摘要
针对输电线路整定和运行参数存在差异的问题,提出一种基于参数误差补偿的双端电气量故障测距算法。该算法先利用故障前的两端电压和电流数据实时修正线路参数,再利用故障后的两端电气量来进行故障定位。对于不换位系统该算法又可利用相模变换,在模域求解故障距离来减少实际线路的不换位和参数不平衡的影响。基于MATLAB的仿真结果表明,该算法有较强的自适应性和鲁棒性,无需数据同步,不受故障条件影响,测距误差在0.5%以内。
A new two-terminal electrical variables fault location algorithm using error compensation is proposed, because of the setting and operation parameters for transmission line is different. The algorithm applies the voltage and current data of two terminals in normal condition to correct the line parameter in real time and uses the voltage and current data of two terminals in faulty condition to locate the fault. For non-transposition system, the algorithm can utilize Sagami transform domain solver fault in module parameters to reduce the imbalance from the actual line and the impact of non - transposition. Based on MATLAB simulation results show that the method has strong adaptability and robustness, does not need data synchroniza- tion,largely unaffected by the fault conditions ,ranging error is less than 0. 5%.
出处
《世界科技研究与发展》
CSCD
2016年第1期100-104,共5页
World Sci-Tech R&D
基金
河南省科技攻关项目(112102210004)资助
关键词
分布参数模型
输电线路
双端电气量
故障定位
误差补偿
distributed parameter model
transmission line
two terminal electrical quantities
fault location
error compensation
