Blar i AURA på forfatter "Pomarnacki, Raimondas"
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Cascaded Multilevel Inverter-Based Asymmetric Static Synchronous Compensator of Reactive Power
Šapurov, Martynas; Baskys, Algirdas; Pomarnacki, Raimondas; Serackis, Artūras; Jankauskas, Mindaugas; Huynh, Van Khang; Bleizgys, V.; Dervinis, A.; Bielskis, E.; Paulikas, S.; Paulauskas, N.; Gursnys, D. (Peer reviewed; Journal article, 2022)The topology of the static synchronous compensator of reactive power for a low-voltage three-phase utility grid capable of asymmetric reactive power compensation in grid phases has been proposed and analysed. It is implemented ... -
A Current Spectrum-Based Algorithm for Fault Detection of Electrical Machines Using Low-Power Data Acquisition Devices
Asad, Bilal; Raja, Hadi Ashraf; Vaimann, Toomas; Kallaste, Ants; Pomarnacki, Raimondas; Huynh, Khang (Peer reviewed; Journal article, 2023)An algorithm to improve the resolution of the frequency spectrum by detecting the number of complete cycles, removing any fractional components of the signal, signal discontinuities, and interpolating the signal for fault ... -
Digital Twin as a Virtual Sensor for Wind Turbine Applications
Ibrahim, Mahmoud; Rassõlkin, Anton; Vaimann, Toomas; Kallaste, Ants; Zakis, Janis; Huynh, Khang; Pomarnacki, Raimondas (Peer reviewed; Journal article, 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 ... -
Exploring the Limits of Early Predictive Maintenance in Wind Turbines Applying an Anomaly Detection Technique
Jankauskas, Mindaugas; Serackis, Artūras; Šapurov, Martynas; Pomarnacki, Raimondas; Baskys, Algirdas; Huynh, Khang; Vaimann, Toomas; Zakis, Janis (Peer reviewed; Journal article, 2023)The aim of the presented investigation is to explore the time gap between an anomaly appearance in continuously measured parameters of the device and a failure, related to the end of the remaining resource of the device-critical ... -
Improved Fault Classification and Localization in Power Transmission Networks Using VAE-Generated Synthetic Data and Machine Learning Algorithms
Khan, Muhammad Amir; Asad, Bilal; Vaimann, Toomas; Kallaste, Ants; Pomarnacki, Raimondas; Huynh, Khang (Peer reviewed; Journal article, 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
Jiya, Immanuel Ninma; Ali, Ahmed Mohamed Salem; Huynh, Khang; Pomarnacki, Raimondas (Peer reviewed; Journal article, 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 ... -
Power Line Monitoring through Data Integrity Analysis with Q-Learning Based Data Analysis Network
Maskeliūnas, Rytis; Pomarnacki, Raimondas; Huynh, Van Khang; Damaševičius, Robertas; Plonis, Darius (Peer reviewed; Journal article, 2022)To monitor and handle big data obtained from electrical, electronic, electro-mechanical, and other equipment linked to the power grid effectively and efficiently, it is important to monitor them continually to gather ...