Abstract 

This work presents a new vision on the diagnosis of railroad Automatic Block Signal Installations (ABS), using the current modern technologies that involve mobile devices or personal computers. The ABS installation is the system of signals between two consecutive railroad stations, stations centralized either electrodynamically (with electromagnetic relays) or electronically (using computers). The system of signals ensure the command and control of traffic train. Currently, failure diagnosis of such installations is done by the staff working in the Signals, Centralizations, Block (SCB) department of the railroad company. The diagnosis time depends on the professional qualifications of the staff (detailed knowledge of the installation’s functioning principles, of the electrical diagrams and related installations), on the practical diagnosis and recovery competencies. A long diagnosis time causes train traffic delays which, in turn, cause passenger discomfort and losses for the transporter companies. In this work we present diagnosis charts for two types of failures of the ABS installation: Failures of the 220 V power circuits in the ABS boxes, and failures of the Transmitting Relays (TR or T) power circuits. The diagnosis charts and their software implementation assist the maintenance staff in quick detection the failure causes for these types of ABS installations. This solution leads to shorter train delays, higher rail traffic security, and to the optimization of the transport services.

Abstract 

We have been listening for a long time to the wide functionality that industrial automation technologies can offer for improving the processes and adding security to the plants and the parts of them. However the price and an unstable market have restricted the deployment of such systems. Nowadays, companies offer too technology-dependent solutions which do not cover user demands completely. Meanwhile, papers from the literature focus on small innovations on specific parts of the industrial automation systems, which do not consider integration and deployment issues, in order to present practical designs [1]. The system presented in this work considers user requirements, including novel advances, all in an integral automation solution suitable for thermal treatments. The modular nature of the architecture allows direct adaptation to specific cases using standard technologies, and a proposal of an IP-based network for connecting the main automation module with the rest of plant. The main purpose of the entire plant is to monitor and control in real-time the temperature of the parts inserted into a resistive furnace. The software is based on m-files that contain the source code that calculates the control coefficients for the next step for ventilation and heating, it verifies the failures that could occur and creates a matrix of the coefficients, in order to make graphics.

Abstract 

The paper deals with a modern solution to measure and analyses selected parameters of any electric motor. A virtual instrument with multiple options for selecting the analyzed parameters is described. The values of motor measurement voltages, currents and speed are read from a specified folder. With the virtual instrument presented in this paper it can be see the motor currents, voltages and speed waveforms and from the acquired data and recorded a set of parameters are computed. Boolean selector determine which signals are selected from the original seven signals (three current, three voltages and speed). It can be extract portions of data from the input signals. The extract portion is defined by begin of the offset (point of start) and the length (end the extraction). This instrument allow timing and transition measurements such as: pulse duration (pulse width), duty cycle (duty factor), preshoot (%), overshoot (%), slew rate. Also this virtual instrument allow to find the first highest (maximum) and the lowest (minimum) point in a set of values in signals of currents, voltages or motor’ speed and find the time of the maximum and minimum values so determined. Knowing these values can be determined the range from the lowest point to the highest point in a set of motor’s start current and voltage.

Abstract 

The aim of this paper is to identify an engineering method to study and to optimize the process of treating the wastewaters from the repairs locomotives industry in terms of quality, cost and environmental impact. The main purpose of this paper is to show how the control systems allowed us to investigate the environmental aspects of a wastewater treatment plant. The final issue is to optimize the process in terms of quality which means to decrease the cost and environmental impact. There are few steps to obtain the final issue. The first step is to establish the flux diagram of the wastewater treatment plant activity in the context of repairing locomotives process. The second step is to define this activity as a sum of processes according with ISO 14001 Standard, aimed to identify the interaction between this processes. To do this must be described the control system of a wastewater treatment method based on Dissolved Air Flocculation (DAF), used to treat the waste waters results from the locomotive repairs activity. A case study was made on a pumping station to illustrate the influence of the control system on this activity. All these sentences were made with environmental tools like: ad-hoc methods and control list methods, Environmental Systems Analysis (ESA) tools, critical synthesis of the processes and theirs modeling, observation and the experiment and statistic calculus. The result of this work is a work procedure in the activity of control quality of the repairs activity, being a practical implementation. The theme is completely original and responds to an actual practice of Environmental Management System.

Abstract 

The paper presents, in the firs part, the importance of the steam generator in the operation of power plants, especially, the importance of the air preheater, the last heat exchange surface on the route of the flue gas, with all physical phenomena produced, which lead to the shaping of the physical model. Then is presented the model in relative units imposed by the literature. The paper proposes the development of a mathematical model in absolute units and the simulation the operation of the air preheater of the steam generator. The theoretical model proposed is implemented in Matlab-Simulink obtained simulations in dynamic regime. In order to validate de model, the simulation results were compared with the parameters measured values of the installations during the real time function. The model wants eliminating the major recalculation sequence of parameters at each step – the patterns in relative units the entire set of coefficients are determined and entered into the model according to the parameters achieved in the previous reference system and meet operating values taken as the basis in developing the work. The approach of such a study is justifies by the development and use of computer technology and digital media communication in dynamic analysis of energy processes.

Abstract 

HID lamps are wide used in lighting systems, also in indoor and outdoor applications. The ballasts necessary for their normal operation could be magnetic or electronic and in the last decade we assist to a debate on which is a better option, the dimming capabilities being one of the most claimed advantages of the electronic ballasts. But, in the last years, several lower cost solutions for getting dimmability with magnetic ballasts have been reconsidered. In this paper, the possibility to dim lamps trough the classical voltage amplitude modulation by means an autotransformer is explored. This solution can be cheaper, robust and most suited for the low budget Africa’s lighting systems. To understand the context, two lighting systems from Antananarivo, capital of Madagascar, and Dakar, capital of Senegal, have been depicted. Experimental tests have been performed on 250 W HID lamps, a High Pressure Sodium (HPS) and a Metal Halide (MH), operated by Very Low Loss magnetic ballast. The range of the voltage modulation has been from 160 V to 250 V and the power consumption, the light output and the harmonics content have been recorded. The energy saving per lamp by dimming to 160V is about 50 to 55% for the considered lamps.

Abstract 

This paper aims to present some problems concerning the electric power management systems of aircraft. In the first sections are presented some converters topologies used on aircraft, principles and digital control schemes for these converters. In the next sections there are presented architecture principles of power management systems using these kinds of converters. Converters are mainly used to adapt the power parameters of the on board sources to the aircraft consumers necessities. On More Electric Aircraft, with VSVF generators, these converters are used to feed the aircraft power buses, each consumer being coupled to the corresponding power bus. Taking into account the great importance of some consumers, it is necessary to ensure its feeding even a part of the on board power sources fails. In this purpose one use by one hand redundant power buses and by other hand the electric power management systems. These systems ensure both the coupling of the power sources to the power buses according to the power necessities and also commute the consumers feeding between the buses using different control strategies. The control strategies consider the available power sources at a time, the consumers it has to be fed and priority order of the consumers.

TRANSITOIRES ET REGIMES PERMANENTS DANS LES CIRCUITS R C INDUCTANCE NON LINEAIRE SOUS TENSION SINUSOIDALE Marian Badea

NOUVEAUX MODELES ET ALGORITHMES ASSOCIES AUX COUPLAGES MUTUELS EN REGIME HARMONIQUE, COMPATIBLES AVEC LA METHODE NODALE MODIFIEE Dumitru Topan, Lucian Mandache

CORRECTIVE SCHEMES FOR VOLTAGE STABILITY ANALYSIS USING TWO DIFFERENT INDICATORS Leonardo-Geo Manescu

LOSS REDUCTION AND SECURITY ENHANCEMENT IN LOADED POWER SYSTEMS
Leonardo-Geo Manescu

STUDY OF THE ELECTROSTATIC FIELD WITH OPEN BOUNDARY USING THE FINITE ELEMENT METHOD AND KELVIN TRANSFORMATION Saul Pasare

A STUDY OF FORCE IN A STEADY MAGNETIC FIELD WITH ASYMPTOTIC BOUNDARY CONDITIONS Saul Pasare

MODELLING AND ANALYSIS OF TEMPERATURE CONTROL PROCESS; A HYBRID PETRI NETS APPROACH Mircea Adrian Drighiciu

A NUMERICAL TWO-TIME APPROACH FOR RF-IC ANALYSIS

Mihai Iordache, Lucia Dumitriu, Grigore Stamatescu

MULTI-LAYERED SPHERICAL MAGNETIC SHIELDING

Branislav Kuzmanovic, Kemal Hot, Dubravko Zigman

VERTICAL DIAMAGNETIC LEVITATION ARRAY WITH EXTENDED STABILITY AREA

Emil Cazacu, Alexandru Stanciulescu

THE MAGNETIC FIELD AND MAXWELL’ EQUATIONS RESULT OF THE COULOMB LAW, RELATIVITY AND QUANTUM MECHANICS

Gheorghe Mihai

THE UNITARY THEORY OF THE ELECTRIC POWERS Gheorghe Mihai

MAGNETIC INDUCED CURRENTS AND VOLTAGES IN DE-ENERGIZED CONDUCTORS BY THE HV TRANSMISSION O/H LINES UNDER NORMAL AND SHORT-CIRCUIT CONDITIONS
George A. Florea, Adrian-Mihail Lipan

FAST SOLVING OF A LINEAR PARAMETRIC MODEL OF A BAW RESONATOR Miruna Nitescu, Florin Constantinescu, Al.-G. Gheorghe, Lucia Dumitriu

ANALYSIS AND SIMULATION OF AN ELECTRIC DRIVING INVERTER USED IN ELECTRIC URBAN TRACTION Ioana-Gabriela Sîrbu, Petre-Marian Nicolae

TESTS, RECORDINGS AND NUMERICAL PROCESSINGS OF DISTORTING AND UNBALANCED OPERATING REGIMES OF A SYNCHRONOUS GENERATORS
Petre-Marian Nicolae, Ileana-Diana Nicola

REGARDING TO THE CONTROLLED CLOSING OF THE CIRCUIT BREAKERS Maricel Adam, Adrian Baraboi, Catalin Pancu

ARTIFICIAL INTELLIGENCE CONTROLLED SYSTEM FOR THE MONITORING OF ELECTROMAGNETIC POLLUTION Catalin Pancu, Adrian Baraboi, Maricel Adam

SEMI-PASSIVE VIBRATION CONTROL: PRINCIPLE AND APPLICATIONS Daniel Guyomar, Kaori Yuse, Thomas Monnier, Lionel Petit, Elie Lefeuvre, Claude Richard

THE MODERNIZATION OF A STAND FOR MEASUREMENT AND TEST OF RESISTIVE TENSILE STAMPS Eugen Raduca, Iosif Debelka, Cosmin Campean, Mihaela Raduca

OPTIMISATION INFORMATISEE DE LA CONCEPTION DES TRANSFORMATEURS DE HAUTE FREQUENCE Auguste Ndtoungou, Paul Makanga, Igor Sabatin

EMC AND RELATED PROBLEMS IN THE IMPLEMENTATION OF URBAN TRAFFIC ANAGEMENT AND PUBLIC TRANSPORT MANAGEMENT SYSTEMS Marius Minea, Angel Ciprian Cormos

CONSTRICTION RESISTANCE OF BANDWIDTH REDUCTION Grigore A. Cividjian

METHODS AND CIRCUITS FOR POWER ARC TEST IN AC CURRENT OF THE SIMPLE AND DOUBLE INSULATOR SETS WITH COMPOSITE MATERIAL FOR AERIAL ELECTRIC LINES
George Curcanu, Constantin Iancu, Corneliu Chiciu

DYNAMIC ELECTROMECHANIC CHARACTERISTIC OF DC ELECTROMAGNETS WITH NULL STARTING FLUX Eugen Hnatiuc, Adrian Plesca, Bogdan Hnatiuc

DYNAMIC ELECTROMECHANIC CHARACTERISTIC OF DC ELECTROMAGNETS WITH NON-NULL STARTING FLUX Eugen Hnatiuc, Adrian Plesca, Bogdan Hnatiuc

