Results 171 to 180 of about 9,324,290 (200)

Output Voltage Control of Inverters Using SDRE Tracking and LQT Controllers

2019 6th International Conference on Control, Instrumentation and Automation (ICCIA), 2019
This paper presents novel nonlinear and linear control methods for output voltage control of a three-phase inverter. For implementation of these optimal controllers, the nonlinear and linear models of the system including LC filter have been derived. Moreover, analysis of the system under the State-Dependent Riccati Equation (SDRE) and Linear Quadratic
Pouya Shafiee, Yazdan Batmani
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Distance-Based Multiagent Formation Control With Energy Constraints Using SDRE

IEEE Transactions on Aerospace and Electronic Systems, 2020
We present an optimal control method for distance-based formation control of multiagent systems with energy constraints. We combine the rigid graph theory and state-dependent Riccati equation method to develop a multiagent formation control scheme. We defined a normalized rigidity matrix and use it for the rigorous stability analysis.
Reza Babazadeh, Rastko R. Selmic
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Stability-based SDRE controller for spacecraft momentum management

Acta Astronautica, 2013
Abstract Momentum management of spacecraft aims to avoid the angular momentum accumulation of control momentum gyros through real-time attitude adjustment. An attitude control/momentum management controller based on state-dependent Riccati equation is developed for attitude-stabilized spacecraft.
Mengping Zhu, Shijie Xu
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Investigation of Adaptive SDRE Control Reconfiguration Subject to Control Surface Failures

AIAA Infotech@Aerospace 2010, 2010
This paper investigates the state of the art adaptive G&C design called State Dependent Riccati Equation (SDRE) based Dual-Loop Servo for a reusable launch vehicle (RLV) during reentry flight conditions. The paper captures the basic state dependent equations needed for the dual-loop servo structure: SDRE Outer Loop Servo Serving as the Guidance Loop ...
Quang Lam, Michael Oppenheimer
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APPROXIMATE NONLINEAR OPTIMAL SDRE TRACKING CONTROL

IFAC Proceedings Volumes, 2007
Abstract The intrinsic nonlinearities of aircraft dynamics become exceptionally significant when there are demands for large maneuvers, causing aircraft to operate near the stability limits of the system, where series problems can be encountered, since the real issue becomes dealing with nonlinearities that dominate system behavior.
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Reconfigurable Dynamic Control Allocation with SDRE As a FTFC for NASA GTM Design

2021 American Control Conference (ACC), 2021
There are too many control surfaces for over-actuated aircraft. The coordination and distribution of the efforts between these control surfaces is a problem, and this problem can be solved by Control Allocation (CA). With CA, the required moment, force, or rate can be allocated to actuators more easily.
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Vehicle Tip-over Prevention Using SDRE Controller

2020 6th International Conference on Control, Automation and Robotics (ICCAR), 2020
Vehicle rollovers are known to produce the highest number of deaths amongst vehicle accidents. Rollover prevention systems currently available in commercial vehicles attempts to prevent any wheel lift-off the ground to avoid a subsequent rollover. In literature, attempts that were made to recover a vehicle from a tip-over point after a wheel lift-off ...
Hari M. Nair, Sujatha Chandramohan
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SDRE based stabilization of the affine control system with the stationary linear part

2019 23rd International Conference on System Theory, Control and Computing (ICSTCC), 2019
A stabilizing regulator is constructed for a nonlinear control system with a constant state matrix and a state-dependent input matrix. A regulator is designed by means of the State-Dependent Riccati Equation (SDRE) technique. The novelty of the work is reducing SDRE to the algebraic matrix Riccati equation with constant coefficients.
Mikhail G. Dmitriev, Zainelkhriet Murzabekov, Dmitry Makarov, Gulbanu Mirzakhmedova   +3 more
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SDRE flight control for X-Cell and R-Max autonomous helicopters

2004 43rd IEEE Conference on Decision and Control (CDC) (IEEE Cat. No.04CH37601), 2004
This paper presents a state-dependent Riccati equation (SDRE) flight control approach and its application to autonomous helicopters. For our experiments, we used two different vehicles: an X-Cell-90 small hobby helicopter and a larger vehicle based on the Yamaha R-Max.
Alexander A. Bogdanov, Eric A. Wan, Geoff Harvey   +2 more
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SDRE Trajectory Tracking Control for a Hovercraft Autonomous Vehicle

2018
A hovercraft is an amphibious vehicle lifted by a propeller that causes the effect of an air cushion between the vehicle and the surface. This way, a hovercraft becomes a fast and versatile vehicle to be used in different kinds of tasks such as rescues, environmental monitoring and coast guard patrolling.
Ana Paula Pagotti, Elvira Rafikova, Marat Rafikov   +2 more
openaire   +1 more source