电气工程学报 ›› 2017, Vol. 12 ›› Issue (9): 34-40.doi: 10.11985/2017.09.006

• • 上一篇    下一篇

1000kV紧凑型输电线路选型研究

汪龙龙1,宋金山1,汪迪锋2   

  1. 1. 江苏省电力公司检修分公司 南京 210000
    2. 江门供电局 江门 529000
  • 收稿日期:2016-08-31 出版日期:2017-09-25 发布日期:2020-03-27
  • 作者简介:汪龙龙 男 1988年生,硕士研究生,主要研究方向为电力系统运行与控制。|宋金山 男 1980年生,本科,主要研究方向为继电保护。

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

Longlong Wang1,Jinshan Song1,Difeng Wang2   

  1. 1. Jiangsu Electric Power Maintenance Branch Company Nanjing 210000 China
    2. Jiangmen Power Supply Bureau Jiangmen 529000 China
  • Received:2016-08-31 Online:2017-09-25 Published:2020-03-27

摘要:

线路输送自然功率的多少和单位截面积自然功率的大小是影响输电线路经济性的两个重要参考指标。在特高压输电线路的选择中除了要考虑这两个指标之外,还必须考虑到导线表面电场强度、无线电干扰及可听噪声等电磁环境约束。紧凑型输电技术能够有效地增大线路自然功率和单位截面积自然功率,并能够有效改善其周围的电磁环境。本文运用紧凑型输电技术,考虑特高压线路选择的经济性和电磁环境等工程实际约束,建立有多个非线性约束的多目标数学模型,得到常规子导线对称排列的特高压输电线路选型。将所得线路选型与常规的特高压线路选型相比较,得到一种经济性和电磁环境均较好的线路选型。此外,本文运用粒子群算法对上述选型进行子导线非对称排列优化,进一步减小了线路周围的无线电干扰和可听噪声等电磁参数值,获得了各相子导线非对称排列的线路选型,最后利用有限元法对求得的选型进行了仿真验证。

关键词: 特高压, 紧凑型输电技术, 电磁环境, 线路选型, 有限元分析法

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

中图分类号: