【作者】 王水林；

【导师】 王长德； 夏富洲；

【作者基本信息】 武汉大学 ， 水利水电工程， 2004， 硕士

【摘要】 本文论述了渠道运行自动控制的必要性，针对渠道运行具有非线性，时滞性且无法建立精确数学模型等特点，采用鲁棒控制理论研究渠道运行问题，从而为渠道运行控制设计和研究建立起一个完整的框架体系。 研究了渠道运行控制系统数学模型的建模方法，建立起渠道运行控制状态空间方程，将明渠水力学的问题转化为控制论问题。将最优控制理论应用到渠道系统运行管理中设计出最优控制器，并对不同的初始条件进行模拟仿真，验证所建立的渠道运行控制理论和设计方法是可行的。对H~∞控制理论进行了深入的分析并将其用于渠道控制中，仿真结果表明该控制器在抑制干扰方面明显优于最优控制器。 最后，针对基于H~∞最优控制理论设计出的控制器阶数高，结构复杂，实现较困难等特点，提出了一种基于非迭代算法的鲁棒控制器的设计方法。更多还原

【Abstract】 In this thesis, the necessity of automatic control of canal operation is discussed The canal operating has nonlinear , time lag and can’t establish accurately mathematical model. By studying the canal operating control problem with robust control theory, the thesis set up a theory framework for the design and research of canal operating control.By studying the modeling approach about canal operating, the state-space equation on canal operating control system is established, and the open-channel hydraulic problem can be transformed into a control theory problem. Applying optimal control theory and optimal estimate theory to canal system, the thesis works out the optimal controller. By simulating operation of canal control system under several typical initial conditions, the validity of established theory and design method on canal operating control are tested. It deeply analyze the theory of H∞ control and gets the theory in canal control and the results of computer simulation show that ,the robust controlled is superior to the optimal controller in respect of preventing disturbances of system.Lastly, the robust excitation controller is designed in line with the H∞ optimal control theory is suggested. But it has many disadvantages, such as the high order of the controller, complicated and difficulty to apply in engineer This paper formulates a no iterative methodology for designing robust exciting controller for the system.更多还原