APPROXIMATING EXPRESSIONS FOR THE INDUCTANCE AND THE FORCE OF A CYLINDRICAL COIL WITH STRAIGHT FERROMAGNETIC CORE Zaharinka Gergova, Ivan Yatchev, Alexander Alexandrov

TRANSFORMER DIAGNOSIS CORRELATING DGA WITH PD MEASUREMENT RESULTS
Dorin Popa

ESTABLISHING THE EQUIVALENT OVER-TEMPERATURE IN POWER TRANSFORMERS
Adrian Munteanu, Elena Helerea, Catalin Mihai

MONITORING OF THE SPECIFIC PARAMETERS OF AN ELECTRIC SYSTEM, BY USING A MICROCONTROLLER EXPERIMENTAL SYSTEM Virginia Ivanov, Sergiu Ivanov

L’ARCHITECTURE ELECTRIQUE ET ELECTRONIQUE Maria Cristina Cristescu

CONCERNING THE RESULTS OF NON-DESTRUCTIVE TESTING OF SOME ALUMINIUM ALLOYS
Maria Brojboiu, Marin Popa

AN OPTIMIZED DESIGN SOLUTION OF AN OLEO-PNEUMATICALLY ACTUATION DEVICE FOR HIGH POWER CIRCUIT BREAKERS Eleonor Stoenescu, Maria Brojboiu

A STUDY ABOUT THE AC SWITCHING REGIME OF A SINGLE-PHASED TRANSFORMER CHARACTERIZED BY A NON-LINEAR MAGNETIZATION CURVE WITH PIECEWISE-LINEARISED HYSTERESIS CYCLE  Cristian-George Constantinescu, Constantin Strimbu

BASIC TOPOLOGIES OF DIRECT PWM AC CHOPPERS Dan Floricau, Mariana Dumitrescu, Ioan Popa, Sergiu Ivanov

A SIMPLE METHOD OF TORQUE RIPPLE REDUCTION FOR DIRECT TORQUE CONTROL OF PWM INVERTER-FED INDUCTION MACHINE DRIVES Sanda Victorinne Paturca, Aurelian Sarca, Mircea Covrig

A CASE STUDY REGARDING THE IMPLEMENTATION OF AN ELECTRIC BICYCLE USING RELUCTANT MOTORS Viorel Trifa, Calin Marginean, Liviu Zarnescu

ASPECTS REGARDING THE ENERGY EFFICIENCY AND HARMONIC SPECTRUM AT DRILLING WELLS Ana Iacob, Marian Duta, Sebastian Popescu

POSITIONING SYSTEMS FOR SOLAR PANELS PLACED IN ISOLATED AREAS
Laurentiu Alboteanu, Gheorghe Manolea, Florin Ravigan

MODELLING OF THREE LEVELS CONVERTERS USED IN ELECTRIC TRACTION
Daniel Cristian Cismaru, Doru Adrian Nicola

THERMAL ANALYSIS OF A PERMANENT-MAGNET TUBULAR MACHINE
Fabrizio Marignetti, Ioana-Cornelia Vese, Roberto Di Stefano, Mircea M. Radulescu

ELECTRONIC CONTROLLED CAPACITOR FOR SINGLE PHASE INDUCTION MOTOR
Radu Campeanu, Constantin Suciu, Aurel Campeanu

THE MODEL OF PERMANENT MAGNET SYNCHRONOUS MACHINES
Eleonora Darie

THE DYNAMIC CONTROL OF A SWITCHED RELUCTANCE DRIVE USING FUZZY LOGIC
Eleonora Darie, Garibald Popescu

VOLT-HERTZ CONTROL OF THE SYNCHRONOUS MOTOR WITH RAMP EXCITING VOLTAGE
Csaba Szabo, Maria Imecs, Ioan Iov Incze

MAGNETIC FIELD IN THE AIRGAP OF THE THREE-PHASE SYNCHRONOUS GENERATOR CONNECTED ON RECTIFIERS Corneliu Nica, Monica Adela Enache

NUMERICAL SIMULATION OF A PRESSURE WAVE INTERACTING WITH A PROTECTION FILTER DURING AN INTERNAL ARC FAULT IN A MEDIUM VOLTAGE CELL David Rochette, Stephane Clain, Francois Gentils, Pascal Andre, William Bussiere

RADIATIVE HEAT TRANSFER IN AXISYMMETRIC SYSTEMS OF NON-ISOTHERMAL SURFACES
Bogdan M. Diaconu, Cristinel Racoceanu

STUDY OF POLLUTANTS DISPERSION RESULTING FROM LIGNITE COMBUSTION IN POWER GENERATION Cristinel Racoceanu, Bogdan M. Diaconu

INTELLIGENT FAULTS INTERRUPTION Florin Munteanu

PROTECTION OF OVERHEAD LINES WITH METAL-OXIDE ARRESTERS Mircea Gusa, Marcel Istrate

SIMULATION SUR ORDINATEUR DES LIGNES DE MOYENNE TENSION DE LA REGION EST DE LA SOCIETE SEEG Paul Makanga, Auguste Ndtoungou, Serge Moctar, Igor Sabatin

NEW APPROACH IN THE SYSTEMS AND ELECTRICAL EQUIPMENT MONITORING AND DIAGNOSTIC Adrian Baraboi, Maricel Adam, Catalin Pancu

A SINGLE-PHASE DUMP LOAD FOR STAND-ALONE GENERATING UNITS WITH INDUCTION GENERATOR Catalin Petrea Ion, Ioan Serban, Corneliu Marinescu

COMPARATIVE ANALYSIS BETWEEN CHP PLANTS AND SEPARATE PRODUCTION
Liviu Ruieneanu

LA MONITORISATION DES DECHARGES PARTIELLES EN CABLES ELECTRIQUES ET ACCESSOIRES : METHODES ET GESTION Mircea-Emilian Ardeleanu

ABOUT MATHCAD MODELING OF BUCK PWM AC REGULATORS Liliana Miron, Mihai Miron, Cristian George Constantinescu

