文档介绍：本科生毕业论文(设计)
中文题目1000MW火力发电机组的电气主接线及厂用电接线的设计及仿真
英文题目Design and Simulation of the Main and Auxiliary Power Wiring for 1000MW Thermal Power Units
学生姓名班级学号
学院仪器科学与电气工程学院
专业电气工程及其自动化
指导教师职称
中文摘要
摘要:随着我国经济的发展,用电需求的增大,1000MW容量的发电机组开始成为电力系统的主力机组,由于机组容量的增大和厂用电压等级的提高,带来了电动机起动困难、短路电流过大等问题。本文利用电力设计专用仿真软件构建了1000MW容量发电机组的电气主接线和厂用电接线系统模型,计算了整个系统所有母线处的潮流、短路电流,给出了短路电流与专业设计值对比结果,为开关电气设备的选择提供依据,并对系统中最大一台容量的电动机起动、电动机成组及串联自启动进行了检验计算,给出电机启动校验仿真数据与实际计算结果的对比,分析了系统设计方案的优劣,为今后大容量机组系统优化设计提供参考。
关键词:1000MW机组、电气主接线、厂用电接线、设计、仿真、潮流、短路、电动机起动
外文摘要
Title Design and Simulation of the Main and Auxiliary Power Wiring for 1000MW Thermal Power Units
Abstract
As China's economy developing and electricity demand growing, 1000MW capacity of generating units has e the main force, With the increased capacity and enhanced voltage grade of the plant, serious problem ing, such as motor starting, short-circuit current is too large and so on; In this paper, the power designing simulation software was adopt to build the model of the main and auxiliary power wiring for 1000MW thermal power units. Calculated power flow and short circuit of all buses in this system, pared the short circuit value with the value of professional design, it provides a basis for the choice of switching equipment. And the largest capacity motor starting, the group motor and the series motor starting were tested, then give parison of starting checking data and actual simulation values, analyses the designing project of system. it will be a reference for Optimal design of Large-capacity unit system.
Keywords: 1000MW unit the electric main power connection auxiliary power wiring designing simulating power flow short circuit motor starting
目录
1 引言 1
电气主接线的设计、仿真的目的和意义 1
厂用电接线的设计、仿真的目的和意义。 2
ETAP及其在电力系统中的应用 2
本文的主要工作 4
2 1000MW火电机组电气主接线设计 5
电气主接线设计的要求 5
电气主接线方案的选择 5
主接线方案的论证 6
主变压器的选择 7
3 1000MW火电机组厂用电接线的设计 9
厂用起动、备用电源的接线方案选择 9
厂用电电压等级的选择 9
厂用电接线方案的论证 11
4 电气系统设备模型及参数 12