Robust H∞ control of dynamic supply chain system based on networked manufacturing

In order to control the system un-stability caused by uncertainty in supply chain system, we implement research on uncertain linear dynamic supply chain system with time-delay. Thus, a three-tier dynamic supply chain model is built based on networked manufacturing. By using linear matrix inequality (LMI), we get robust H_∞ control strategy. Through feedback controller u_k design, it can effectively inhibit time-delay τ and uncertain disturbance demand d_k. The case analysis results show that our designed robust controller can make supply chain sub-system and global supply chain system stable with inhibition γ.