电气方向本科毕业设计方案论文.docVIP

电气方向本科毕业设计论文 本文由wzwayj贡献 doc文档可能在WAP端浏览体验不佳。建议您优先选择TXT，或下载源文件到本机查看。 xxx 大学本科生毕业设计（论文） 摘 要 作为机电一体化产品典型代表的主动型磁悬浮轴承，它是利用电磁力将转 子悬浮于空间，实现定子与转子之间没有任何机械接触的一种新型高性能轴承。 它具有无摩擦、无磨损、无需润滑及寿命长等一系列传统滚动轴承和滑动轴承所 无法比拟的优点，在超高速精密数控机床、机器人和航空航天等高科技领域具有 非常广泛的应用前景。 本课题的背景是一个用于本科生教学的实验装置——单自由度磁悬浮控制 系统实验装置。单自由度磁悬浮轴承是组成磁悬浮轴承系统的基本单元，它结构 简单，相应的结构、模型和控制算法也比较简单。但对于它的研究，有助于研究 者综合运用已学到的知识，进一步学习如何完整地完成一项设计任务。 本文基于磁路理论建立了单自由度磁悬浮实验系统的非线性动力学模型， 并 对其在平衡位置处进行了线性化，得到一个线性近似模型，在此线性近似模型的 基础上进行连续域控制器的设计，并在 MATLAB/SIMULINK 环境下进行了仿真 和比较分析。在此基础上，将控制器进行离散化，在离散化模型下也进行了系统 的仿真和分析。 采用 s-BOX 作为控制系统硬件，搭建了单自由度磁悬浮实验控制系统的数 字控制平台，实现对实验系统的控制。最后，对所设计的控制器在实验系统上做 了控制实验。实验结果表明，所设计的控制器基本能使实验装置按照预期目的正 常工作。 关键词： 磁悬浮， 线性化， 动力学模型， 单自由度， 仿真 1 xxx 大学本科生毕业设计（论文） ABSTRACT As a typical product of Mechatronics, Active Magnetic Bearings (AMB) are new-style bearings with high performance. Its rotor is suspended by the electromagnetic force, so that the rotor can spin at a high speed without any mechanical contact. Comparing with the traditional roll bearings and sliding bearings, AMB has many outstanding merits, such as no friction, no fray, lubrication-free and lasting life, which makes it have a wide application, including high-speed high-precision numerically-controlled machine tool, robot, on. The background of this subject is an experimental device which is used for the undergraduate teaching. The device is about the control of a single-degree-of-freedom magnetic bearing, which is the basic unit of a magnetic bearing system. Its structure is relatively simple, as well as the model and the control algorithms, but studying about it still has great benefits for researchers, such as using acquired knowledge and learning how to accomplish an integrated design task. Based on the theory of magnetic circuit, a nonlinear dynamics model of the single-degree-of-freedom magnetic bearing experimental system is set up. The linear model is obtained by linearization about the equilibrium position, and a continuous t