• Synthesis of the Control Algorithm to the Models of Objects with Inertia First Order and Second Order Astatism 

  IZVOREANU, Bartolomeu; COJUHARI, Irina; FIODOROV, Ion; SECRIERU, Adrian; MORARU, Dumitru; POTLOG, Mihail (IEEE, 2021)

  In this paper it is proposed to synthesize the control algorithm for the models of objects with inertia and second order astatism, which are described the dynamics of various technical objects and technological processes. ...
• Synthesis of the PID Control Algorithm for the Models of Objects with Second Order Astatism 

  IZVOREANU, Bartolomeu; COJUHARI, Irina; FIODOROV, Ion; SECRIERU, Adrian; MORARU, Dumitru; POTLOG, Mihail (IEEE, 2021)

  In the paper is highlighted the industrial objects as cars, spacecraft, telescopes, plotters, lasers, elevators, etc., which are described by the mathematical model with double astatism. These models of control objects ...
• On-line Evaluation in Graphic Engineering Disciplines 

  DINTU, Sergiu; SULETEA, Angela (IEEE, 2021)

  The transition to on-line learning required rigors not only in the use of new technologies, but also in the organization of courses in schools and universities. It was necessary to revise the content of the course, as well ...
• Aerodynamic Efficiency Numerical Estimation of 1 kW horizontal axis wind turbine rotor 

  GUTU, Marin; ODAINAI, Valeriu; MALCOCI, Iulian; TRIFAN, Nicolae (IEEE, 2021)

  The paper presents an estimated analysis of the aerodynamic performance of a wind rotor with a horizontal axis. It is a design stage of a low power wind turbine, ≈ 1 kW. Several airfoils are considered to indicate high ...
• Vertical Axis Wind Turbines: Open Airfoils and Plastic Blades 

  RABEI, Ivan (IEEE, 2021)

  The paper addresses two aspects of vertical axis wind turbines. In the first part, aerodynamic aspects were addressed. Two types of blade segments were tested in the wind tunnel, both defined by the NACA 0018 airfoil. One ...
• IoT based on Membrane Computing Models 

  ABABII, Victor; SUDACEVSCHI, Viorica; MUNTEANU, Silvia; BOROZAN, Olesea; NISTIRIUC, Ana; LASCO, Victor (IEEE, 2021)

  In the given paper it is approached a method of the application of the Membrane Computing models in the design of IoT systems with Collective Intelligence properties. The topology of the IoT system is presented as a Mesh ...
• Islanded Microgrids control by using Grid Former and Synthetic Slack Bus concept - A preliminary analysis 

  SANDULEAC, Mihai; EREMIA, Mircea; TOMA, Lucian; DAMIAN, Catalin; GAVRILAS, Mihai; GRIGORAS, Gheorghe; STRATAN, Ion; GROPA, Victor (IEEE, 2021)

  Microgrids are entities which will become more frequent in areas with high penetration of renewable energy sources. Therefore, there is an increasing need for reliable tools appropriate for load-flow and dynamic analysis, ...
• Optimal PMU Placement and Algorithms’ Development of Accelerated Calculations of State Estimation Performance in Power Systems 

  MURDID, Ecaterina; STRATAN, Ion (IEEE, 2021)

  Reducing the cost of implementing phasor measurement units (PMUs) can be achieved by determining the minimum number of devices needed to provide the electrical network observability. This article describes the optimal PMU ...
• The Analysis of the Sensitivity of the Active Power Losses in Relation to the Bus Powers 

  ROTARI, Iulian; ROTARU, Adrian (IEEE, 2021)

  In the context of the depletion of energy resources based on the fossil fuels, the transition to the renewable energy sources is inevitable. In order to minimize the power and the energy losses, it is technically and ...
• Increasing System Flexibility through a Combination of Pumped-Hydro and Battery-Storage Systems. An Overview of Possible Developments 

