工厂化海水养殖水温Smith补偿控制

摘要

Considering the characteristics of industrialized mariculture, a two-order delay mathematic model of water temperature regulation system is constructed, Smith compensator is designed and simulated in MATLAB environment. The obtained results show that the proposed Smith compensator is stable, reliable and responded rapidly compared with direct PID control. It has minor settling time and excellent dynamic and steady-state characteristics.%针对工厂化海水养殖的特点，建立养殖水温调节系统的二阶迟滞数学模型，设计 Smith 补偿器，并在MATLAB环境下进行仿真研究。结果表明：所设计的Smith补偿器性能稳定，可靠性高；与直接PID控制相比，基于Smith补偿器的养殖水温调节系统响应迅速，调节时间短，具有良好的动静态性能，对工厂化海水养殖具有积极的指导作用。