Browsing by Study direction "E08 - Elektros inžinerija / Electrical engineering"
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Antrosios pakopos studijų Automatikos programos magistro baigiamasis darbas Pavadinimas Elektromobilio pavaros valdymo sistemos tyrimas Autorius Gytis Vyšniauskas Vadovas Dainius Udris
(2021)Baigiamajame magistro darbe modeliuojama ir testuojama elektromobilio pavaros valdymo sistema bei įvertinama automobilio išilginė dinamika. Tiriama, kokią įtaką valdymo procesams ir elektros varikliui daro skirtingi aplinkos ... -
Belaidžių energijos perdavimo sistemų tyrimas
(2022)Baigiamajame magistro darbe analizuojamas belaidis energijos perdavimas. Pagrindinės darbo dalys: literatūros apžvalga, teoriniai bei eksperimentiniai tyrimai. Taikyta tyrimo metodika apžvelgiama teorinių bei eksperimentinių ... -
Bepakopio galios faktoriaus valdymo ELGAMA sistemoms kūrimas ir tyrimas
(2021)Baigiamajame magistro darbe nagrinėjami galios faktoriaus valdymo įrenginai. Projektuojamas statinis reaktyviosios galios kompensatorius simetrinei bei nesimetrinei tinklo apkrovai. Naudojant kompiuterinio simuliavimo ... -
Converter state-space model estimation using dynamic mode decomposition
(2022 IEEE 7th international energy conference (ENERGYCON), 9-12 May 2022, Riga, Latvia: conference proceedings, 2022)Power electronic reliability is an important topic for modern industrial electronics. Each component of a power converter has its lifespan, which is affected by many factors like ambient temperature, humidity, load, and ... -
Design of a functional observer for fuzzy delayed systems with unknown input
(2022 IEEE Open Conference of Electrical, Electronic and Information Sciences (eStream), 21 April 2022, Vilnius, Lithuania / organized by: Vilnius Gediminas Technical University, 2022)This study focuses on the design of observers with unknown inputs for delayed systems represented by Takagi-Sugeno (T-S) in continuous time. When the unknown inputs are included in the state and output equations, and the ... -
Diagnostics of pre-fault conditions using the impact of electrolytic capacitor aging on power supply dynamics
(2023 IEEE 10th Jubilee Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE), 27-29 April 2023, 2023)The modern power electronics is indistinctive to questions on a reliability. The electrolytic capacitors despites their excessive properties in terms of affordability, power density to volume and weight, remains an element ... -
Digital twin as a virtual sensor for wind turbine applications
(Energies: Magnetic Field Computations and Energy Efficiency Studies in Electrical Machines, 2023)Digital twins (DTs) have been implemented in various applications, including wind turbine generators (WTGs). They are used to create virtual replicas of physical turbines, which can be used to monitor and optimize their ... -
Digital twin of wind generator for modelling various turbine characteristics
(2023 International Conference on Electrical Drives and Power Electronics, EDPE 2023 - Proceedings, 25-27 September 2023, The High Tatras, Slovakia, 2023)This article describes the digital twin of the wind generator. The model of the turbine provides a valuable tool for monitoring, controlling, and predicting the wind generator’s behavior. This type of algorithm allows for ... -
Fault tolerant control of a grid-connected microgrid with high penetration of renewable energy
(ICEMS 2021 - 2021 24th International Conference on Electrical Machines and Systems: 2021 24th International Conference on Electrical Machines and Systems (ICEMS) Oct 31-Nov 3, 2021 | HICO, Gyeongju, Korea, 2021)Utilization of more renewable energy in electric grid help to reduce the dependency on fossil fuel and environmental impact. However, the intermittency nature of wind and solar renewable energy resources renders challenges ... -
Fault-tolerant control of a grid-connected bipolar DC microgrid with high penetration of intermittent renewable energy
