ระบบประมวลผลตำแหน่งและประเภทของความผิดพร่องสำหรับระบบจำหน่าย ของการไฟฟ้าส่วนภูมิภาค โดยใช้หลักการคลื่นจร

Abstract

This research presented the calculation and design fault location of Provincial Electricity Authority’s (PEA) distribution system by using traveling wave single-ended for calculate the estimate’s distance of fault location. The calculation and summarization were divided into 4 parts: 1) the fault location has been calculated by simulation model using MATLAB Simulink, to simulates fault in 115 kV transmission lines of Provincial Electricity Authority that presented the distance’s position calculation comparative between impedance method in transmission line and traveling wave single-ended 2) Design the fault current record by testing with circuit simulator in laboratory 3) Algorithm testing, calculate the estimate of distance and calculate from the data in 115 kV distribution system of the Provincial Electricity Authority (PEA) and 4) Prediction the cause of the fault by using the distance recorded from the distribution system, while fault and to compared with the outage and maintenance database of the Provincial Electricity Authority (PEA), the result was accurate and acceptable. This research will increase the efficiency of outage correction and be the option to calculate the estimate’s distance of fault location.

Keyword: traveling wave single-ended, impedance method in transmission line, fault distance, 115 kV transmission lines