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}_{\infty } $控制系统并通过求解LMI方法得到$ {H}_{\infty } $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}_{\infty } $ control system, and obtained the $ {H}_{\infty } $ 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.
2022,44(22): 96-100 收稿日期:2021-08-10
DOI:10.3404/j.issn.1672-7649.2022.22.017
分类号:TP273
基金项目:国家自然科学基金资助项目 (51579242)
作者简介:吴越(1988-),男,硕士研究生,研究方向为舰船动力装置自动化及仿真技术
参考文献:
[1] 束长健, 曾洁, 邹娟, 等. 基于模糊自适应PID控制的柴油机调速模型仿真研究[J]. 铁道机车与动车, 2020(1): 9–12
[2] 贾波凯. 基于改进粒子群算法的柴油机调速策略研究[D]. 北京:中国舰船研究院, 2019.
[3] 李宗营, 马传杰, 杨传雷, 等. RBF神经网络对STC柴油机调速系统性能改善研究[J]. 应用科技, 2018, 45(5): 102–107
[4] 任伟杰, 麻恒进, 孟凡军. 基于鲁棒控制理论的单轴转台动态性能研究[J]. 航空精密制造技术, 2021, 57(3): 24–28+32
[5] 尚冠宇, 孙童真. 采用自适应观测器的共轴多旋翼无人机鲁棒控制[J]. 电光与控制, 2021, 28(6): 85–89
[6] GOUBEJ M, et al. Employing finite element analysis and robust control concepts in mechatronic system design-flexible manipulator case study[J]. Applied Sciences, 2021, 11: 3689
[7] 董晴, 季学武, 刘玉龙,等. 基于LPV/H_∞鲁棒控制的重型商用车自动循迹[J/OL]. 清华大学学报(自然科学版): 1-9 [2021-08-10].