TWO GENERATORS MICRO-GRID BASED ON RES Luminita Barote, Ioan Serban, Catalin Petrea Ion, Corneliu Marinescu, Marius Georgescu

STUDY OF COGENERATION SYSTEMS IN A CHEMICAL INDUSTRY Radu-Cristian Dinu, Ion Mircea

RADIANT ENERGY DENSITY CALCULATION ON A INCLINED SURFACE Cristian Bratu, Felicia Ivan

THE FUNCTION PSS ADDITIONAL SIGNAL INFLUENCE OF THE RAT STRUCTURE FOR A BETTER STATISTICAL AND TRANSITIONAL STABILITY CONCERNING UP-DATING THE IRON GATES HYDRO GENERATORS Sabin Mischie, Ion Mircea, Mihai Mircea

APPLICATION OF PARITY MISCMATHCES IN DETECTION OF BAD DATA FOR POWER SYSTEM STATE ESTIMATION  Leonardo Geo Manescu

DETECTION OF GROSS ERROR BY MODIFIED RELAXATION STATE ESTIMATION IN POWER SYSTEM Leonardo Geo Manescu

ASPECTS CONCERNANT LA LIMITATION DES EFFETS DE LA CIRCULATION DES HARMONIQUES DANS LES RESEAUX DE DISTRIBUTION Silvia-Maria Diga, Denisa Rusinaru, Andrei Cosmin Grigorescu

MODELISATION DU FONCTIONNEMENT EN PARALLELE A DEUX OU PLUSIEURS POMPES CENTRIFUGES IDENTIQUES OU DIFFERENTES Daniela Popescu, Adelaida Duinea, Cristian Bratu

DEVELOPPEMENT D’UN BANC D’EESAIS POUR TESTER DES FUSIBLES AUTOMOBILES
Alina Nicoleta Veliscu

THE VARIATION OF THE UNSIMMETRY FACTORS IN THE LOW VOLTAGE POWER SUPLIES IN SINUSOIDAL REGIME Cornel Toader, Petru Postolache, Nicolae Golovanov, Radu Florin Porumb, Mihai Tisu

THE SIMPLIFIED CALCULUS OF THE FLAT PLATE SOLAR COLLECTOR Andrei Stefan Jercan

DATA ACQUISITION AND CONTROL SOFTWARE FOR THE EDUCATIONAL KIT FESTO (LEVEL AND TEMPERATURE CONTROL) Gabriela Canureci, Camelia Maican, Matei Vinatoru

SAFETY MONITORING SYSTEMS OF DANGEROUS ENVIRONMENTS FOR THE IMPROVEMENT OF WORK SAFETY LEVEL Mihnea Balteanu

THE NUMERICAL SIMULATION OF THE CULTURE MEDIUM FOR THE PLEUROTUS GENUS MUSHROOMS Gheorghe Manolea, Marius Popescu, Cãtãlin Nedelcuþ, Laurentiu Alboteanu

THREE DIMENSIONAL NUMERICAL SOLUTION FOR IMPEDANCE VOLTAGE OF POWER MULTI-WINDING AUTOTRANSFORMER Alin Dolan, Grigore A. Cividjian, Ivan Yatchev, Gheorghe Calin, Dorin Popa

MODELE NUMERIQUE ELECTROTHERMIQUE POUR L’OPTIMISATION DES CONTACTS DEMONTABLES DE FORTS COURANTS Ioan C. Popa, Ioan I. Cautil, Dan Floricau

MODE-S POSITIONAL DATA ERROR ANALYSIS FROM THE POINT OF VIEW OF AIR TRAFFIC CONTROL Stefan Luzica, Petr Svoboda, Pavel Grecman

PROPULSION SYSTEMS FOR MICRO AERIAL VEHICLES Adrian Coman, Mircea Boscoianu, Corneliu Axente

COMPLEX ROTATION SPEED CONTROL SYSTEM FOR TWO SHAFTS JET ENGINES
Alexandru Nicolae Tudosie

DC-LINK CONTROL-LOOP DESIGN OF A SYNCHRONOUS GENERATOR WITH ELECTRONIC LOAD Jenica Ileana Corcau, Pompiliu Constantinache

CONTROL SYSTEM BY AIR BLEED FLAPS FOR SUPERSONIC AIR INTAKES
Alexandru Nicolae Tudosie

AIRCRAFT’S LONGITUDINAL MOTION COMMAND EFFICIENCY CONTROL LAWS
Romulus Lungu

ETUDE SUR LA VITESSE CRITIQUE DE L’ANNULATION DE LA PORTANCE DE L’EMPENNAGE HORIZONTAL DES AERONEFS EN CONFIGURATION CANARD Octavian Preotu

AN ALGORITHM FOR SENSOR DATA FUSION FOR UNMANNED MINI AERIAL VEHICLES
Corneliu Axente, Adrian Coman, Mircea Boscoianu, Nicolae Jula

PARAMETERS ESTIMATION OF THE AIRCRAFT’S LONGITUDINAL AND LATERAL MOVE
Mihai Lungu

ETUDE NUMERIQUE D’UN LIMITEUR DE COURANT DE DEFAUT SUPRACONDUCTEUR INDUCTIF Florian Stefanescu

SUPERCONDUCTIVITY IN MgB Georgeta Alecu, Andreea Cosac, Stefania Zamfir

PHYSICAL MODEL OF SUPERCONDUCTING FAULT CURRENT LIMITER-DESIGN AND TEST
Aristofan Teisanu, Florian Stefãnescu, Ioan Puflea

INDUCTIVE MEASURING DEVICE FOR CRITICAL CURRENT DENSITY Aristofan Teisanu, Georgeta Alecu

TRANSIENT PARAMETERS OF A COIL WITH A SCREENED IRON CORE BY A SUPERCONDUCTOR TUBE Constantin Mantea, Ioan Puflea

THE MICROSTRUCTURE IN THE CRYOGENIC TREATED BEARING STEELS
Vasile Bulancea

EXPERIMENTAL PLANT FOR 18O SEPARATION BY CRYOGENIC OXYGEN DISTILLATION
Floarea Pop, Iuliana Piciorea, Mariana Iliescu, Mihai Culcer, Cornelia Croitoru, Ioan Stefanescu

