Results 11 to 20 of about 33,209,479 (267)

Control Lyapunov Functions and Zubov's Method [PDF]

open access: yesSIAM Journal on Control and Optimization, 2008
For finite dimensional nonlinear control systems we study the relation between asymptotic null-controllability and control Lyapunov functions. It is shown that control Lyapunov functions may be constructed on the domain of asymptotic null-controllability as viscosity solutions of a first order PDE that generalizes Zubov's equation. The solution is also
Fabio Camilli, Lars Grüne, Fabian Wirth
openaire   +3 more sources

LESO Based Dynamic Surface Control for Hypersonic Flight Vehicle [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
In the presence of model parametric uncertainties and external disturbances, a LESO-based dynamic surface control approach is designed for the longitudinal model of Hypersonic Flight Vehicle (HFV).

doaj   +1 more source

Observer canonical form based robust fault detection and estimation for hyperbolic spatiotemporal dynamic systems

open access: yesIET Cyber-systems and Robotics, 2020
In this study, the authors propose a novel state and a fault estimation scheme for a class of hyperbolic spatiotemporal dynamic systems in the presence of unknown external disturbance.
Xiaodong Xu   +2 more
doaj   +1 more source

Back-stepping sliding mode control method for quadrotor UAV with actuator failure

open access: yesThe Journal of Engineering, 2019
In this article, a fault tolerant controller (FTC) based on back-stepping sliding mode is proposed for a quadrotor unmanned aerial vehicle (UAV) with single-rotor failure.
Zhiqiang Zhu, Songyin Cao
doaj   +1 more source

Non-linear optimal control for multi-DOF electro-hydraulic robotic manipulators

open access: yesIET Cyber-systems and Robotics, 2020
A non-linear optimal (H-infinity) control approach is proposed for the dynamic model of multi-degree-of-freedom (DOF) electro-hydraulic robotic manipulators.
Gerasimos Rigatos   +4 more
doaj   +1 more source

A robust optimal distributed control design for simultaneous voltage regulation and current sharing in DC microgrid

open access: yesIET Smart Grid, 2023
In this article, a robust optimal distributed controller is designed for achieving average voltage regulation and current sharing in a DC microgrid. Each distributed generation unit (DGU) consists of a DC‐DC buck converter that supplies a local constant ...
Ali Amirparast, S. Kamal Hosseini Sani
doaj   +1 more source

Height and attitude tracking control of an unmanned helicopter via a HDOB-backstepping composite control method

open access: yesThe Journal of Engineering, 2019
This study studies the height and attitude tracking control problem of an unmanned helicopter system with disturbances. A composite controller based on the combination of harmonic disturbance observers and backstepping technique is proposed to achieve ...
Ling Han   +3 more
doaj   +1 more source

Design of an Adaptive Flux Observer for Sensorless Switched Reluctance Motors Using Lyapunov Theory

open access: yesAdvances in Electrical and Computer Engineering, 2020
This paper proposes an adaptive flux observer for a sensorless switched reluctance motor. The observer adaptive gains are designed using the Lyapunov theory to guarantee both the accuracy and stability of the sensorless control of a switched reluctance
ABDELMAKSOUD, H., ZAKY, M.
doaj   +1 more source

Decentralised DC voltage control and flexible power regulation for multi-port converter-based energy router

open access: yesThe Journal of Engineering, 2019
The idea of ‘energy router’ (ER) is put forward as a critical application of the energy Internet (EI), especially in the new generation of electric power system to fulfil the power management and to deal with the integration of massive distributed ...
Xin Huang   +4 more
doaj   +1 more source

Stability of interconnected impulsive systems with and without time delays, using Lyapunov methods [PDF]

open access: yes, 2010
In this paper, we consider the input-to-state stability (ISS) of impulsive control systems with and without time delays. We prove that, if the time-delay system possesses an exponential Lyapunov–Razumikhin function or an exponential Lyapunov–Krasovskii ...
S. Dashkovskiy   +3 more
semanticscholar   +1 more source

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