自抗扰控制器在柴油机转速控制中的应用  

Application of ADRC in speed regulation system of diesel engine

作　　者：李玉东[1] 胡大斌[1] 夏极[1] 

机构地区：[1]海军工程大学船舶与动力学院,湖北武汉430033

出　　处：《舰船科学技术》2010年第11期43-46,共4页Ship Science and Technology

摘　　要：柴油机作为转速控制系统的被控对象时,是一个非线性、时变的环节,传统PID控制效果不够理想。简要介绍了自抗扰控制技术,基于自抗扰控制技术设计了ADRC控制器。仿真结果表明,利用自抗扰控制理论设计的控制器,能有效提高调速系统精度和抗扰动能力。通过与传统PID控制器的仿真比较,体现出了ADRC控制器较小的超调量及对外界干扰有较好的抑制作用等优点。仿真时在传统PID控制器中引入了跟踪微分器,结果表明用跟踪微分器能改善PID控制器的性能。As an object of the speed regulation system,the diesel engine is non-linear and timevariant.The traditional PID controller always has an unsatisfactory performance.The active disturbance rejection control technique was proposed briefly in this paper.Based on the active disturbance rejection control technique,an ADRC controller is designed.The computer simulation result shows that the ADRC controller improves the precision of system and the ability of restraining the load disturbance.The simulation comparison between traditional PID controller and ADRC controller showed the good characters ADRC controller such as small overshoot and good robustness of the control system.The computer simulation rusult shows that it is feasible to improve the traditional PID controller with the tracking differentiator.

关 键 词：ADRC 柴油机 调速系统 PID控制 

分 类 号：U664.121[交通运输工程—船舶及航道工程]