HELIUM IN MATERIALS USE IN HYDROGEN CRYOGENIC DISTILLATION
Sebastian Brad, Mihai Vijulie, Alin Lazãr, Sorin Gherghinescu

INDUCTION MOTORS DYNAMIC REGIMES ANALYSIS METHODS – Aurel-Ionuţ CHIRILĂ, Ioan-Dragoş DEACONU, Constantin GHIŢĂ, Ion Daniel ILINA

VIRTUAL MEASUREMENT SYSTEM FOR DETERMINATION AND STUDY OF THE PER-PHASE EQUIVALENT CIRCUIT PARAMETERS – Eugen SUBŢIRELU

SENSORLESS SMALL PERMANENT MAGNET BRUSHLESS MOTOR DRIVES – Katalin AGOSTON

A STUDY OF THE TECHNICAL PERFORMANCES OF THE EXECUTION ELEMENT ASYNCHRONOUS MOTOR – FREQUENCY INDIRECT STATIC CONVERTER – Ioan RUJA, Teodor GAVRIŞ

PARAMETERS AND CHARACTERISTICS DETERMINATION OF COMOUNDED D.C. MOTOR – Ion SOBOR, Ilie NUCĂ, Valeriu RÂMBU

STUDY AND DESIGN OF A SPECIAL RELUCTANT MOTOR FOR DIRECT ELECTRICAL DRIVE OF A BICYCLE– Viorel TRIFA, Calin RUSU, Calin MARGINEAN

THE INFLUENCE OF SWITCHING CURRENT TRANSIENTS IN SMALL POWER INVERTER FED INDUCTION MOTORS – Nicuşor TOTOR

TORQUE PULSATIONS MINIMIZATION AT STARTING OF A SMALL POWER INDUCTION MOTOR BY USING A PASIVE FILTER – Nicuşor TOTOR

MONITORING AND DIAGNOSTIC SYSTEM FOR HIGH VOLTAGE CIRCUIT BREAKERS – Maricel ADAM, Adrian BARABOI, Catalin PANCU

THE ANALYTICAL EVALUATION OF THE CONNECTING TIME FOR THE AC ELECTROMAGNETIC COMMUTATION APPARATUSES WITH CONTACTS – Radu BURLICA, Eugen HNATIUC, Bogdan HNATIUC

THE AC SINGLE-PHASE ELECTROMAGNETS’ OPERATING SUPPLIED WITH DOUBLE RECTIFIED VOLTAGE– Eugen HNATIUC, Adrian PLEŞCA, Bogdan HNATIUC

HARDWARE/SOFTWARE STRUCTURE FOR THE CONTACT RESISTANCE ESTIMATION IN THE CASE OF AN ELEMENTARY CONTACT – Cătălin PANCU, Adrian BARABOI, Maricel ADAM

VIRTUAL INSTRUMENT FOR GENERATION OF DISTURBANCES WHICH AFFECT POWER QUALITY – Gabriel GĂŞPĂRESC

MODELING AND OPTIMIZATION OF HIGH CURRENTS DISMOUNTABLE CONTACTS – Ioan POPA, Ioan CAUŢIL, Dan FLORICĂU, Florin OCOLEANU

THEORETICAL CONTRIBUTIONS ABOUT THE EVALUATION OF ACTIVE FORCES AT ELECTROMAGNETIC DEVICES WITH AXIAL FORCES – Ilas Ionela, Leonte Petru, Pleşca Adrian

POWER SYSTEMS TRANSIENTS AT THE 380 KV UNLOADED LINE SWITCHING – Petre TUSALIU, Dan-Costin TUSALIU, Aydogan OZDEMIR,  Virginia TUSALIU

COMPLETE SOLUTIONS FOR FAULT CONDITIONS ANALYSIS WITHIN THE HIGH VOLTAGE GRID OF THE S.T. CRAIOVA – Maria BROJBOIU, Virginia IVANOV

METHOD OF BOUNDARY INTEGRAL EQUATIONS IN THE INVESTIGATION OF TRANSIENT HEAT SPREAD IN A CONDUCTOR – Boris DRAGANOV, Gleb DRĂGAN

AN IMPROVED SPEED AND FLUX-LINKAGE ESTIMATION STRUCTURE FOR INDUCTION MACHINES’ SENSORLESS CONTROL SYSTEMS – Iulian ŢOPA, Laurenţiu DIACONU, Adrian DĂNILĂ

A FIELD ORIENTED BASED METHOD FOR DTC OF INDUCTION MOTOR – Iulian ŢOPA, Laurenţiu DIACONU, Adrian DĂNILĂ

ASPECTS OF VARIABLE SPEED CONTROL OF ASYNCHRONOUS MOTORS THROUGH THE TECHNIQUE OF SPACE VECTOR MODULATION – Alexandru SĂVULESCU

THE ANALYSIS AND THE SIMULATION OF THE SVM GENERATOR USED FOR THE CONTROL OF THE ELECTRIC DRIVES WITH ASYNCHRONOUS MOTORS – Alexandru SĂVULESCU

COMPARISON BETWEEN LUENBERGER OBSERVER AND GOPINATH OBSERVER USED IN ELECTRICAL DRIVES SYSTEMS WITHOUT SENSORLESS – Marius – Aurelian PICIU

THE OPERATION OPTIMIZATION OF AN INDUCTION MOTOR FED BY A PWM INVERTER – Ana BOBĂIANU

ASSOCIATE MODEL OF AN INDUCTION MOTOR FED BY A PWM INVERTER – Ana BOBĂIANU

MONITORING AND DIAGNOSTIC SYSTEM FOR HIGH VOLTAGE CIRCUIT BREAKERS – Maricel ADAM, Adrian BARABOI, Catalin PANCU

THE ANALYTICAL EVALUATION OF THE CONNECTING TIME FOR THE AC ELECTROMAGNETIC COMMUTATION APPARATUSES WITH CONTACTS – Radu BURLICA, Eugen HNATIUC, Bogdan HNATIUC

