【摘要】 根据新型飞机除冰车加热系统的实验数据及其工作原理,建立了加热系统数学模型,并针对该系统的大迟延和模型不确定性,将基于模糊规则切换的P-Fuzzy-PID多模控制引入到加热系统的温度控制中。理论分析和仿真结果表明,应用这种方法所设计出的飞机除冰车加热系统,在稳定时间和稳态精度方面均优于单一的PID控制和模糊控制。该研究具有一定的实用价值,为P-Fuzzy-PID控制在飞机除冰车加热系统中的应用打下理论基础。更多还原

【Abstract】 A mathematical model is presented according to experimental data and the principle of operation of the aircraft deicing vehicle heating system.In order to overcome the large delay and the uncertainty of the system,a P-Fuzzy-PID controller with fuzzy switching based on fuzzy rules is applied to the aircraft deicing vehicle heating system.Theoretical analysis and the results of simulation show that this fuzzy compound control method has shorter stable time and smaller stable error compared with pure PID controller or fuzzy logic controller.Its conclusion is of some practical value,and gives the basis of P-Fuzzy-PID control applying in aircraft deicing vehicle heating system.更多还原