Dual Closed-Loops Control with Variable-rate Sampling for Internet-based Control System
The insertion of the communication network in the Internet-based control system can induce time-delay, which can degrade the performance of control system and even destabilize the system. To overcome the uncertain Internet time-delay influencing the dynamic performance of control system, the dual closed-loops control with variable-rate sampling strategy is proposed based on the traditional control architecture. The local closed-loop control is running at a higher frequency to stabilize the plant, the remote closed-loop control at a lower frequency to reduce the communication load and increase the possibility of receiving data on time. To deal with large Internet timedelay and data loss fully, the time-delay compensation method is designed based on predictive controller. The effectiveness of the proposed compensation strategy is illustrated by simulation study.
Hongyan Li Ruifan Li
Department of Computer and Electronic Science Hubei University of Economics Wuhan, P. R. China 43020 School of Information Engineering Beijing University of Posts and Telecommunications Beijing, P. R.
国际会议
南宁
英文
2007-07-20（万方平台首次上网日期，不代表论文的发表时间）