中国电力 ›› 2015, Vol. 48 ›› Issue (8): 73-79.DOI: 10.11930.2015.8.73

• 电网 • 上一篇    下一篇

新型500 kV/220 kV混压四回路直线塔的设计与研究

谢芳1,冯炳2,郭勇3,叶尹3   

  1. 1. 绍兴文理学院 元培学院,浙江 绍兴 312000;
    2. 国网绍兴供电公司,浙江 绍兴 312000;
    3. 浙江省电力设计院,浙江 杭州 310016
  • 收稿日期:2015-05-13 出版日期:2015-08-25 发布日期:2015-11-25
  • 作者简介:谢芳(1981—),女,浙江绍兴人,硕士,讲师,从事结构工程的研究和教学工作。E-mail: xiefangyp@163.com
  • 基金资助:
    浙江省教育厅科研资助项目(Y201533931)

Design and Research of new Tangent Tower for Transmission Line with 500 kV/220 kV Four Circuits in the Same Tower

XIE Fang1, FENG Bing2, GUO Yong3, YE Yin3   

  1. 1. Yuanpei College Shaoxing Universty, Shaoxing 312000, China;
    2. Shaoxing Electric Power Bureau, Shaoxing 312000, China;
    3. Zhejiang Electric Power Design Institute, Hangzhou 310016, China
  • Received:2015-05-13 Online:2015-08-25 Published:2015-11-25
  • Supported by:
    the Scientific Research Project of Education Department of Zhejiang (No. Y201533931).

摘要: 针对传统混压四回路直线塔型无法兼顾线路走廊与塔材指标的问题,提出了一种新型的混压四回路穿身塔。该塔型220 kV部分的其中2相导线从塔身中间穿过,使其220 kV部分导线对全塔的走廊宽度不再起控制,而横担数量仍然为5层。通过电气校验、电磁环境分析、模态分析、结构线性分析及非线性分析对混压四回路穿身塔塔型进行了可行性分析,结果表明,该塔型电气布置符合规范要求,结构受力合理、动力性能良好。与传统塔型的技术经济比较结果表明,穿身塔各项指标均较优,在廊道紧张的地区使用,优势相当明显。

关键词: 混压四回路输电线路, 穿身塔, 电气性能, 有限元分析

Abstract: Traditional design of tangent towers for transmission line with 500/220 kV four circuits in the same tower has conflict between line corridor and tower material indices. Based on the technical-economy comparison, a new type of tangent tower, namely Cross-body Tower, is proposed. In proposed design, two phase conductors for 220 kV cross through tower body, which eliminate the effect of 220 kV line on the width of the corridor. The total number of cross-arms is still 5. The electrical performance, electromagnetic enviornments, linear and non-linear of structure and modal of proposed design are analzed in detail. The results show that new design complies with specification requirement and has rational structure and satisfactory dynamic performance. The technical and economic comparison results also indicate that proposed design has many advantages compare to classic design, especially in economically developed region with restricted transmission line corridor.

Key words: ransmission lines with four circuits in the same tower, cross-body tangent tower, electrical properties, finite element analysis

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