矿用电机车直接转矩控制技术研究

本文主要是介绍矿用电机车直接转矩控制技术研究，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

由于国内人民生活水平的提高，科技不断地进步，控制不断地完善，从而促使直接转矩控制技术在电气传动系统领域占据主导权，也使得交流异步电机被广泛应用。在交流异步电机控制系统设计领域中，直接转矩控制成为目前一处亮丽的风景线，因为其开发资源众多，开发经验丰富，最重要的是成本较低，控制在用户可承受的范围内，使用坐标变换的方式搭建异步电机系统仿真模型，从而满足对电机转矩和磁通的控制，异步电机系统的动态性能逐渐成为世界各国关注的重点。随着直接转矩控制的异步电机控制系统领域的不断革新，数量越来越大，逐渐成为研究的重点方向，因此新一代的我们要认真去研直接转矩控制构成的交流调速系统。

深入学习异步电机的整体结构和分类，针对交流异步电机直接转矩控制系统当做研究对象。在对交流异步电动机直接转矩控制系统工作原理和各个部分的数学模型进行深入研究的基础上，在MATLAB/SIMULINK对不同部件的传递原理和数学模型进行了深入的研究，建立直接转矩控制的异步电机系统动力学模型，通过仿真结果验证，可以比较各种策略与方案，优化并确定相关参数。最后，对直接转矩控制的异步电机系统分析方法进行了详细比较分析，为科学决策提供可靠的依据。

本次设计经过模型搭建、仿真验证，在学习掌握异步电机工作特性的同时，参考得到的仿真结果，为更进一步的设计开发新的产品奠定坚实的基础。

关键词：直接转矩控制，矢量调节，数学模型，异步电机

Abstract

Due to the improvement of people's living standard, the continuous progress of science and technology, the continuous improvement of control, so that direct torque control technology in the field of electrical transmission system to occupy the dominant right, also make ac asynchronous motor is widely used.In the field of ac asynchronous motor control system design, the direct torque control is now a beautiful scenery line, because of its large number of development resources, rich development experience, the most important thing is that the cost is low, the control within the scope of the users will be able to afford, using coordinate transformation way to build the simulation model of asynchronous motor system to meet the control of the motor torque and flux, the dynamic performance of the asynchronous motor system gradually becomes the focus of world attention.With the continuous innovation in the field of direct torque control asynchronous motor control system, the number of more and more, gradually become the focus of the research direction, so the new generation of we should seriously study the direct torque control ac speed control system.

In-depth study of asynchronous motor structure and classification, ac asynchronous motor direct torque control system as the research object.On ac asynchronous motor direct torque control system working principle and the mathematical model of each part, on the basis of in-depth study, in the MATLAB/SIMULINK to the transmission principle and mathematical model of different parts of in-depth research, establish direct torque control of induction motor system dynamics model, the simulation results verify, you can compare all kinds of strategy and plan, optimize and related parameters were determined.Finally, the analysis method of direct torque control asynchronous motor system is analyzed in detail, which provides a reliable basis for scientific decision.

This design through the model building, simulation verification, in learning to master the asynchronous motor working characteristics, at the same time, reference to the simulation results, for further design and development of new products to lay a solid foundation.

Key words: Direct torque control, vector control, mathematical model, asynchronous motor

摘要.............................................................................. 2

第一章 绪论........................................................................ 5

1.1概述.......................................................................... 6

1.2 交流调速技术的现状........................................... 7

1.3 直接转矩控制技术的发展................................... 8

1.4 仿真工具MATLAB/Simulink简介..................... 8

1.5 课题的研究内容及章节安排............................. 10

第二章 直接转矩控制技术的基本原理.......................... 11

2.1 矿用电机车的数学模型....................................... 11

2.2 异步电动机在两相坐标系上的数学模型........... 15

2.3 直接转矩控制系统的基本结构........................... 16