面自然功率/(MW/mm²)
8	等腰倒三角	无解
8	等边倒三角	无解
10	等腰倒三角	16.43	401.48	14.7	5 613	0.242
10	等边倒三角	16.08	408.89	14.9	5 628	0.249
12	等腰倒三角	13.37	372.32	13.0	6 107	0.311
12	等边倒三角	13.33	376.88	13.1	6 116	0.314
14	等腰倒三角	10.94	333.84	12.6	6 342	0.402
14	等边倒三角	10.71	337.80	12.8	6 353	0.407

参数	导线结构	分裂间距 /mm	下相最低高度/m	场强最大值 /(kV·m^-1)	磁感应强度最大值/μT	可听噪声 /dB(A)	无线电干扰 dB(μV·m^-1)	自然功率 /MW	单位走廊输送功率/(MW/m)	场强>4kV/m 的区域宽
单回ZBS1	8×500	400	23	9.67	36.13	51.67	50.64	4 369	41.7	104.7
单回ZMP1	8×500	400	22	9.60	32.41	51.83	52.36	4 478	56.8	78.9
双回SK301	8×630	400	22	9.50	27.85	54.26	52.52	2×4 643	116.1	80.0
紧凑相间距离 14.9m	10×500	400	20	9.83	21.16	54.99	52.41	5 628	159.0	35.4
紧凑相间距离 13.1m	12×400	375	20	9.84	19.81	54.93	50.70	6 116	171.3	35.7

电气参数	优化排列前	优化排列后
导线表面最大场强E_max/(kV·cm^-1)	24.67	23.79
场强不均匀度(%)	19.31	6.54
地面电场/(kV·cm^-1)	8.42	8.43
无线电干扰/[dB(μV·m^-1)]	52.41	51.23
可听噪声（湿导线）/(dB·A^-1)	54.99	53.34
自然功率/MW	5 628	5 630