THE AC SINGLE-PHASE ELECTROMAGNETS’ OPERATING SUPPLIED WITH DOUBLE RECTIFIED VOLTAGE– Eugen HNATIUC, Adrian PLEŞCA, Bogdan HNATIUC

HARDWARE/SOFTWARE STRUCTURE FOR THE CONTACT RESISTANCE ESTIMATION IN THE CASE OF AN ELEMENTARY CONTACT – Cătălin PANCU, Adrian BARABOI, Maricel ADAM

VIRTUAL INSTRUMENT FOR GENERATION OF DISTURBANCES WHICH AFFECT POWER QUALITY – Gabriel GĂŞPĂRESC

MODELING AND OPTIMIZATION OF HIGH CURRENTS DISMOUNTABLE CONTACTS – Ioan POPA, Ioan CAUŢIL, Dan FLORICĂU, Florin OCOLEANU

THEORETICAL CONTRIBUTIONS ABOUT THE EVALUATION OF ACTIVE FORCES AT ELECTROMAGNETIC DEVICES WITH AXIAL FORCES – Ilas Ionela, Leonte Petru, Pleşca Adrian

POWER SYSTEMS TRANSIENTS AT THE 380 KV UNLOADED LINE SWITCHING – Petre TUSALIU, Dan-Costin TUSALIU, Aydogan OZDEMIR,  Virginia TUSALIU

COMPLETE SOLUTIONS FOR FAULT CONDITIONS ANALYSIS WITHIN THE HIGH VOLTAGE GRID OF THE S.T. CRAIOVA – Maria BROJBOIU, Virginia IVANOV

METHOD OF BOUNDARY INTEGRAL EQUATIONS IN THE INVESTIGATION OF TRANSIENT HEAT SPREAD IN A CONDUCTOR – Boris DRAGANOV, Gleb DRĂGAN

FUEL FLOW RATE CONTROLLER WITH RESPECT TO THE COMPRESSOR’S PRESSURE RATIO – Alexandru Nicolae TUDOSIE

TURBO-JET ENGINE’S ROTATION SPEED CONTROL SYSTEM WITH FUEL FLOW RATE INJECTION CONTROLLER – Alexandru Nicolae TUDOSIE

SIMULATING THE OPERATION OF THE FLAX AND HEMP RETTING AND DRYING EQUIPMENT USING THE SIMULINK/MATLAB SOFTAWARE – Liliana  INDRIE, Sabina GHERGHEL,  Ioan ALMĂŞAN

ON – LINE PARAMETRIC IDENTIFICATION AND DISCRETE OPTIMAL COMMAND OF FLYGHT OBJECTS –Romulus LUNGU,  Mihai LUNGU

OPTIMAL CONTROL OF THE ROCKET’S LATERAL DEVIATION IN RAPPORT WITH EQUAL SIGNAL LINE –Romulus LUNGU,  Mihai LUNGU

CONSIDERATIONS ON THE STABILITY OF NONLINEAR SYSTEMS. PART. I: INCREMENTAL INPUT DESCRIBING FUNCTIONS – Mihaela CLEJU

CONSIDERATIONS ON THE STABILITY OF NONLINEAR SYSTEMS. PART II: JUMP RESONANCE PHENOMENA – Mihaela CLEJU

ON THE STABILITY OF SYSTEMS WITH SATURATION AND MULTIPLE DELAY IN COMMAND AND MULTIPLE DELAY IN STATE – Marcel Nicola

ON THE STABILITY OF SYSTEMS WITH SATURATION AND DISTRIBUTED DELAY IN COMMAND AND DISTRIBUTED DELAY IN STATE – Marcel Nicola

SDRE TECHNIQUE, METODOLOGY FOR DIRECT SYNTHESIS OF NONLINEAR FEEDBACK CONTROLLERS FOR D.C. SERIES MOTOR – Mihaela Doina ZAMFIR

GRAPHIC INTERFACES FOR AUTOMATION OF HORTICULTURAL PRODUCTS CULTURE AREAS –

Florin RAVIGAN, Laurenţiu ALBOTEANU, Cătălin NEDELCUŢ, Gheorghe MANOLEA

APPLICATION  DU  FORMALISME  RESEAUX  DE  PETRI  POUR  LA MODELISATION DE SYSTEMES HYBRIDES – Mircea Adrian DRIGHICIU

A TUNING ALGORITHM OF DIGITAL CONTROLLERS TO THE OBJECTS’ MODELS WITH INERTIA AND TIME DELAY – Bartolomeu IZVOREANU, Irina COJUHARI

CONTRIBUTION THROUGH LABVIEW SIMULAION TO A DOMOTIC HOUSE AUTOMATION –

Constantin OPREA, Alexandru SEREGHI, Cistian BARZ, Olivian CHIVER

A GENERAL APPROACH TO THE DECOMPOSITION OF DYNAMIC PROGRAMMING BY PROGRAMMING FOR NONLINEAR CONTROL SYSTEMS – Victoria BOGHANASTJUK, Nikolae KOBILIATZKY, Calin MARIN, Eugen CATLABUGA, Irina COJUHARI

MODELISATION DE L’ASSERVISSEMENT DE POSITION POUR L’INSTALATION DE LEVAGE –

Boteanu NICULAE, Gavrilă MARIN, Ravigan FLORIN

DISTRICT HEATING SUBSTATIONS WATER TEMPERATURE CONTROL BASED ON SOFT COMPUTING TECHNOLOGY – Lucian MASTACAN, Iosif OLAH, Cătălin Constantin DOSOFTEI

CONTROL OF THE DISTRIBUTING ELEMENTS PROVIDED ELECTRIC HEATING  SYSTEM –

Gheorghe MANOLEA, Alexandru NOVAC

PLANT EXPERIMENTAL IDENTIFICATION USING VIRTUAL INSTRUMENTATION – Iosif OLAH, N.St. HULEA, L. MASTACAN,  O.C. VORNICU

MOBILE ROBOT CONTROL IN OBSTACLES AVOIDANCE TASKS BY MEANS OF A MOTOROLA-BASED HARDWARE PLATFORM – Danut IRIMIA, Ciprian STEFAN, Marian POBORONIUC, Mihai LUIUZ, Claudiu ROMAN

