نتایج جستجو برای: dynamics control

تعداد نتایج: 1722713  

G.B. Gharehpetian, S. Ghassem Zadeh, S. H. Hosseini,

A detailed model of wind power station, including Double Fed Induction Generator, DFIG is presented in this paper. Two control mechanisms are included in the model. The inner control system uses stator flux oriented control for the rotor side converter and grid voltage vector control for the grid side converter. The outer control system is used for wind turbine pitch angle. PSCAD/EMTDC is us...

2008
Ernesto Ponce Claudio Ponce Bernardo Barraza

A neural network that was designed to control a Spirulina aquaculture process in a pilot plant in the north of Chile, is presented in this work. Spirulina is a super food, but is a delicate alga and its culture may be suddenly lost by rapid changes in the weather that can affect its temperature, salinity or pH. The neural network control system presented is complex and non linear, and has sever...

Journal: :Int. J. Systems Science 1999
S.-H. Lee

Gain scheduling control laws have been developed by many researchers (Huang and Rugh 1990, Rugh 1991). Using the extended linearization, Lawrence and Rugh (1990) and Khalil and Kokotovic (1991) proposed the stability results that deal with the response of a nonlinear system to slowly varying exogenous signals. The most recent work on the output regulation for a nonlinear system driven by an exo...

ژورنال: کنترل 2019

This paper has been devoted to the design of a distributed consensus control for a class of uncertain nonlinear multi-agent systems in the strict-feedback form. The communication between the agents has been described by a directed graph. Radial-basis function neural networks have been used for the approximation of the uncertain and heterogeneous dynamics of the followers as well as the effect o...

A.R. Toloei, H. Asgari

In this paper, a quaternion-based finite-time sliding mode attitude controller is designed for a spacecraft performing high-thrust orbital maneuvers, with cold gas thrusters as its actuators. The proposed controller results are compared with those of a quaternion feedback controller developed for the linearized spacecraft dynamics, in terms of settling time, steady-state error, number of thrust...

2006
Yoshiyuki Noda Kazuhiko Terashima

This paper is concerned with the pouring control of tilting-ladle-type automatic pouring systems in casting industries. A new approach to the modeling and control system of the pouring process is proposed. In the approach, the flow rate model is described by a nonlinear system with hydrodynamics. The flow rate control system is built by a feedfoward control using the inverse dynamics of the flo...

Journal: :Int. J. Control 2007
Javad Lavaei Amir G. Aghdam

This paper deals with the decentralized control of an interconnected system, where each subsystem has models of all other subsystems (subject to uncertainty). A decentralized controller is constructed based on a reference centralized controller. It is shown that when a priori knowledge of each subsystem about the other subsystems’ models is exact, then the decentralized closed-loop system can p...

2010
Rui Antunes Fernando Vieira Coito Hermínio Duarte-Ramos

Traditionally Man-Machine Interfaces (MMI) are concerned with the ergonomic aspects of the operation, often disregarding other aspects on how humans learn and use machines. The explicit use of the operator dynamics characterization for the definition of the Human-in-the-Loop control system may allow an improved performance for manual control systems. The proposed human model depends on the acti...

2004
Silvério J. C. Marques Luis F. Baptista José M. G. Sá da Costa

This paper presents an integrated fuzzy approach to recover the performance in impedance control, reducing the errors in position and force, considering uncertainties in the parameters of the manipulator model and contact surface model. This integrated strategy considers a fuzzy adaptive compensator in the outer control loop that adjusts the manipulator tip position to compensate for uncertaint...

Journal: :amirkabir international journal of modeling, identification, simulation & control 2015
hoda n. foghahaayee mohammad b. menhaj heidar a. talebi

in this paper, a new analytical method to find a near-optimal high gain controller for the non-minimum phase affine nonlinear systems is introduced. this controller is derived based on the closed form solution of the hamilton-jacobi-bellman (hjb) equation associated with the cheap control problem. this methodology employs an algebraic equation with parametric coefficients for the systems with s...

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