(IECON Proceedings (Industrial Electronics Conference): IECON 2022 - 48th Annual Conference of the IEEE Industrial Electronics Society, 17-20 October 2022, Brussels, Belgium, 2022)Bipolar DC grids are gaining great attention in modern power systems due to their superiority over Unipolar DC grids and AC grids. Existing studies on DC microgrid operations and controls individually investigate voltage ... -
Forecasting and Investigation of Transmission Line Sag and Tension
(2022)Perhaps, most people passing by the transmission lines even do not suspect that the sag of the lines that seem so common and inconsiderable, is one of the most important parameters carefully calculated during the design ... -
Improved fault classification and localization in power transmission networks using VAE-Generated synthetic data and machine learning algorithms
(Machines: Special issue: Machine learning and artificial intelligence in machinery condition monitoring, 2023)The reliable operation of power transmission networks depends on the timely detection and localization of faults. Fault classification and localization in electricity transmission networks can be challenging because of the ... -
Integrated multiport DC-DC and multilevel converters for multiple renewable energy source integration /
(IEEE Access., 2023.)This research introduces an innovative converter system which has been developed to seamlessly incorporate multiple sources of renewable energy into both DC and AC grids. The integration of multiple energy sources is made ... -
Investigating the quality of photovoltaic panels by means of an electroluminescence control system
(Open readings 2023: 66th international conference for students of physics and natural sciences, April 18-21, 2023, Vilnius, Lithuania: annual abstract book / editors: M. Keršys, Š. Mickus, 2023) -
Išmaniojo pastato valdymo sistemos tyrimas
(2021)Baigiamajame magistro darbe nagrinėjama išmaniojo pastato valdymo sistema. Apžvelgiami tradiciniai, PID pagrįsti, pastato valdymo sistemos veikimo principai. Nagrinėjama išmaniųjų PVS sistemų kūrimą sudarančios sąlygos ir ... -
Kintamosios įtampos reguliatoriaus, paremto „buck-boost“ keitikliu, tyrimas
(2023)Šiame magistro darbe nagrinėjamas kintamosios srovės įtampos reguliatoriaus, pagrįsto kintamosios srovės keitiklio "buck-boost" topologija, sukūrimas, siekiant įveikti kintamosios srovės įtampos reguliavimo metodų trūkumus ... -
Model of fuzzy controlled system with PD-I and PI-D controllers for six-phase electric drive
(2022 IEEE Open Conference of Electrical, Electronic and Information Sciences (eStream), 21 April 2022, Vilnius, Lithuania / organized by: Vilnius Gediminas Technical University, 2022)The paper deals with an enhanced MATLAB Simulink model of a fuzzy-controlled system for a symmetrical six-phase motor supplied with modified PD-I and PI-D controllers and analyzes its performance and transients at special ... -
Modelling and comparison PID fuzzy controllers for six-phase drive
(2023 IEEE Open Conference of Electrical, Electronic and Information Sciences (eStream), 27 April 2023, Vilnius, Lithuania / organized by Vilnius Gediminas Technical University, 2023)The paper presents a MATLAB Simulink model of a symmetrical six-phase drive controlled by the six-phase frequency converter with PID fuzzy controllers. Six-phase motor model is elaborated in a rotating d−q reference frame. ... -
Precizinės pjezoelektrinės pavaros tyrimas
(2023)Baigiamajame magistro darbe nagrinėjama precizinė pjezopavara. Pagrindinės darbo dalys: literatūros apžvalga, pjezopavaros, valdymo metodai, eksperimentiniai tyrimai. Taikyta eksperimentinio tyrimo metodika apžvelgiama, ... -
Preliminary analysis of bearing current faults for predictive maintenance
(2023 IEEE International Electric Machines and Drives Conference, IEMDC 2023, 15-18 May 2023, San Francisco, CA, USA, 2023)Bearings faults, one of the most common mechanical failures in the electrical machine, have been the diagnostic interest for a long time. The questions related to bearing currents have become an important issue due to a ...