标题: | 可变结构与模糊逻辑控制做非线性动态系统的稳健控制 Robust Control of Nonlinear Dynamic Systems Using VSC & FL |
作者: | 高志宏 Kao, Chih-Hung 邱俊诚 Jin-Chern Chiou 电控工程研究所 |
关键字: | 可变结构控制;模糊逻辑控制;VSC;FLC |
公开日期: | 1996 |
摘要: | 近几年来,对于非线性动态系统的稳健控制已经有许多的努力与成 果,而在本论文中提出另一种以可变顺滑平面的顺滑模态控制结合模糊逻 辑法则而成的稳健控制。由于顺滑模态控制在控制器的求得上,依赖着复 杂的运算,所以我们以较简单而且不需复杂计算的模糊逻辑法则来替代。 其次,提出了一套以可变顺滑平面的模糊顺滑模态控制,其中以变化顺滑 平面的方法做控制,以改善以传统顺滑模态控制(固定一顺滑平面)在暂 态的效果。本方法的特点包括:减少顺滑模态控制中的切跳现象,提供一 个简单的控制器设计过程,有效抗距系统参数变化和外来干扰以及对于暂 态和稳态时的改善。 Robust control of nonlinear dynamic systems has been studied for years. Inthis dissertation, a new robust controller design of nonlinear dynamic systemsis proposed by combining with sliding mode control, and fuzzy logic. Essentially, the sliding mode control uses discontinuous control action to drive state trajectories toward a specific hyperplane in the state space, and to maintain the state trajectories sliding on the specific hyperplane. This principle provides a guideline to design a fuzzy controller. In order to improve traditional sliding mode control with unique sliding surface in transient response, a sliding mode control with variable sliding surface is proposed in this thesis. Attractive features of the proposed method include a systematic procedure of controller design, a reduction in chattering, transient and steady-state response are improved, robustness against model uncertainties and external disturbances. Three numerical examples are given to demonstrate the effectiveness of the proposed method. |
URI: | http://140.113.39.130/cdrfb3/record/nctu/#NT850327020 http://hdl.handle.net/11536/61674 |
显示于类别: | Thesis |