ANALYSE DES CIRCUITS ÉLECTRIQUES NON- LINÉAIRES EN RÉGIME TRANSITOIRE PAR LA MÉTHODE DES INTERVALLES CONSECUTIFS À CORRECTION – Arhip POTÂNG, Mihail CHIORSAC, Ghenadie TERTEA

STEADY STATE MAGNETIC FIELD COMPUTATION USING THE SYMBOLIC METHODS – Gheorghe GAVRILĂ, Florin ENACHE, Emil CAZACU

STUDY OF THE UNIFORM MAGNETIC FIELD DOMAINS (3D) IN THE CASE OF THE HELMHOLTZ COILS –Gheorghe GAVRILĂ, Florin ENACHE, Emil CAZACU

A NEW STEADY-STATE ANALYSIS METHOD FOR NONLINEAR CIRCUITS DRIVEN BY MULTI-TONE SIGNALS – Lucia DUMITRIU, Mihai IORDACHE

TECHNOLOGIES TO IMPROVE HIGH FREQUENCY CHARACTERISTICS OF INTEGRATED EMI FILTERS –Adina RACASAN, Calin MUNTEANU, Vasile TOPA, Claudia RACASAN, Oana ANTONESCU

NUMERICAL METHOD FOR A MERIDIAN PLANE OF SYMMETRY OF AN ELECTROSTATIC MODEL – Micu Dan, Micu D. Dan, Andrei Ceclan,  Emil Simion

USAGE OF NUMERICAL METHODS FOR ELECTROMAGNETIC SHIELDS OPTIMIZATION – Ionuţ P. NICA, Valeriu Gh. DAVID, Ştefan URSACHE

CONTRIBUTION REGARDING THE DRIVING CURRENTS DISTRIBUTION IN SOLID MEDIUMS USING FERROFLUID DISPLAY DEVICE – Daniela MINESCU, Mihaela-Brindusa NEGRU

ASPECTS REGARDING THE NUMERICAL SIMULATION OF INDUCTION HEATING PROCESS IN PIECES OF CYLINDRICAL SHAPES – Mihaela NOVAC, Ovidiu NOVAC, Radu SEBESAN

NUMERICAL SIMULATIONS OF AN ELECTROMAGNETIC PERTURBATION ON A CABLE TRAY – Bacancios IOANA, Munteanu CALIN

A SYSTEM OF MONITORING THE PRODUCTS FROM A REFRIGERATING WAREHOUSE USING RFID TECHNOLOGIES – Cristina HURJUI, Cristina Elena TURCU, Adrian GRAUR

PARTICULARITIES OF THE MAGNETIC COMPASS  ADJUSTMENT  ON THE SCHOOL SHIP “MIRCEA

Neculai TATARU

RESONANCES AT THE ACCESS GATES OF A LINEAR AND NON-AUTONOMOUS TWO-PORT, SUPPLYING, IN HARMONIC STEADY-STATE, A NON-LINEAR, INERTIAL AND PASSIVE RECEIVER – Hugo ROSMAN

SYSTEME INSTITUTIONNEL DE MANAGEMENT DE LA QUALITE – Petru TODOS, Andrei CHICIUC, Jorj CIUMAC, Stela ŢICUL

JAVA APPLETS USED TO TEACH ELECTRONICS IN INTERACTIVE MODE – Mircea Ilie Mihaiu, Gheorghe Marian

EDUCATION FOR ENGINEERING STUDENTS: THE CASE OF LOGIC – Horia F. Pop, Liana G.T. Pop

TRAINING OF PRACTICAL TEACHING CAPACITIES – Maria Ileana CARCEA, Costică NIŢUCĂ

GENERATOR DE PREZENTARI MULTIMEDIA PENTRU DIVERSE CATEGORII DE PRODUSE – Gheorghe MARIAN, Nicolae Iulian ENESCU, Eugen DUMITRASCU

IG CONTROLLED BY A PWM-VSI SUPPLYING STATIC AND DYNAMIC LOADS – Catalin Petrea ION, Corneliu MARINESCU

AN ADAPTIVE CURRENT MODE FUZZY LOGIC CONTROLLER FOR DC-TO-DC CONVERTERS – Jenica Ileana CORCĂU, Pompiliu CONSTANTINACHE

COATED ELECTRODE MANUAL-METAL ARC WELDING WITH HIGH FREQUENCY WELDING INVERTER POWER SOURCES – Gabriel Nicolae POPA, Iosif POPA, Sorin Ioan DEACONU

INSTANTANEOUS COMPLEX APPARENT POWER THEORY AND APPARENT POWER DEFINITIONS – CASE STUDIES – Alexandru BITOLEANU, Mihaela POPESCU, Mihaita LINCA

A METHOD TO CALCULATE POWER TRANSFER IN DIRECT AC-AC CONVERTER WITH SCR AND RESISTIVE-INDUCTIVE LOAD – Ecaterina-Liliana MIRON, C.G. Constantinescu, Marian PEARSICA, Constantin STRIMBU,  Mihai MIRON

LOSSES DISTRIBUTION IN THREE-LEVEL VOLTAGE SOURCE INVERTERS – Dan FLORICAU, Guillaume GATEAU, Elena FLORICAU,Ioan POPA, Dan OLARU, Sergiu IVANOV

ELECTRONIC CONTACTOR WITH TIRISTORS FOR AN OPTIMAL CONNECTION OF A THREE PHASE TRANSFORMER TO STAR NET THE SECOND BEING OPEN – Ladislau AUGUSTINOV, Florin BERINDE, Ion PIROI

THE PERFORMANCE ANALYSIS OF THE SYNCHRONOUS RECTIFIERS – Mircea Ilie MIHAIU,Carlos Alberto VALDERRAMA

