基于多模型专家PID控制的飞机液冷车温控系统建模与仿真  

Modeling and Simulation of Temperature Control System for Aircraft Liquid Cooling Vehicle Based on Multiple Model Expert PID Control

作　　者：李旭[1] 雷金果[1] 张永亮[1] 

机构地区：[1]空军勤务学院航空四站系,江苏徐州221000

出　　处：《装甲兵工程学院学报》2017年第3期75-79,共5页Journal of Academy of Armored Force Engineering

摘　　要：针对常规PID控制难以满足模型不精确、工作环境复杂的非线性时变飞机液冷车温控系统要求的问题,提出了飞机液冷车多模型专家PID温度控制方法。根据飞机保障需求和液冷车工况的不同,分别建立了制冷工况和制热工况下2种数学模型,设计了多模型专家PID温控系统,并利用Simulink软件进行了仿真研究。仿真结果表明:与常规PID控制和仅针对制冷工况的单模型专家PID控制相比,多模型专家PID控制能更有效地提高飞机液冷车温控系统的瞬态响应速度,并改善其稳态精度和抗干扰性,具有良好的应用前景。Aiming at the problem that the common PID control method is hard to satisfy the control demand of the temperature control system for aircraft liquid cooling vehicle which is a system with nonlinearity,time varying,imprecise model and complicated work environment,a multiple model expert PID temperature control method is put forward. According to the aircraft support demands and the liquid cooling vehicle＇s working condition,two different mathematical models in the refrigeration condition and the heating condition are built respectively,and a system of multiple models expert PID temperature control system is designed,and further studies on the system are done based on Simulink. The simulation results show that compared with the common PID control and the single model expert PID control in the refrigeration condition,the multiple model expert PID control is superior,it can improve the transient response,the steady state accuracy and the interference immunity of the system,having a nice prospect for applications.

关 键 词：温度控制 专家PID控制 飞机液冷车 仿真 

分 类 号：V351.3[航空宇航科学与技术—人机与环境工程] TP273[自动化与计算机技术—检测技术与自动化装置]