Accurate Fault Location Modeling for Parallel Transmission Lines Considering Mutual Effect  

作　　者：Hamdy A.Ziedan Hegazy Rezk Mujahed Al-Dhaifallah 

机构地区：[1]Department of Electrical Engineering,Faculty of Engineering,Assiut University,Assiut,71518,Egypt [2]College of Engineering at Wadi Addawaser,Prince Sattam Bin Abdulaziz University,Al-Kharj,11911,KSA [3]Department of Electrical Engineering,Faculty of Engineering,Minia University,Minia,61517,Egypt [4]Department of Systems Engineering,King Fahd University of Petroleum&Minerals,Dhahran,31261,KSA

出　　处：《Computers, Materials & Continua》2021年第4期491-518,共28页计算机、材料和连续体（英文）

摘　　要：:A new accurate algorithms based on mathematical modeling of two parallel transmissions lines system(TPTLS)as influenced by the mutual effect to determine the fault location is discussed in this work.The distance relay measures the impedance to the fault location which is the positive-sequence.The principle of summation the positive-,negative-,and zero-sequence voltages which equal zero is used to determine the fault location on the TPTLS.Also,the impedance of the transmission line to the fault location is determined.These algorithms are applied to single-line-to-ground(SLG)and double-line-to-ground(DLG)faults.To detect the fault location along the transmission line,its impedance as seen by the distance relay is determined to indicate if the fault is within the relay’s reach area.TPTLS under study are fed from one-and both-ends.A schematic diagrams are obtained for the impedance relays to determine the fault location with high accuracy.

关 键 词：New accurate algorithms mathematical modeling fault location scheme diagrams parallel transmission lines mutual effect SLG and DLG faults 

分 类 号：TN9[电子电信—信息与通信工程]