基于H_(∞)控制理论的柴油机转速控制系统设计  

Design of diesel engine speed control-system based on H_(∞)control theory

作　　者：吴越 常广晖[1] 吴杰长[1] 刘树勇[1] WU Yue;CHANG Guang-hui;WU Jie-chang;LIU Shu-yong(College of Power Engineering,Naval University of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学动力工程学院,湖北武汉430033

出　　处：《舰船科学技术》2022年第22期96-100,共5页Ship Science and Technology

基　　金：国家自然科学基金资助项目(51579242)。

摘　　要：针对柴油机非线性模型线性化分析过程中的不确定性问题以及现有的PID调速器对抵抗外部扰动不强的问题,试将鲁棒控制理论应用于柴油机转速控制。通过分析不确定系统鲁棒稳定性,建立H_(∞)控制系统并通过求解LMI方法得到H_(∞)控制律,利用Matlab/Simulink以及柴油机非线性机理模型设计仿真实验。表明本文方法相比PID控制器具有较强的模型容错性和抵抗外部干扰性,同时转速控制精度也有了较大的提升。Aiming at the uncertainty problem in the process of nonlinear model linearization analysis of diesel engine and the problem that the existing PID governor is not strong enough to resist external disturbance,the robust control theory is applied to the speed control of diesel engine.By analyzing the robust stability of uncertain systems,established the H_(∞) control system,and obtained the H_(∞) control law by solving LMI.The simulation experiment is designed by using Matlab/Simulink and nonlinear mechanism model of diesel engine.Compared with PID controller,this method has strong model fault tolerance and resistance to external interference,and the speed control accuracy has been greatly improved.

关 键 词：H_(∞)控制 不确定系统 状态观测器 跟踪控制 LMI 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]