A5067992312- Sensorless Control of Electric Motors
- Electric Motor Design and Analysis
- Microgrid Control and Optimization
- Multilevel Inverters and Converters
- Electric Power Systems and Control
- Advanced DC-DC Converters
- Magnetic Bearings and Levitation Dynamics
- Smart Grid Security and Resilience
- Smart Grid Energy Management
- Control Systems in Engineering
- Iterative Learning Control Systems
- Advanced Battery Technologies Research
- Elevator Systems and Control
- Induction Heating and Inverter Technology
- Power Quality and Harmonics
- Electric Vehicles and Infrastructure
- Electric and Hybrid Vehicle Technologies
- Hybrid Renewable Energy Systems
- Advanced Control Systems Design
- Fuel Cells and Related Materials
- Industrial Automation and Control Systems
- Power System Reliability and Maintenance
- Belt Conveyor Systems Engineering
- Optimal Power Flow Distribution
- Power Transformer Diagnostics and Insulation
"Dunarea de Jos" University of Galati
2015-2025
Universitatea Națională de Știință și Tehnologie Politehnica București
2021
Master's College
2013
Polytechnic University of Turin
2007
This work contributes to both Romania’s and the European Union’s energy policies by highlighting research results obtained within Dunarea de Jos University of Galati, but also through technological transfer this knowledge industry. In order improve power quality nonlinear loads connected electrical grid, a three-phase shunt active filter prototype based on Harmonic Component Separation Method with Low-Pass Filter was used. The is at Point Common Coupling compensate for individual or even all...
The mixing process is a multivariable and intrinsically non-linear plant. Mathematical modelling of the color has been taken into consideration in order to design an adequate control (PI controllers) assure zero steady state, fast disturbance rejection. comparisons nonlinear mathematical model linear one have done. implemented by using STEP7 Programming Software for Siemens SIMATIC Programmable Logic Controller (PLC). entire Matlab-Simulink environment. view maintaining appropriate level...
This paper propose a model predictive control (MPC) of three phase Permanent Magnet Synchronous Motor (PMSM). The ARX model, used to compute the signal, is obtained using an online identification procedure. MPC then compared with conventional approach, i.e. Proportional Integral (PI) speed controller. effectiveness approach shown in simulation results done Simulink.
The three phase induction machine is the most used one in electrical drives. For drives with frequent starting, stopping or reversing regimes consumed energy important and overall efficiency of system decreases significantly. Nowadays worldwide manufactures power converters production area proposed as an alternative solution regenerative authors propose modular drive squirrel cage machine. During braking regime recovered delivered into AC grid sources. topology formed by series active...
In this paper the topology of grid-connected fuel cell power system and performances front-end three-phase inverter are presented. The proposed has been designed benefits small plastic film dc link capacitor thanks to balance control entire conditioning system, thus replacing bulk electrolytic capacitor. By using load feedforward input reference current is changed with a better transient response obtained. increase in dc-ac makes it possible reduce size DC by maintaining systems' stability....
The paper presents the motion control of a single-beam gantry crane trolley. Nonlinear mathematical model deduction gantry-crane, followed by linearization gantry-crane trolley in order to integrate linear state-feedback controller using Ackermann formula have been shown. In obtain zero-steady state error an adequate pre-filter has designed. simulation results demonstrates that system can successfully be handled type, combined with designed reference filter zero steady error.
The objectives of the steel manufacturers are to improve their productivity and optimize process parameters maximum efficiency quality. In industry, one or more client motors often arranged follow velocity master motor. speed difference between these will affect tension product. Hence, synchronized control important research topics in strip manufacturing process. This paper proposes a novel multi-input-multi-output optimal system for synchronism dual motor system. strategy has view...
This paper shows the topology of grid-connected green power system and performances front-end threephase inverter by applying an advanced state feedback control. The proposed benefits a common DCAC which injects generated into grid. control structure is vector type, in synchronous reference frame, it uses balance concept. solution presented this adds supplementary to beside conventional control: designed input filter assures zero steady error adequate component added for dynamic rejection...
The dynamic development of photovoltaic systems in the world and Poland is mainly related to drop prices installation components. Currently, electricity from photovoltaics one cheapest renewable energy sources. basis for effective generation is, first all, failure-free operation system over a long period operation, up 30 years. paper presents results study low-cost distributed monitoring diagnosis installations (SmartPV), capable assessing operating parameters individual panels. devices were...
The energy during braking, for the single motor or multimotor (with common DC bus) drive systems, can be regenerated into AC power line used by other systems. proposed regenerative system consists of a series active rectifier and four quadrants DC-DC converter connected to machine. quality is an important issue. control voltage source based on minor current loop in synchronous rotating-frame with feedforward load component added at reference, completed dc cascaded manner. Using rotating...
The pandemic period was caused by COVID-19 and it has been an unprecedented event in the last 100 years of human history. Regarding universities, major changes have occurred both online method education as well patterns their electrical consumption, respective students’ teachers’ residential consumption. focus this research is to conduct assess a comparative analysis universities’ consumption during pre- periods. Polynomial regression used model four Romanian universities 2019–2021. Also,...
In addition to combat missions, military ships often participate in search-and-rescue missions or interception of with refugees migrants. The communication systems and modes work that may be used during these will accordance the International Convention for Safety Life at Sea (SOLAS). This paper aims demonstrate by theoretical methods (analytical numerical) noise stability using analog modulation high-noise conditions, characteristic marine environment. employing amplitude (AM), frequency...
Objectively, electricity is the most important current power source and, especially, of future. Electricity consumption in universities worldwide achieved by installations and equipment both laboratories, classrooms, applications, sports, rooms administrative staff, campus. Depending on specializations, each university has a specific footprint consumption. During pandemic 2020, world introduced several measures to limit spread Covid virus, including online education academia. Thus, terms...
The motor drives are the major consumers of electrical energy. There two main ways for energy saving: to use advanced techniques optimal control and adapt a solution existing drive systems in order increase efficiency. In find an answer this challenge, paper very cheap efficient is proposed. proposed system obtained steps: firstly, based on energetic criteria used obtain speed response; secondly, response as reference conventional system. electric combines performances with features control,...