CAJ | 학술논문

输电线路是电力系统的重要组成部分，其工频参数包括正序参数、零序参数和互感阻抗等，是进行电力系统潮流计算、继电保护整定计算等工作的重要数据。该文介绍了由变频法构成的输电线路工频参数测量系统，系统由上位机和下位机构成。下位机完成线路电压、电流的采集，上位机利用LabVIEW程序，实现输电线路参数的计算、分析、显示和存储。
수전선로시전력계통적중요조성부분，기공빈삼수포괄정서삼수、령서삼수화호감조항등，시진행전력계통조류계산、계전보호정정계산등공작적중요수거。해문개소료유변빈법구성적수전선로공빈삼수측량계통，계통유상위궤화하위궤구성。하위궤완성선로전압、전류적채집，상위궤이용LabVIEW정서，실현수전선로삼수적계산、분석、현시화존저。
Transmission line is an important part of power system, line -frequency parameters of transmission consist of positive -sequence parameters, zero -sequence parameters, mutual inductance impedance and so on, all the parameters are necessary for power flow calculation, setting calculation of relay protection,etc. This paper introduces the system of power frequency parameters variable-frequency electrical measurement of transmission line, it is presented to two parts:the upper and the lower comput-er. The lower computer complete the line voltage and current acquisition, the PC software can calculate, analysis, display and save transmission parameters by LabVIEW program.