SIMULATION TOOL FOR POWER QUALITY ANALYSIS – Mihaela POPESCU,  A. BITOLEANU,  M. DOBRICEANU, M. LINCA

DETECTION ET LOCALISATION DES DEFAUTS DANS LES CONVERTISSEURS STATIQUES – Nazih MOUBAYED

BIOMASS UTILIZATION FOR FUEL SAVING AND MINIMIZE ENVIRONMENT IMPACT IN A PAPER MILL –Aneta HAZI, Gheorghe HAZI

COMPACT CONDENSING SYSTEM WITH HEAT EXCHANGE SURFACE AND WATER INJECTION FOR SMALL SCALE COMBINED CYCLE MOBILE UNITS – Dan-Teodor BĂLĂNESCU, Vlad Mario HOMUTESCU, Marius Vasile ATANASIU

PERFORMANCE COMPARISON OF A LAB – VRB – PEMFC FOR A WIND STAND ALONE SYSTEM – Luminiţa BAROTE, Ioan SERBAN

MASTER DEGREE PROGRAM „ENVIRONMENT AND CLEAN TECHNOLOGIES” – Andrei CHICIUC, Petru TODOS, Oxana SAMOTEEVA

DESIGN AND MANUFACTURE OF SOME BLADES FOR AEOLIAN – M.D.CAZACU, S. NICOLAIE, S. A. MITREA, I. GOLOVEI

ENVIRONMENT QUALITY MONITORING, ESSENTIAL REQUIREMENT IN THE ENVIRONMENT MANAGEMENT – Georgeta ALECU, Andreea COSAC

MODELING THE SEDIMENTATION PROCESS IN A WASTEWATER TREATMENT SYSTEM – Gabriela Dana PETROPOL-ŞERB, Ion PETROPOL-ŞERB

ACOUSTIC EXHAUST FILTRATION SYSTEM USED IN COMBINED HEAT POWER PLANTS FOR THE SCHEMES OF WET DUST COLLETION – Mihai LUPU, Alexandru MATRONITKII

EFFICIENCY ANALYSIS OF A REAL SYSTEM, FOR ENERGY PRODUCTION FROM RENEWABLE SOURCES –Mihaela Florentina MATEI, Petruta MIHAI, Claudia POPESCU, Mihai Octavian POPESCU

L’ENERGIE EOLIENNE AU LIBAN : BILAN ANNUEL, RENDEMENT ET RENTABILITE – Georges GERGES, Ali El-ALI, Nazih MOUBAYED, Rachid OUTBIB

CONTRIBUTIONS REGARDING THE PREDICTIVE RELIABILITY ANALYSIS OF THE HYDRO MECHANICAL EQIUPMENTS FROM HYDRO POWER PLANTS – Cristina HORA, Mircea VEREŞ

SOME CONSIDERATIONS ABOUT APPLICATION OF MODERN DIAGNOSIS TO COGENERATION PLANTS –GRIGORE ROXANA

THE WAVE PROPAGATION ANALYSIS PRODUCED BY PARTIAL DISCHARGES IN HIGH VOLTAGE CABLE IN DIRECT AND RETURN TIME – Mihai TÎRŞU

CORRELATION BETWEEN RADIAL VIBRATIONS AND EXTERNAL RADIAL MAGNETIC FIELD IN INDUCTION MACHINES. APPLICATION TO ELECTRICAL FAULT DIAGNOSIS – Delphine THAILLY, Raphaël ROMARY, Remus PUSCA, Jean-François BRUDNY

FAULT LOCALIZATION IN CABLES AND ACCESSORIES BY OFF-LINE METHODS – Mircea – Emilian ARDELEANU

MODEL FOR LIFETIME ESTIMATION AT HYDRO GENERATOR STATOR WINDING INSULATION – Mihaela RĂDUCA  ,  Eugen RĂDUCA , Iancu TĂTUCU

ESTIMATION OF THE DEGRADATION POWER TRANSFORMERS INSULATION  USING THE CHARGE CURVES – Laura RAB,  Adrian MUNTEANU

THE PROBLEM OF THE RELIABILITY  OF THE   ELECTRIC POWER   EQUIPMENT – F. Erchan,  Iurie Vîlcov

PRINCIPIILE DE ELABORARE AL ALGORITMELOR DE OPTIMIZARE AL FIABILITĂŢII SISTEMELOR DE DISTRIBUŢIE ŞI ALIMENTARE CU ENERGIE ELECTRICĂ A CONSUMATORILOR – Iriisa LUPVSOR

ANALIZA PROCESELOR TRANZITORII ÎN SISTEMELE DE DISTRIBUŢIE ĂI INFLUENŢA LOR ASUPRA FIABILITĂŢII – V.POPESCU

THE DYNAMIC RELATIONS INSIDE THE STRESS-STRENGTH VECTOR  A MODELS FOR THE RELIABILITY PREDICTION – Ciprian NEMEŞ

AGING EQUIPMENT PREDICTION USING THE WEAR PROCESS – Ciprian NEMEŞ, Florin MUNTEANU, Dumitru IVAS

MODELISATION DU FONCTIONEMENT D’UN LIMITEUR DE COURANT DE DEFAUT SUPRACONDUCTEUR INDUCTIF – Florian ŞTEFĂNESCU

ELECTROMECHANICAL MOVING OF CONDUCTING LIQUIDS WITH THERMAL IN HOMOGENEITIES IN AN ELECTRIC FIELD – Tudor GROSU, Tudor SAJIN

REVIEW ON WORLDWIDE DEVELOPMENTS IN THE DOMAIN OF MICROMOTORS TECHNOLOGIES Marius-Andrei NICOLAESCU, Aurel CAMPEANU

A MODEL FOR SHIELDING EFFECTIVENESS EVALUATION – Petre OGRUTAN, Lia – Elena ACIU, Dan BIDIAN

ON THE ELECTROMAGNETIC WAVE PROPAGATION IN A BI-ISOTROPIC CHIRAL MEDIUM – Constantin SARMASANU, Valeriu DAVID

CONSIDERATIONS  SUR LE DIMENSIONNEMENT DES PLAQUES COMPOSITES STRATIFIEES A MATRICE POLYMERE – Sonia DEGERATU, Nicu George BIZDOACA,  Gabriela TONT, Vasile DEGERATU

COMPARATIVE ANALYSIS OF THE EFFICIENCY OF PLANAR DIELECTRIC-CONDUCTOR OPEN WAVEGUIDES – Camelia PETRESCU