容积室压力的无模型自适应控制研究

为实现对具有非线性、时变和多干扰等特性的机车气制动力的精确控制，提出一种基于无模型控制算法的容积压力控制方法。它不依赖控制系统参数数学模型，不需要复杂的人工参数整定即可控制时变、多变量等复杂过程，可以避免建模不精确带来的系统误差，实现对气室压力的精确控制。仿真试验表明，该系统具有响应快速、控制精确、适应能力强、控制稳定等优点。

Study on model-free adaptive control of volume-chamber pressure

According to the time-varying and nonlinear characteristics of the locomotive pneumatic brake force control,the Model- Free Adaptive Contro(lMFAC) approach is applied to the volume chamber pressure control,which directly determines the pneumatic brake force.The design of controller is model-free and needs no complex parameter tuning.Based directly on the input and output information of the system,the chamber pressure can be precisely obtained by Model-Free Algorithm.The model-free control is es- pecially useful for real nonlinear systems whose model parameter are very difficult to be identified and time varying.The simula- tion control results show that the algorithm has such advantages as quick response,high control accuracy and good robustness for nonlinear systems.