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SIMULINK电流互感器系统设计与仿真

时间:2017-10-09 15:42来源:毕业论文
论文先简单的介绍了本课题的目的和意义,电流互感器国内外研究现状与水平及其发展趋势。然后详细介绍电流互感器,包括电流互感器结构和基本原理、作用、常用额定参数及型号、
摘要:近年来,我国的电力系统发展迅速,而在电力系统中不可缺少的是继电保护和测量电路,电流互感器就是在电力系统中扮演着重要的角色,因为电流互感器的精确度和可靠性对电力系统的安全可靠地运行起着十分重要的作用。为了保证电力系统安全经济运行,我们需要对电力设备的运行情况随时进行监视和测量。但是一次侧电压和电流都过大,直接测量十分危险困难,如果一般的测量设备和保护装置直接接入一次侧设备的话容易损坏,因此我们需要将一次测的高电压和大电流按一定的比例转换成低电压小电流,来供给测量设备和保护装置使用。
毕业论文先简单的介绍了本课题的目的和意义,电流互感器国内外研究现状与水平及其发展趋势。然后详细介绍电流互感器,包括电流互感器结构和基本原理、作用、常用额定参数及型号、常用接线方式以及使用的一些注意事项。然后用MATLAB软件和SIMULINK,搭建电力系统仿真模型,获得三种不同情况下的一次侧和二次侧波形,并进行观察和分析,验证结果是否与理论相一致。
关键词: 电流互感器;MATLAB;SIMULINK;仿真波形14027
Current transformer system design and simulation
Abstract:In recent years, our country's electric power system is developing rapidly, and is indispensable in the electric power system relay protection and measurement circuit, the current transformer is play an important role in power system, because of the accuracy and reliability of the current transformer of electric power system run safely and reliably plays a very important role.In order to guarantee the safe and economic operation of power system, we need for the operation of power equipment in the monitoring and measurement at any time.All but one side voltage and current is too large, difficult direct measurement is very dangerous, if the general measuring equipment and direct access to the primary side equipment protection device easily damaged, so we need to put a test of high voltage and high current according to certain proportion into low current, low voltage to supply the measurement equipment and protective device is used. 源自六[维^论'文]网.加7位QQ3249'114 www.lwfree.cn
This paper first simply introduces the purpose and significance of the topic, current transformer at home and abroad research present situation and the level and developing trend.Then current transformer are introduced, including current transformer structure and basic principle, function and connection mode used commonly used rated parameters and models, and the use of some matters needing attention.And then using MATLAB and SIMULINK software, build simulation model of power system for three different cases of primary side and secondary side waveform, and observation and analysis, the verification results are consistent with the theory.
KeyWords: Current transformer;MATLAB;SIMULINK;The simulation waveform
目录
1 引言.1
1.1 本课题的目的和意义1
1.2 电流互感器国内外研究现状与水平1
1.3 电流互感器的发展趋势2
1.3.1 电流互感器的背景 .2
1.3.2 电流互感器的趋势2
1.4本课题的指导思想3
2 电流互感器简介.4
2.1 电流互感器概念4
2.2 电流互感器结构和基本原理4
2.3 电流互感器作用6
2.4 电流互感器的常用额定参数及型号6
2.4.1 额定电流6
2.4.2 容量7
2.4.3 准确级7
2.4.4 额定负荷8
2.4.5 型号8
2.5 电流互感器的常用接线方式8
2.5.1 单相式接线8
2.5.2 两相星形接线8
2.5.3 三相星形接线8
2.5.4 两相三继电器接线8
2.6使用注意事项8
3 MATLAB简介9
3.1 MATLAB介绍9
3.2 SIMULINK介绍11
4 电流互感器仿真实例及模型12
4.1 一般接线情况下的建模与仿真12
4.1.1 电力系统仿真模型12 SIMULINK电流互感器系统设计与仿真:http://www.lwfree.cn/zidonghua/20171009/14439.html
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