CAJ | 학술논문

介绍了一种基于D型行波原理的T接线路故障测距方法，无需故障分支判断，计算简单。对T接线路故障时的行波过程进行了分析，直接利用故障时刻产生的初始波头到达T接线路三端的时刻，基于D型行波原理，进行两次双端故障测距，然后选择两次双端测距结果中的较大值作为最终故障测距结果。用ATP仿真软件和MATLAB软件对该方法进行了仿真分析。仿真结果表明，在T接线路发生故障时，此方法能够利用故障初期很短时间内的行波信号实现快速、准确的故障测距。
개소료일충기우D형행파원리적T접선로고장측거방법，무수고장분지판단，계산간단。대T접선로고장시적행파과정진행료분석，직접이용고장시각산생적초시파두도체T접선로삼단적시각，기우D형행파원리，진행량차쌍단고장측거，연후선택량차쌍단측거결과중적교대치작위최종고장측거결과。용ATP방진연건화MATLAB연건대해방법진행료방진분석。방진결과표명，재T접선로발생고장시，차방법능구이용고장초기흔단시간내적행파신호실현쾌속、준학적고장측거。
On the basis of D-type traveling wave theory, a fault location method for T-connection lines is presented which doesn’t need judge fault branch and the calculation is simple. Wave progress in T-connection lines is studied, and based on D-type traveling wave theory, two double-terminal results are calculated by using the time that the first traveling wave head generated during the fault reaches the ends of the three-terminal power lines. Various situations are simulated and analyzed by ATP simulation software and MATLAB software. The simulation results show that this method takes advantage of the initial traveling waves within a short time to achieve fault location fast and accurately.