The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The approaches for the parametric synthesis of the automatic control system (ACS) using the genetic algorithm that performs an approximation of Pareto-optimal solutions set are suggested. As a result, two approaches to multi-criteria optimization of ACS were considered: (1) the optimization problem was considered to be three-criteria for equally important criteria, (2) the optimization problem was...
In this study, Q and R weight matrices of a Linear Quadratic Regulator (LQR) were optimized to control three-degree-of-freedom four-rotor Quadrocopter system (3 DOF Hover). The weighted matrices, obtained by Darwinian Particle Swarm Optimization (DPSO) and Fractional Order Darwinian Particle Swarm Optimization (FODPSO) methods, have been tested on the simulation model of Quadrocopter. The weight matrices,...
The paper presents a two-stage model for achieving feasible optimal solution along with numerical validation for the exactness of the available second order cone relaxation in the distribution optimal power flow problem. To this end, the IEEE 13-bus, 34-bus and 123-bus distribution power systems are adapted by balancing the various feeder segments and by populating selected nodes with photovoltaic...
This article aims to optimize metaheuristics for continuous variable problems often encountered in the engineering field and its application in the medical field for the resolution of heart disorders. The work, based on the model of Yanagihara, Noma, and Irisawa (YNI) consists of understanding and isolating the human cardiovascular system using a hydro-electromechanical (HEM) approach, we also include...
The location problem of logistics center is the key process of logistics distribution, in order to improve the accuracy of the location of logistics center, this paper according to the parallelism and characteristics of global optimization of genetic algorithm. A method based on genetic algorithm is proposed to solve the problem of logistics center location, and set up with the minimum total cost...
This work develops a technique to design a feedback stabilizing control law for an unstable autonomous switched system. This method is analyzed and then applied to the DCDC buck converter when considering the uncertainty of the parameters in the model. Based on this model, a control law is design to allow the output voltage track a reference voltage when the load is changed. The control objective...
This paper presents a method to generate C code from MATLAB code applied to a nonlinear model predictive control (NMPC) algorithm. The C code generation uses the MATLAB Coder Toolbox. It can drastically reduce the time required for development compared to a manual porting of code from MATLAB to C, while ensuring a reliable and fairly optimized code. We present an application of code generation to...
This paper presents a model reference adaptive control (MRAC) based on bacteria foraging optimization algorithm (BFOA) to control maglev model CE152 which is unstable nonlinear system. An adaptive controller is designed to keep the magnetic ball suspended in the air counteracting the weight of the object. A MRAC based on BFOA to control of this system is designed and simulated using Matlab/Simulink...
The article describes the structural and computer optimization model of a photo-wind hybrid electrical system to determine the design parameters of the solar and wind equipment and optimization of their interconnected operation. The model is developed in the graphical software environment simulation MatLab Simulink and used for multidimensional data analysis. It lists only basic details on working...
In this current research an optimized mechanism with four bar closed linkage with appreciable clearances over joints is designed. The characteristics have been evaluated and mathematical simulations have been done using differential evolution for solving nonlinear differential equation in order to stabilize and reduce vibrations of the robotic arm in industrial implementation and research. It can...
In this paper we present a C programming language implementation of a predictive control algorithm. The code was compiled and run under the same set of hypotheses using a standard open-source C compiler, and on three real time platforms, each with different technical specifications.
This paper gives an application of the use of particle swarm algorithm of reinforced concrete axially loaded compression members which were designed using limit state approach. The minimization of cost of these reinforced concrete compression members is carried out to get the most optimal solution in the cross section as well as in the placement of reinforcement the reinforcements at specified intervals...
Generation side of the Power industry has taken a major leap towards successfully extracting energy from the different Renewable Energy Sources (RES). Day-by-day continuous efforts are made in order to utilize more energy from these RES rather than depending on the conventional energy sources mainly for these reasons: to attain pollution-free environment, to minimize the fast depletion of the natural...
A membrane filtration system is a switching system that operates in a sequence of two operating modes: filtration and cleaning. The aim of this paper is to find the optimal switching instants in order to improve the water production of the process. The dynamic behavior of the membrane filtration system described by a filtration model suitable for optimization and control purposes. The problem is solved...
This paper presents the computer-aided design procedure of the automatic control system (ACS) on the basis of fuzzy logic. The genetic algorithm based approach to design of the fuzzy control system on the chosen quality criterion is considered. The mathematical model of the fuzzy logic based pulse control system is suggested, that is developed with MATLAB/ Simulink/ Fuzzy Logic Toolbox. The results...
In this research paper, a 24-hour ahead optimal energy management system (EMS) for an isolated industrial microgrid containing wind, PV solar, diesel generator, microturbine and energy storage is developed and analyzed. The main goal of the microgrid EMS optimization model is to minimize the cost of energy production, maximize the economical benefit of the energy storage and ensure the renewable energy...
Currently, most of speed ratio optimizing methods for automotive transmission system belong to static optimization , while values of transmission ratio in the whole optimization process of velocity ratio are changing constantly. In order to obtain the best economic performance for the vehicle, corresponding gear- shift schedules should be adopted to different speed ratio. The paper has put forward...
This study aims to mathematical modeling of a mechanism for a solar tracker system of two axes as well as the modeling of stepper motors that drive each axis, that to get the best angle of incidence between the sun and photovoltaic plate (90o ). The proposed architecture was modeled using the conversion method of the kinetic energy and potential of Lagrange and stepper motors were modeled by detailed...
Solving sudoku is a very challenging problem. It is not only a logic problem, but also can be seen as a mathematic problem. In this paper, we develop a binary integer linear programming (BILP) model for solving Odd/Even sudoku puzzles. Consequently, we solve the BILP model by using the optimization toolbox of MATLAB software. The performance of the proposed model was tested under different difficulty...
This paper presents a framework for the systematic design of inductor-less regulated cascode (RGC) stages. Targeting high-speed fiber optic data receiver front-ends, the technique reported combines the symbolic solution of the small-signal model of the RGC and the use of gm/ID based lookup tables to efficiently explore and optimize the resulting design space. A practical design is discussed and implemented...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.