Development of constrained control allocation for ship berthing by using autonomous tugboatsInternational Journal of Control, Automation and Systems - Tập 9 - Trang 1203-1208 - 2011
Phuoc Van Bui, Young Bok Kim
In this paper, we propose a new approach to ship berthing by using autonomous tugboats. This approach overcomes the nominal effectiveness problem of actuators at slow speed maneuvering to improve the ship operation in the harbor area. The proposed SMC gave us a sliding mode control law that guarantees position tracking with desired velocity in the presence of environmental disturbances. The thrust...... hiện toàn bộ
Direct power control of grid connected voltage source inverters using port-controlled Hamiltonian systemInternational Journal of Control, Automation and Systems - Tập 15 - Trang 2053-2062 - 2017
Yonghao Gui, Gil Ha Lee, Chunghun Kim, Chung Choo Chung
This paper presents a new direct active and reactive power control (DPC) scheme for a three-phase grid connected voltage source inverter (VSI) based on the passivity viewpoint using the port-controlled Hamiltonian (PCH) system. The proposed controller consists of feedforward and feedback parts. The feedforward part (the reference inputs) is generated through the flatness of the dynamics of the VSI...... hiện toàn bộ
Adaptive Event-triggered Control for High-order Nonlinear Systems with Deferred Asymmetric Full-state ConstraintsInternational Journal of Control, Automation and Systems - Tập 21 - Trang 2183-2190 - 2023
Liuliu Zhang, Yue Guo, Changchun Hua
This paper investigates the adaptive event-triggered tracking problem for high-order nonlinear systems with deferred asymmetric time-varying full-state constraints. Firstly, a shifting function is introduced to remove the constraint bounds of the system state’s initial value, and a novel time-varying nonlinear function is adopted to deal with the asymmetric full-state constraints. Secondly, a coor...... hiện toàn bộ