【作者】 赵永娴；

【导师】 刘万顺；

【作者基本信息】 华北电力大学（北京） ， 电力系统及其自动化， 2003， 硕士

【摘要】 同杆并架双回线所需出线走廊窄，单位走廊输送能力强，节省投资，从而越来越多地在线路系统中采用。由于线路故障对电力系统的稳定性、可靠性有不可忽视的影响，所以故障测距也成为电网运行、管理部门和专家学者广泛关注的问题。同杆双回线结构复杂，测距较有难度。本文比较分析了各种测距算法，并在此基础上提出了一种同杆并架双回线的故障测距新算法。首先从理论上对算法进行了推导，算法采用分布参数线路模型，并考虑了对不准确线路参数识别的问题，利用了双端数据和六序分量法。经EMTP仿真，测距结果及分析表明了该算法的正确性和有效性，测距精度高，误差小于0.1％，对不准确的线路参数具有较好的自适应能力。该算法具有工程实用价值。更多还原

【Abstract】 The double transmission line on the same tower requires narrow corridors,the transmission ability is strong,and investment is saved.Thereby,it is used by line system more and more.Due to the effect of the line faults for the stability and reliability of power system is not neglected, the fault location had become a problem that got more attention from the department of power network management and experts.The structure of the double line on the same tower is complex, fault location is more diffi -cult.This paper compares and analyses all sorts of fault location algorithms,and puts forward a new fault location algorithm for double transmission line on the same tower.The algorithm is deducted from theories,the algorithm adopts the line’s model of distributing parameter, and considers the problem that can identify the inaccuracy para -meter, uses two-end datas and six-order component.By EMTP emulating, the results manifest the algorithm’s correctness and validity.The precision is quite high.Zhao Yongxian(electric power system and automation)Directed by prof. Liu Wanshun更多还原