文档介绍：目录
摘要 I
Abstract II
1磨床发展概述 1
1
1
2
2
2异步电动机能耗制动原理 3
3
(又称发电制动、再生制动) 3
3
7
3 ATLAB实现电机仿真 9
Matlab/Simulink动态仿真软件 9
Simulink对电机系统仿真概述 10
异步电动机能耗制动仿真分析 10
13
13
参考文献 14
致谢 15
摘要
磨床中三相异步电动机的能耗制动模块,实际上通过利用异步电动机电磁原理来实现的。三相异步电动机的能耗制动是一种平稳,准确,能量消耗小的制动控制方式。本文分析了异步电动机的电气制动原理及其能耗制动的基本控制方式,介绍了Matlab的使用方法。重点讨论了Simulink工具在电机仿真中的应用,并给出三项异步电动机能耗制动的仿真演示。技术上,应用的仿真软件是Matlab/Simulink软件。
本课题共分为三个大部分,即磨床发展部分;异步电动机能耗制动部分;MATLA仿真部分。各部分相互独立,同时又围绕主题构成统一的整体。改变输入电流形式,我们可以得到非常真实和多变的条件。为使该系统工作稳定,利用MATLAB仿真软件对制动过程中电流、转速、转矩等进行对比研究。
本文重点介绍了磨床电机能耗制动系统的总体构成,控制方法,仿真步骤和数据分析。此外还先关简要介绍了一些其他电气制动的相关基础理论。最后提出了能耗制动模块有待于进一步完善发展的方向。
关键词:磨床、电动机、能耗制动、电气制动、控制仿真、Matlab、Simulink
ABSTRACT
The dynamic braking module of three-phase asynchronous motors used for grinders, in fact, makes use of the inductive principle of ic induction motors to realize. The dynamic braking module of three-phase asynchronous mortors is a smooth, accurate, energy-efficient mode. This thesis introduces the electric braking principle of the three-phase asynchronous motors,the basic controlling mode of dynamic braking, the use-method of the Matlab. Above all,this paper introduces the use of simulink tool and gives examples of the dynamic braking module of three-phase asynchronous , the application of emulatio is the Matlab/Simulink software.
This topic is divided into three big parts:the development of grinde, the dynamic braking of asynchronous motor module,the emulation of Matlab. In order to constitute a unified integral,each part is not only independent, but also can get real and changeful conditions by change the forms of the input current. paring the current, speed, torque in the braking process,wo can make the system work stably on Matlab.
This paper,importantly,introduces the dynamic braking’s general structure,controlling method,