Operation Characteristic Analysis of Same-tower Transmission Lines and its Influence on Relay Protection

摘要：

The wide application of same-tower transmission lines has brought new challenges to fault analysis and relay protection operation in power system.In this paper,the diversity of construction form of same-tower transmission lines is introduced.And its operation characteristics,such as strong magnetic coupling and easy occurrence of inter-line fault,are analyzed.Then the influence of same-tower transmission lines on relay protection is studied.The influence matrix of distance protection,zero sequence protection and fault phase selection components is summarized.Finally,from the point of view of protection setting and configuration,power system operation and management,and protection device,several solutions to minimize the influence of same-tower transmission lines are proposed.

关键词： Same-Tower Transmission Lines Relay Protection:Strong Magnetic Coupling Inter-line Fault

作者: Zeng Geng-hui Chen Qiao-ping Cai Ze-xiang Liu Wei-xiong

作者单位: School of Electric Power South China University of Technology Guangzhou,China Relay Department Guangdong Power Dispatch Center Guangzhou,China Tianlian Corp.Guangdong Electric Power Design Institute Guangzhou,China

会议类型: 国际会议

会议名称: 2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies(第四届电力设施管制、重建及能源技术国际会议 DRPT 2011)

会议地点: 威海

会议语种:英文

页码: 944-950

在线出版日期: 2011-07-06（万方平台首次上网日期，不代表论文的发表时间）