Annals of the University "Dunarea de Jos" of Galati. Fascicle III: Electrotechnics, Electronics, Automation Control and Informatics: Recent submissions
Afișează articolele 101-120 of 230
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Voltage Control Scheme for Three Phase SVM Inverter Fed Induction Motor Drive Systems
("Dunarea de Jos" University of Galati, 2010)This paper presents an efficient implementation scheme for the closed-loop voltage control of an induction motor incorporating ‘Space Vector Pulse Width Modulation (SVPWM)’. Voltage control is required to meet the variation ... -
Identification of a Nonlinear Pneumatic Servo System Using Modular Neural Networks
("Dunărea de Jos" University of Galati, 2010)Sometimes, in the case of highly nonlinear systems the traditional approaches of identification and control could be difficult to implement. In this case, a good alternative are the neural networks. In this paper a modular ... -
Improving the Power Factor at Unbalanced Consumers
("Dunarea de Jos" University of Galati, 2010)Unbalanced consumers have led to power quality problems. It is therefore necessary to have on hand solutions and equipment capable of improving the power quality. This paper provides a comparison on improving the power ... -
Indirect Control of a Low Power Single-Phase Active Power Filter
("Dunarea de Jos" University of Galati, 2010)This paper deals with a low power, single phase active filter used to compensate nonlinear loads. The filter uses the indirect control method and it is based on a particular connection between filter, polluting load and ... -
Dc Link Current Estimation in Wind-Double Feed Induction Genera Power Conditioning System
("Dunarea de Jos" University of Galati, 2010)In this paper the implementation of the DC link current estimator in power conditioning system of the variable speed wind turbine is shown. The wind turbine is connected to double feed induction generator (DFIG). The ... -
Adaptive Filter Used as a Dinamic Compensator in Automatic Gauge Control of Strip of Rolling Proceses
("Dunarea de Jos" University of Galati, 2010)The paper deals with a control structure of the strip thickness in a rolling mill of quarto type (AGC – Automatic Gauge Control). It performs two functions: the compensation of errors induced by unideal dynamics of the ... -
A Timel Microcontroller Based Soft Switched PWM ZVS full Bridge DC to DC Converter
("Dunarea de Jos" University of Galati, 2010)This paper deals with the simulation and implementation of soft switched PWM ZVS full bridge DC to DC converter. The 48V DC is efficiently reduced to 12V DC using a DC to DC converter. This converter has advantages like ... -
Simulation Results of Closed Loop Controlled Interline Power Flow Controller System
("Dunarea de Jos" University of Galati, 2010)The Interline Power Flow Controller (IPFC) is the latest generation of Flexible AC Transmission Systems (FACTS) devices which can be used to control power flows of multiple transmission lines. A dispatch strategy is ... -
Digital Simulation of Closed Loop ZVS-ZCS Bidirectional DC-DC Converter for Fuel Celland Battery Application
("Dunarea de Jos" University of Galati, 2010)A closed loop ZVS-ZCS bidirectional dc-dc converter is modeled and appropriate digital simulations are provided. With the ZVS-ZCS concept, the MATLAB simulation results of application to a fuel cell and battery application ... -
Simulation Results of Current Fed Interline Power Flow Controller Using Simulink
("Dunarea de Jos" University of Galati, 2010)Interline Power Flow Controllers (IPFC) have been used to enhance and optimize the use of transmission facilities, under the concept of a Flexible AC Transmission System (FACTS). The main objectives of FACTS are to ... -
Modeling and Speed Control of Induction Motor Drives Using Neural Networks
("Dunarea de Jos" University of Galati, 2010)Speed control of induction motor drives using neural networks is presented. The mathematical model of single phase induction motor is developed. A new simulink model for a neural network-controlled bidirectional chopper ... -
Simulation of four Switch PWM AC Chopper Fed Single Phase Induction Motor
("Dunarea de Jos" University of Galati, 2010)To improve the performance of motor drives, there is a need to improve the quality and reliability of the drive system. With the high power handling capability of IGBT, pulse width modulated AC chopper can be used in ... -
Analysis and Experimental Verification of Series Resonant PFC DC to DC Converter
("Dunarea de Jos" University of Galati, 2010)The aim of this work is to simulate and implement Series Resonant PFC DC – DC converter using Matlab Simulink. The quality of power consumption in terms of power factor and electromagnetic interference (EMI) levels are ... -
A Novel ZCS-ZVS Hybrid Bidirectional DC-DC Converter for Fuel Cell and Supercapacitor Application
(The Annals of "Dunarea de Jos" University of Galati, 2010)This paper proposes a novel ZCS-ZVS hybrid bidirectional DC-DC converter based on fuel cells and supercapacitor devices. The described converter employs only one high frequency transformers to couple the half-bridge and ... -
An ADCSP-Based Non-Monotonic Framework for Medical Diagnosis
("Dunarea de Jos" University of Galati, 2010)The ability to reason within a dynamical environment is of crucial importance in Artificial Intelligence. The present paper models nonmonotonic reasoning by means of a DCSP (Dynamic Constraint Satisfaction Problems) ... -
Comparison Between ZVS and ZVS-ZCS Bidirectional DC-DC Converter Topologies
("Dunarea de Jos" University of Galati, 2010)In this paper exhaustive comparative analysis has been done between a conventional ZVS converter and the ZVS-ZCS bidirectional DC-DC converters. A novel model of a bidirectional converter and its topology is introduced. ... -
Practical implementation of Embedded Controlled Boost Converter for Solar Installation System
("Dunarea de Jos" University of Galati, 2010)The solar photovoltaic power has received great attention and experienced impressive progress in the countries all over the world in recent years because of more and more serious energy crisis and environmental pollution. ... -
A Case Study Concerning Sales Prediction Using Sales Quantitative Prediction Methods
(2010)The sales condition the entire activity of a enterprise, its variation being considered the main risk factor on the performances and financial position of the enterprise. The importance of elaboration of such budget is ... -
Experimental Results of Bridgeless PFC Boost Converter
("Dunarea de Jos" University of Galati, 2010)This paper deals with the simulation and implementation of a bridgeless PFC boost converter. The Bridgeless PFC Boost Converter Circuit is analyzed, simulated and implemented. The circuit has advantages like reduced ... -
Fea Based Axial Flux Permanent Magnet Linear Oscillating Motor
("Dunarea de Jos" University of Galati, 2010)In this paper the development, finite element analysis(FEA) and electronic control of an axial flux permanent magnet linear oscillating motor (PMLOM) suitable for short strokes is described. The forces for aluminium mover ...
