• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2015, Vol. 36 ›› Issue (5): 37-44.doi: 10.3969/j.issn.1000-7229.2015.05.007

• 输配电技术 • 上一篇    下一篇

换位形式对1 000  kV同塔双回线路感应电压和电流的影响

王晓彤,班连庚,项祖涛,韩亚楠   

  1. 中国电力科学研究院,北京市100192
  • 出版日期:2015-05-01
  • 作者简介:王晓彤(1972),女,博士,教授级高级工程师,主要研究方向是电力系统电磁暂态仿真; 班连庚(1960),男,硕士,教授级高级工程师,主要研究方向是电力系统电磁暂态仿真; 项祖涛(1976),男,博士,高级工程师,主要研究方向是电力系统电磁暂态仿真; 韩亚楠(1984),女,硕士,工程师,主要研究方向是电力系统电磁暂态仿真。
  • 基金资助:

    国家电网公司科技项目(SGTGYJSFW(2012)378)

Influence of Transposing Form on Induced Voltage and  Current in 1 000 kV Double-Circuit Transmission Lines

WANG Xiaotong, BAN Liangeng, XIANG Zutao, HAN Yanan   

  1. China Electric Power Research Institute, Beijing 100192, China
  • Online:2015-05-01

摘要:

对不同换位形式下1 000  kV同塔双回线路的感应电压等问题进行了计算和分析。从限制感应电压、潜供电流、线路参数不平衡度的角度看,4段换位优于3段换位但多用1个换位塔;5段B型换位优于6段A型换位且可省1个换位塔;4段换位与6段A型换位的效果大致相当。为此,建议同塔双回线路着重考虑3种换位形式:3段换位(l/3,l/3,l/3)、4段换位(l /6,l/3,l/3,l/6)和5段B型换位(l/6,l/6,l/3,l/6,l/6)。一般不推荐采用2次以上的全循环换位。

 

关键词: 1 000 , kV, 同塔双回线路, 换位形式, 感应电压, 不平衡度, 潜供电流

Abstract:

The problems such as induced voltage and so on in 1 000 kV double-circuit transmission lines on the same tower were calculated and analyzed under different transposing forms. From the viewpoint of restricting induced voltage, secondary arc current and unbalanced degree of line parameters, 4 segment transposition is better than 3 segment transposition, but 1 more transposition tower is needed; while 5 segment type B transposition is better than 6 segment type A transposition and 1 transposition tower is saved. The effects of 4 segment transposition and 6 segment type A transposition are similar. Therefore, three kinds of transposing forms should be emphatically considered for double-circuit transmission lines on the same tower: 3 segment transposition (l/3, l/3, l/3)), 4 segment transposition (l/6, l/3,  l/3, l/6) and 5 segment type B transposition (l/6, l/6, l/3, l/6, l/6). It is not recommended to use more than 2 complete cycle transpositions in general.

Key words: 1 000 kV, double-circuit transmission lines on the same tower, transposing form, induced voltage, unbalanced degree, secondary arc current

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