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针对网络控制系统模型参数选取困难的问题,利用特征模型和动态特征模型的自适应控制方法在实际工程中建模简单、控制精度较高的特点,以直流电机的网络控制系统为例,研究了具有时延和数据丢包网络情况下的网络控制系统,提出了基于特征模型的自适应控制方法和基于模糊动态特征模型的自适应控制方法.仿真结果表明:丢包率对特征模型控制器系统的影响较大,而网络延时对模糊动态特征模型控制器系统影响较大.所提两种方法均可有效保证网络控制系统的控制性能.
Aiming at the problem of difficulty in selecting parameters of networked control system model, this paper makes use of the characteristics of model and dynamic characteristic model adaptive control method in the actual project modeling is simple, high control accuracy characteristics of DC motor network control system, for example, studied A networked control system with time delay and data packet loss network is proposed based on feature model adaptive control method and fuzzy dynamic feature model based adaptive control method.The simulation results show that the packet loss rate of the feature model controller , While the network delay has a great influence on the fuzzy dynamic characteristic model controller system.The proposed two methods can effectively ensure the control performance of the networked control system.