Affiliation:
1. College of Information Science and Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
Abstract
This article is concerned with the prediction of time delays and a control method for networked control systems (NCSs). We propose to predict the network-induced delays online with least squares support vector machines (LSSVM) optimized by particle swarm optimization (PSO). Then self-tuning proportional–integral–derivative (PID) control with variable delays is adopted in the NCSs. The recursive least squares (RLS) method is used to identify the parameters of the controlled objects, which can adapt to changes in dynamic models. Simulations verified the excellent performance of network delay prediction and networked control, and stable closed-loop control can be realized.
Funder
National Natural Science Fund
the Department of Education Science Foundation in Hubei Province
the open research foundation of Engineering Research Center for Metallurgical Automation and Detecting Technology
Open foundation for Key laboratory for ferrous metallurgy and resources utilization of ministry of education
Cited by
5 articles.
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