基于MATLAB的调压调速控制系统的仿真研究

本文ID：2861

字数:17971,页数:35

论文编号:JD563 论文字数:17971,页数:35

摘要
交流调压调速是通过改变定子外加电压来改变电磁转矩，从而在一定的输出转矩下达到改变电动机转速的目的。在引入转速、定子电压和转矩负反馈后，交流调压调速能够达到快速调压的目的，并且提高了调速的精度和范围。带反馈的交流调压调速系统适用于风机、水泵等负载。通过转差功率消耗计算，调压调速控制系统能量消耗很小，若能把风机或泵的档板等节流阀调节风量、流量的控制改为调速控制，会是节能的一个有效途径。在对异步电动机调压调速控制的基本原理进行充分分析的基础上，建立了异步电动机调压调速控制系统的MATLAB / SIMULINK仿真模型。仿真实验结果表明，结合SIMULINK中的电气控制模块库进行仿真，具有建模简单、结构直观和操作灵活等优点，有助于设计和了解异步电动机调压调速系统。

关键词调压调速控制速度反馈仿真 MATLAB/SIMULINK

Title Simulation of AC Motor Speed Control By Termina Voltage Based on Matlab

Abstract
Electromagnetic torque is determined by the stator’s input torque in AC motor speed control system by terminal voltage. The speed of rotor is controlled under certain output torque. It can achieve the purpose of quick speed control with the introduction of rotator speed, stator voltage and torque feedback, the speed scope is widened and the accuracy is improved as well. AC motor speed control by terminal voltage with feedback is quite useful for pump machines. It is good scheme to save the energy when applied on pump machines. The power loss is very low. On the base of analyzing the principle of AC motor speed control by terminal voltage in details, the simulation model of MATLAB/Simulink was set up. The simulation results prove that using the SimPowerSystem of MATLAB to simulate the speed control procedure is simple and easy to operate. It can help us understand and design the AC motor speed control by terminal voltage system.

Key Words AC motor speed control by terminal voltage speed feedback Emulation MATLAB/Simulink

1 绪论………………………………………………………………………………………1
1.1 现代交流调速技术的应用和发展……………………………………………………1
1.2 问题的提出及解决问题的途径……………………………………………………5
1.3 本文的研究目的及意义…………………………………………………………… 6
1.4 论文的主要工作与内容安排……………………………………………………… 6
2 调压调速控制的基本原理………………………………………………………… 7
2.1 交流异步电动机调压调速原理与方法…………………………………………7
2.2 感应电动机的调压调速方法的应用范围和节能效益分析…………………………9
2.3 本章小节…………………………………………………………………………… 12
3 仿真工具与仿真算法的选择……………………………………………………… 13
3.1 仿真的意义…………………………………………………………………………13
3.2 MATLAB/Simuliink简介………………………………………………………13
3.3 仿真算法的选择 ……………………………………………………………………7
3.4 本文对算法的选择 ………………………………………………………………20
3.5 本章小节 ……………………………………………………………………………20
4 调压调速控制仿真系统的设计………………………………………………… 20
4.1 交流调压调速系统的建模 ………………………………………………………20
4.2 系统的仿真参数设置……………………………………………………………27
5 SIMULINK仿真结果分析……………………………………………………………29
5.1 系统的仿真、仿真结果的输出及结果分析…………………………………29
结论 …………………………………………………………………………………… 31
致谢 …………………………………………………………………………………… 32
参考文献…………………………………………………………………………33
附录A 交流调压调速系统的仿真模型……………………………………………35