等效集中参数模型在空载长线路教学中的应用

摘要

The capacity rise effect of long-term non-load line is an important concept in teaching of electrical engineering courses about over-voltage.It is a common internal over-voltage,and must be considered in the engineering practice of long-distance EHV transmission line.In this sense,it is essential that students understand capacity rise effect in teaching of electrical engineering courses.This paper has discussed the different conventional compensations for capacitive rise effect,the relationships among distribution parameters model and lumped parameter model of long-term homogeneous line,and analyzed the complex compensation as an example with the lumped parameter model.The discussion is helpful for the teaching of electrical engineering.%在＂电气工程基础＂课程的过电压教学过程中,空载架空线路的长线电容效应是一个十分重要的概念。本文从均匀架空长线的分布参数等效模型及其端点的等效集中参数模型出发,对电容效应不同的补偿方式进行等效参数分析和讨论,同时对复杂的补偿方法进行了等效分析.本文的讨论对电气工程课程的教学和工程实践具有一定的参考价值。