Problems in the Control of Nonlinear Electromagnetic Levitation Devices

本课题研究非线性电磁悬浮装置的控制器设计。这些装置用于各种应用，包括非接触式轴承，悬架和高速位置执行器。它们对包括运输和机器人系统在内的广泛系统的性能和效率至关重要。这些装置的动力学方程是高度非线性的，开环系统本身是不稳定的。本课题主要研究非线性电磁悬浮装置的非自适应连续控制律的综合，以及某些状态需要估计的情况下控制器的设计。期望本研究能为高速运行、气隙变化大的电磁悬浮装置的控制提供更有效的方法。

This project addresses controller design for nonlinear electromagnetic levitation devices. These devices are used in a variety of applications including non-contact bearings, suspensions, and high speed position actuators. They are critical to the performance and efficiency of a broad class of systems including transportation and robotic systems. The dynamic equations of motion for these devices are highly nonlinear and the open loop system is inherently unstable. This project focuses on two problems comprising (1) the synthesis of nonadaptive continuous control laws for nonlinear electromagnetic levitation devices, and (2) the design of controllers for the case where some states must be estimated. It is expected that this research will provide more effective methods for controlling electromagnetic levitation devices which must operate at high speeds and have large air gap variations.