Search

This paper presents the theoretical basis that models the behavior of The switched reluctance machines and their drives. The general characteristics, the differential equation system that constitutes the mathematical model of the motor and the Simulink's blocks, which have been built for running the simulation, are outlined. The results of the simulation have been shown and compared with those obtained experimentally. The Simulink model is used for studying the Switched Reluctance motor drive behavior under some operation conditions and theoretical explanations for the simulation's results are given in every case. [ABSTRACT FROM AUTHOR]

The article presents an experiment which explores areas of high yields work in the system of electro-hydraulics. It performs an identification of the subsystems of the induction motor using centrifugal pump that transports pulp latheritic hydromixes. A fuzzy algorithm is shown, which correlates the functions offered from losses based on the moments equation of electric drives with the purpose of minimizing the input power from the experimental and technological context of the system.

The article examines the significance of fuzzy logic control algorithm, which offers the specificities of the electric subsystem and mechanic of the operations. According to the authors, it is of interest a block compensator of the electromagnetic torque that improves the work of the fuzzy controller's before the cavitation phenomena. Experimental results are shown with the controller operating at the leaching plant of the Ernesto Che Guevara Corp.

In this article, it will be carried out an itemized analysis of the welding sources evolution in their last stage, to outline the future forecasts that are expected in this field that so much importance has at the present time. On the other hand, and keeping in mind the new requirements of efficiency and reliability that are demanded to the welding sources, is necessary to analyze if the technology of production of these sources is as mature as it is said or it is necessary to impel it more in some concrete aspects of the same one. [ABSTRACT FROM AUTHOR]

In the paper, the productive flow existing in the nickel producer enterprise Commandant Ernesto Guevara was described until the stage of dry milling, with an emphasis on the technical details of greater relevancy in the process. There was analyzed the influence of the amount of mineral in the system over the energy consumption performance of the milling. Finally it were identified the technological requirements imposed by the 215 - TR - 201 laterite carrier to the electric drive, according to the characteristics and needs of the process. [ABSTRACT FROM AUTHOR]

The fundamental idea of this article is to control a steps motor using the parallel port of a computer and demonstrate the temporary efficiency of the applications that are executed in prepared systems to execute tasks of real time. To take advantage of to the maximum capacity of strict real time that RT-Linux offers us for the control of electric workings. A small software is developed in language C that sent the signs to the parallel port in the necessary time. This software is not designed with commercial, only allows to carry out tests on the control circuit designed for this purpose. [ABSTRACT FROM AUTHOR]

The work presented in this paper is a complement to the control and acquisition tasks which were explained in "Application of RT-Linux in the Control of Steps Motors. First Part", so that those both real time tasks can be fully related in order to make the whole control system more accurate. The employed techniques are those of Real Time Taking advantage of the possibilities of the micro kernel RT-Linux and the free software distributed in the Unix/Linux operating systems. The signals are obtained by means of an AD converter and are shown in screen using Gnuplot. [ABSTRACT FROM AUTHOR]

In this article is tested a virtual controller using fuzzy logic for a hybrid system of power generation. LABVIEW is used as a digital simulation tool obtaining descriptive graphical results of the action of the driver as well as a graphical interface of the behavior of the system. [ABSTRACT FROM AUTHOR]

In this article we make an analysis of two sensors applied in renewable energies (wind and solar), obtaining an ideal law of control. For the chosen energetic sources there appear technologies of high frequency of commutation and of high efficiency. Technologies of digital simulation validate the results. [ABSTRACT FROM AUTHOR]