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Browsing Conferința Internațională SIELMEN - Sisteme Electromecanice și Energetice by Issue Date

Browsing Conferința Internațională SIELMEN - Sisteme Electromecanice și Energetice by Issue Date

Now showing items 21-40 of 171

Calitatea educaţiei prin prizma nevoilor clienţilor

TARLAJANU, Alexandru (Editura ALMA, 2015)

Această lucrare reflectă aşa semnificaţii ale calităţii educaţiei ca „conformitatea cu cerinţele” şi „adecvarea la utilizare” care trebuie să fie integrare organic şi să se completeze una pe alta. Odată ce „adecvarea la ...
Information technologies used in electric public vehicles

NUCA, Ilie; NUCA, Iurie; MOTROI, Alexandr; EŞANU, Vitalie (Editura ALMA, 2015)

This paper is a summary of the use of information technologies in urban passenger electric vehicles, largely based on the authors' experience in developing and implementing traction systems for trams and trolleybuses. ...
Mathematical modeling of the asynchronous motors for underwater vehicle drives

NUCA, Ilie; TODOS, Petru; JALBĂ, Alexandru (Editura ALMA, 2015)

This paper approaches the mathematical modeling of the submersible asynchronous motor filled with MASUM dielectric liquid. These motors are used to drive submarine robots, which are guided through cables from the surface ...
Considerarea inflaţiei în evaluarea proiectelor de eficienţă energetică şi energii regenerabile (abordare macroeconomică)

ARION, Valentin; BUGAIAN, Larisa; HLUSOV, Viorica; NEGURĂ, Călin (Editura ALMA, 2015)

În lucrare sunt prezentate modalităţile de integrare, precum şi de excludere a fenomenului inflaţie în calculele şi analiza economico-financiară ce privesc proiectele de eficienţă energetică şi surse de energii regenerabile. ...
Adjusting of the control system of asynchronous motor drive for wire drawing machine and winding mechanism

CAZAC, Vadim; NUCA, Ilie (Editura ALMA, 2015)

In this paper the drive system with asynchronous motor and vector control for Wire Drawing Machine and Winding Mechanism is analyzed. It describes how to use a frequency converter for controlling of the wire drawing machine, ...
Instrumente de elearning utilizate la predarea disciplinei grafică inginerească

ŞULETEA, Angela; DÎNTU, Sergiu (Editura ALMA, 2015)

One of the biggest benefits of virtual education is the ability to easily explain complex processes and principles using animations and interactive simulation environments. In order to create these didactic materials a ...
Instruirea inginerilor și instrumentele virtuale

VÎRLAN, Petru (Editura ALMA, 2015)

In această lucrare se prezintă o metodă modernă de instruire a inginerilor privind practica, mai concret lucrările de laborator. In prima parte se face argumentarea utilizării instrumentelor virtuale și clasificarea ...
Wind power. Legislative and financial framework. Possibilities of exploitation in Republic of Moldova

RABEI, Ivan; (Editura ALMA, 2015)

Wind energy can be converted into a usable form of energy using wind turbines to produce electricity, wind mills for producing mechanical power, wind pumps for pumping water, or sails for moving the ships. Currently, on ...
Latvian Electrical Power System Stability’s Analysis Taking into Account New Development Strategy Until 2025

ZICMANE, Inga; BERZINA, Kristina; SOBOLEVSKIS, Aleksejs; KOVALENKO, Sergejs (Institute of Electrical and Electronics Engineers, 2017)

Energy is one of the sectors directly affecting the economic growth and forming a significant part of overall expenses in several industry branches, especially in manufacturing. The development of the energy sector requires ...
Self-Assessment as a Key Criterion for Increase of Quality of Higher Education in Modern Conditions

BERZINA, Kristina; ZICMANE, Inga; KUCKOVSKIS, Jevgenijs (Institute of Electrical and Electronics Engineers, 2017)

The process of globalization poses new challenges for the government in the field of education system regulation. The growing importance of the need for a qualitative assessment of the state of the educational process ...
Elevator Drives. Present Trends and Perspectives

BLANUŠA, Branko; KNEŽEVIĆ, Bojan; ERCEG, Bojan; LEKIĆ, Đorđe; MRŠIĆ, Predrag (Institute of Electrical and Electronics Engineers, 2017)

