نتایج جستجو برای: linear quadratic regulation control

تعداد نتایج: 2245525  

2003
Jinhoon Choi Kwang Soon Lee

For a given initial state, a constrained infinite horizon linear quadratic optimal control problem can be reduced to a finite dimensional problem [12]. To find a conservative estimate of the size of the reduced problem, the existing algorithms require the on-line solutions of quadratic programs [10] or a linear program [2]. In this paper, we first show based on the Lyapunov theorem that the clo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی مکانیک 1387

ارتعاشات یک عامل مزاحم و در برخی موارد تخریب کننده در سازه ها و سیستم ها به شمار می رود. از طرفی به علت ماهیت ارتعاشی بودن همه سازه های پیوسته و وجود فرکانس های طبیعی بیشمار، خطر وقوع پدیده تشدید وجود دارد. بنابراین لازم است که این ارتعاشات را شناسایی و به گونه ای در کنترل خود در آوریم. بخصوص در صنایع هوافضا، که احتمال قرار گرفتن سازه ها در معرض نیروهای برانگیزش خارجی وجود دارد، کنترل ارتعاشات ...

H. Abd El-Wahed Khalifa,

Quadratic programming (QP) is an optimization problem wherein one minimizes (or maximizes) a quadratic function of a finite number of decision variable subject to a finite number of linear inequality and/ or equality constraints. In this paper, a quadratic programming problem (FFQP) is considered in which all cost coefficients, constraints coefficients, and right hand side are characterized by ...

Finding the best weights of the state variables and the control variables in the objective function of a linear-quadratic control problem is considered. The weights of these variables are considered as two diagonal matrices with appropriate size and so the objective function of the control problem becomes a function of the diagonal elements of these matrices. The optimization problem which is d...

Journal: :Mathematical and Computer Modelling 2013
Liubao Deng Yuanguo Zhu

Based on the uncertain optimal control with jump, in this paper, we study a special optimal control problem: linear quadratic uncertain optimal control problem with jump which has a quadratic objective functional for a linear uncertain control system with jump. We obtain the necessary and sufficient conditions for the existence of optimal control.

2014
Shenbaga LAKSHMI Sree Renga RAJA

A state feedback control method for an interleaved boost power converter is designed, which, in turn, can achieve interleaved current sharing among parallel-connected converters. The state feedback control in the continuous time domain is derived using the pole placement technique and linear quadratic optimal method. The load estimator is designed by deriving a full-order state observer to ensu...

2003
Ola Härkegård

When designing control laws for systems with more inputs than controlled variables, one issue to consider is how to deal with actuator redundancy. Two tools for distributing the control effort among a redundant set of actuators are control allocation and linear quadratic control design. In this paper, we investigate the relationship between these two design tools when a quadratic performance in...

Journal: :Optimization Methods and Software 2006
A. Rösch

An abstract linear-quadratic optimal control problem with pointwise control constraints is investigated. This paper is concerned with the discretization of the control by piecewise linear functions. Under the assumption that the optimal control and the optimal adjoint state are Lipschitz continuous and piecewise of class C an approximation of order h is proved for the solution of the control di...

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