基于MATLAB的调压调速控制系统仿真分析

摘要
本文聚焦于基于MATLAB的异步电动机调压调速控制系统仿真分析。在绪论部分，阐述了研究目的、意义、背景、国内外研究现状以及研究方法，强调了异步电动机调速系统研究的重要性与现实意义。
详细介绍了异步电动机调速系统，包括其分类、调速原理，如变极电动机、变频调速、转子串电阻调速和调压调速等，并分析了各种调速方法的特点。重点围绕异步电机调压调速模型设计展开，深入剖析了调压调速原理，构建了速度负反馈的交流调压调速系统，明确了系统组成部分，涵盖三相交流调压器、同步脉冲触发器和反馈环节等。
利用MATLAB软件对三相交流调压调速系统进行仿真。首先介绍了MATLAB及其Simulink库，随后逐步完成系统各部分的建模与参数设置，包括三相电源、同步流脉冲触发器、三相交流调压电路、电机模块以及转速反馈和给定环节等，并给出带转速负反馈的系统连接图。
通过对仿真结果的分析得出，调速电机选择需依据负载性质。一般低要求生产选低电阻鼠笼型转子电机；高转速范围要求则选高电阻鼠笼型转子电机或绕线式转子串电阻，并采用转速负反馈调速系统；风机类负载选普通鼠笼型转子电机且开环调速即可。此研究借助MATLAB快速仿真，为异步电动机调压调速系统的设计与优化提供了理论依据和实践参考。

关键词：异步电动机；调压调速；MATLAB仿真；系统建模；转速负反馈

Abstract
This paper focuses on the simulation analysis of the voltage regulation and speed regulation control system of asynchronous motors based on MATLAB. In the introduction section, the research purpose, significance, background, domestic and foreign research status, and research methods are elaborated, emphasizing the importance and practical significance of researching the speed regulation system of asynchronous motors.
The speed regulation system of asynchronous motors is introduced in detail, including its classification and speed regulation principles such as pole-changing motors, variable frequency speed regulation, rotor resistance series speed regulation, and voltage regulation speed regulation. The characteristics of various speed regulation methods are also analyzed. The focus is on the model design of the asynchronous motor voltage regulation speed regulation system. The principle of voltage regulation speed regulation is deeply analyzed, a speed negative feedback AC voltage regulation speed regulation system is constructed, and the components of the system are clarified, covering three-phase AC voltage regulators, synchronous pulse triggers, and feedback links.
MATLAB software is used to simulate the three-phase AC voltage regulation speed regulation system. First, MATLAB and its Simulink library are introduced. Then, the modeling and parameter settings of each part of the system are carried out step by step, including the three-phase power supply, synchronous current pulse trigger, three-phase AC voltage regulation circuit, motor module, and speed feedback and given links. A connection diagram of the system with speed negative feedback is also provided.
Through the analysis of the simulation results, it is concluded that the selection of speed regulation motors should be based on the nature of the load. For general production with low speed regulation requirements, ordinary low-resistance squirrel-cage rotor motors can meet the requirements. For high speed range requirements, high-resistance squirrel-cage rotor motors or wound-rotor motors with series resistors should be selected, and a speed negative feedback speed regulation system should be adopted. For fan-type loads, ordinary squirrel-cage rotor motors with open-loop speed regulation are sufficient. This research uses MATLAB for rapid simulation, providing a theoretical basis and practical reference for the design and optimization of the asynchronous motor voltage regulation speed regulation system.
Keywords：Asynchronous motor; Voltage regulation speed regulation; MATLAB simulation; System modeling; Speed negative feedback
目 录
摘要 I
Abstract II
1 绪论 1
1.1 研究目的及意义 1
1.1.1 研究目的 1
1.1.2 研究意义 1
1.2 研究的背景 1
1.3 国内外研究现状 1
1.4 研究方法 2
2 异步电动机的调速系统 3
2.1 异步电动机调速系统的分类 3
2.2 异步电机调速原理简介 3
2.2.1 变极电动机 3
2.2.2 变频调速 3
2.2.3 转子串电阻调速 3
2.2.4 调压调速 3
2.3 各种异步电机调速的特点 4
2.3.1 变极调速方法 4
2.3.2 变频调速方法 4
2.3.3 转子串电阻调速方法 4
2.3.4 调压调速的方法 4
3 异步电机调压调速模型设计 5
3.1 异步电机调压调速的原理 5
3.2 速度负反馈的交流调压调速系统 6
3.3 调压调速系统的组成部分 6
3.3.1 三相交流调压器 7
3.3.3 反馈环节 8
4 三相交流调压调速系统的Matlab仿真 11
4.1 Matlab简介 11
4.2 Simulink库介绍 11
4.3 系统建模与仿真 13
4.3.1 三相电源的建模及参数设置 13
4.3.2 同步流脉冲触发器的建模与参数的设置 14
4.3.3 三相交流调压电路的建模与参数设置及仿真 14
4.3.5 转速反馈环节及给定环节的建模及参数设置 17
4.4 带转速负反馈的三相交流调压调速系统的连接图 18
4.5 仿真结果与分析 19
4.5.1触发脉冲波形 19
4.5.2 三相电流波形 19
4.5.3 A相转子电流 20
4.5.4 A相定子电流 20
4.5.5 转矩波形 21
4.5.5 转速波形 21
4.5.7 参考转速和输出转速偏差曲线 22
5 总结 23
参考文献 24
致谢 25