  EFREMOV, Cristina; LEU, Vasile; SANDULEAC, Mihai (IEEE, 2021)

  The task of CO 2 neutrality in 2050 with high targets for 2030 ask for a large deployment of Renewable Energy Sources. However, the volatility of RES asks also for a high flexibility in the system, to be provided with a ...
• Optimal Capacity and Feasibility of Energy Storage Systems for Power Plants Using Variable Renewable Energy Sources 

  BRAGA, Dumitru (IEEE, 2021)

  Nowadays, the decarbonization of the global and national economies by shifting from using fossil energy sources to using renewable energy sources represents an upward trend. The greatest potential has wind and photovoltaic ...
• Study of the Circulation of Heat Transfer Fluid in the Permanent Magnets Thermo-Generator 

  MANGOS, Octavian (IEEE, 2021)

  The variation of the heat transfer fluid temperature in the permanent magnet thermogenerator was studied. SOLIDWORKS Flow Simulation software is used for the simulations and the dependence of the liquid temperature in the ...
• Simulation of Filters of Six Symmetrical Components of Currents (Voltages) of Controlled Self-Compensating Power Lines 

  KIORSAK, Michael; TURTURICA, Natalya (IEEE, 2021)

  In the paper, simulation of filters of six symmetrical components of currents (voltages) of controlled self-compensating power lines (CSCL) are done. The theoretical base and the advantages of using six symmetrical components ...
• Development of Vector Control Structures for Traction Systems with Six-Phase Asynchronous Motors 

  TARLAJANU, Alexandru (IEEE, 2021)

  Research and development of traction systems with multiphase motors, including six-phase motors becomes an efficient way to improve the performance of urban electric passenger vehicles. For this purpose, the basic components ...
• Acceptance Testing of the Six-Phase Asynchronous Machines 

  TODOS, Petru; TERTEA, Ghenadie; NUCA, Ilie; CAZAC, Vadim; BURDUNIUC, Marcel (IEEE, 2021)

  This paper addresses to the issue of program organization and testing attempts to accept with 6 phases machines, a less researched field. According to the standards, several tests, in particular those of experimental ...
• Anaerobic - aerobic WWTP for a non-alcoholic liquid products factory 

  MOLDOVAN, Artiom; NUCA, Ilie; MILICI, Dan (IEEE, 2021)

  In this paper, the problem was the realization of the control philosophy and implementation of programmable distributed electromechanical systems for wastewater treatment processes. According to the legislation, most ...
• A Hybrid Charging System Design for Electric Vehicles with Autonomous Power Source 

  NUCA, Ilie; CAZAC, Vadim; BURDUNIUC, Marcel; MOLDOVAN, Artiom; NIȚUCĂ, Costică; CHIRIAC, Gabriel; GABOR, Georgel (IEEE, 2021)

  The paper focuses on the development of hybrid battery charging systems for autonomous electric passenger vehicles. Aspects of elaboration and design methodology of the battery charging station are approached both from the ...
• Harmonic Decomposition and Power Quality Analysis of a Six-Phase Induction Motor Traction Drive with Fast Fourier Transform 

  NUCA, Iurie; KOSTIC, Dusan; NICOLAE, Petre-Marian; NUCA, Ilie; CAZAC, Vadim; BURDUNIUC, Marcel (IEEE, 2021)

  This paper presents an analysis of harmonic decomposition and power quality analysis of a six-phase asynchronous motor drive model designed for traction systems, by the Fast Fourier Transform tool. The six-phase asynchronous ...
• Development of Powertrain System Model for Urban Passenger Vehicle Simulations 

  NUCA, Ilie; TURCANU, Adrian; CAZAC, Vadim (IEEE, 2021)

  The paper refers to the powertrain systems in urban electric passenger vehicles. The purpose of the work is to develop a model of a powertrain system of an electric passenger vehicle. The objective of this paper is to ...
• 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 ...

View more