Bumpless Transfer Control for Switched Systems via a Dynamic Feedback and a Bump-Dependent Switching Law

• Published in: IEEE transactions on cybernetics Vol. 53; no. 8; pp. 1 - 8
• Main Authors: Wu, Feiyue, Wang, Dong, Lian, Jie
• Format: Journal Article
• Language: English
• Published: United States IEEE 01-08-2023; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Bumpless transfer (BT); Closed loops; Control methods; Control systems; dynamic feedback control; Engine control; Feedback control; multiple Lyapunov functions; State observers; switched systems; Switching
• ISSN: 2168-2267; 2168-2275
• DOI: 10.1109/TCYB.2022.3221162

This article investigates the bumpless transfer (BT) control problem of switched systems with unmeasured states. Note that the control input signal of the switched system jumps when switching occurs, which may adversely affect the performance of switched systems. By introducing a modified state observer and an auxiliary continuous control signal, a novel description of the BT performance for the system is presented. Moreover, a compensation-based dynamic BT controller and a bump-dependent switching law are designed to solve the BT control problem. As a result, the developed control method ensures the stability of the closed-loop system while maintaining BT performance. The validation of the results can be provided by applying the proposed BT control method to an example of an aero-engine control system.