In this paper some of the problems related to electrical drives in modern elevators are presented. These are the modeling of jerk and the definition of the motion trajectory, power savings, efficiency optimization and ...
Hybrid Petri Nets a Framework for Hybrid Systems Modeling

DRIGHICIU, Mircea Adrian (Institute of Electrical and Electronics Engineers, 2017)

The purpose of this paper is to present the achievement of the Hybrid Petri Nets techniques used for modeling and behavioral analysis of a class of hybrid systems. In our sense, a dynamic hybrid system contains at least ...
Design of a Sliding Mode Controller to Eliminate the Limit Cycle in Chaotic Van der Pol System in Comparison with State Feedback Controllers

AHMAD, Shahzad; YASIN, Abdul Rehman; PLESCA, Adrian; YOUNIS, Usman (Institute of Electrical and Electronics Engineers, 2017)

In this paper sliding mode controller is designed in comparison with the linear state space feedback controllers namely the pole placement controller and linear quadratic regulator to eliminate the chaotic limit cycle ...
Camera Calibration and Tracking for Gimballed Like Eye Structure in Robots with Hardware Implementation

YASIN, Abdul Rehman; PLESCA, Adrian; ASHRAF, Muhamamd; AHMAD, Shahzad; NASIRULLAH, Rudania; NASEER, Huma; ADAM, Muhammad (Institute of Electrical and Electronics Engineers, 2017)

Confront location based on camera tracking is an active research area as it offers numerous applications, particularly for security-based surveillance, robot vision and visual guidance. This paper presents a camera calibration ...
Automatic Temperature Control in 3D Printing of the Polymer Details

COJUHARI, Irina; FIODOROV, Ion; IZVOREANU, Bartolomeu; MORARU, Dumitru; BOTNARU, Sorin (Institute of Electrical and Electronics Engineers, 2017)

In this paper it is designed the automatic system for formation the small pieces from polymer, based on the principle of thermoplastic extrusion. The system has a goal to form pieces with a maximum volume of 20535 mm3. ...
Simultaneous Estimation of Speed and Rotor Resistance in the Sensorless Vector Control Systems with Induction Motors

STOICUTA, Olimpiu; PANA, Teodor; MOLNAR, Robin; DEACONU, Daniel (Institute of Electrical and Electronics Engineers, 2017)

This paper presents a new method of simultaneous estimation of speed and rotor resistance of an induction motor, from a sensorless vector control system. The simultaneous estimation of the speed, rotor flux and of rotor ...
Wavelet Transform and Neural Network Based Control Strategy for Hybrid Energy System

BACIU, Alina-Georgiana; LIVINT, Gheorghe (Institute of Electrical and Electronics Engineers, 2017)

This paper presents a control strategy for a hybrid electric vehicle with two energy sources on board: battery and ultracapacitor. For this configuration it is proposed a new method for prediction of power demand time ...
Time Delay Evaluation in Printed Circuit Boards based on Timed Hard Petri Nets

SUDACEVSCHI, Viorica; ABABII, Victor; CALUGARI, Dmitri; BORDIAN, Dimitrie (Institute of Electrical and Electronics Engineers, 2017)

This paper presents a synthesis method for delay time evaluation in the printed circuit boards based on Timed Hard Petri Nets. For the specification and modeling of the delay time evaluation system, Timed Synchronous Petri ...
Robust control of MPPT of a PV cell

DARAB, Cosmin; TURCU, Antoniu; STEFANESCU, S.; BOTEZAN, A.; PICA, Constantin; PAVEL, Sorin (Institute of Electrical and Electronics Engineers, 2017)

This work presents a robust control approach for Maximum Power Point Tracking (MPPT) of a standalone solar Photo Voltaic (PV) system, in order to boost its efficiency. For testing the algorithm, it was considered an 80W ...
Novel Method for Control of non linear system based on Negative Acceleration

BENMILOUD, Tarek (Institute of Electrical and Electronics Engineers, 2017)

In this paper, a novel method of control of non linear system is presented. The new concept describes a method to obtain a stabilized control of non linear system. This method shows that by imposing a negative value for ...

Browsing Conferința Internațională SIELMEN - Sisteme Electromecanice și Energetice by Issue Date

Browsing Conferința Internațională SIELMEN - Sisteme Electromecanice și Energetice by Issue Date

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