毕业论文（设计）-磁悬浮小球控制系统软件设计.doc

磁 悬 浮 小 球 控 制 系 统 软 件 设 计 摘 要 磁悬浮技术具有无摩擦、无磨损、无需润滑以及寿命较长等一系列优点，在能源、交通、航空航天、机械工业和生命科学等高科技领域有着广泛的应用背景。 随着磁悬浮技术的广泛应用，对磁悬浮系统的控制已成为首要问题。本设计以PID控制为原理，设计出PID控制器对磁悬浮系统进行控制。 在分析磁悬浮系统构成及工作原理的基础上，建立磁悬浮控制系统的数学模型，并以此为研究对象，设计了PID控制器，确定控制方案，运用MATLAB软件进行仿真，得出较好的控制参数，并对磁悬浮控制系统进行实时控制，验证控制参数。最后，本设计对以后研究工作的重点进行了思考，提出了自己的见解。 PID控制器自产生以来，一直是工业生产过程中应用最广、也是最成熟的控制器目前大多数工业控制器都是PID控制器或其改进型尽管在控制领域，各种新型控制器不断涌现，但PID控制器还是以其结构简单、易实现、鲁棒性强等优点，处于主导地位。 ABSTRACT Magnetic suspension technology, which has a series of advantages such as contact-free, no friction, no wear, no need of lubrication and long life expectancy, is widely concerned and adopted in high-tech areas such as energy, transportation, aerospace, industrial machinery and life science． With the extensive application of maglev technology, the control of the maglev system has become a priority. In this paper, for the principle of PID control, PID controller designed to control magnetic suspension system. On the basis of analyzing of magnetic suspension system’s structure and working principle, its system mathematical model was established, this thesis describe PID controller designed and get control scheme. It gets the better control parameters by MATLAB software simulation studies, and real-time control of magnetic suspension control system to verify the control parameters. The key research works for further study are proposed at last．Since PID controllers have been the process of industrial production has been most widely and most sophisticated controller. Most industrial controllers are PID controllers or modified. While in the control area, a variety of new controllers continue to emerge, but the PID controller is its simple structure, easy to implement, robust, etc., in a dominant position. Key words: magnetic suspension system; PID controller; MATLAB simulation  目 录前 言 1 第1章 磁悬浮系统的结构 9 §1.1 系统组成 9 §1.2 磁悬浮实验本体 9 第2章 磁悬浮小球软件设计 11 §2.1 整个程序组成 11 §2.2 显示模块 12 §2.3 AD/DA转换模块 10 §2.3.1 AD转换 15 §2.3.2 DA转换