@article{MTMT:34789151,
	title = {Jövőbeli kihívások meglévő rendszerek esetében. A környezeti tényezők változásának relevanciája az energiatermelésben},
	url = {https://m2.mtmt.hu/api/publication/34789151},
	author = {Simon, Csilla and Tóth, Zoltán},
	journal-iso = {ELEKTROTECHNIKA},
	journal = {ELEKTROTECHNIKA},
	volume = {117},
	unique-id = {34789151},
	issn = {0367-0708},
	year = {2024},
	pages = {18-20},
	orcid-numbers = {Simon, Csilla/0000-0001-7406-0784; Tóth, Zoltán/0000-0002-0429-0629}
}

@CONFERENCE{MTMT:34763420,
	title = {Fuzzy Based Control of Optimized Efficiency PV Array Power Production},
	url = {https://m2.mtmt.hu/api/publication/34763420},
	author = {Daoud, R.W. and Abdullah, Z.M. and Khudhur, K.A. and Ali, Zaid and Ahmed, O.K. and Al-Khashab, Y.},
	booktitle = {2nd International Conference on Renewable Energy, ICRE 2022},
	doi = {10.1063/5.0182715},
	volume = {2885},
	unique-id = {34763420},
	abstract = {The array of solar panels consists of a group of cells linked together to take advantage of solar energy and convert it into electrical energy. Several factors may affect this matrix's functioning, leading to a lack of efficiency and cell damage. In this work, a control system is designed and represented over the solar cell array, monitoring it and making appropriate decisions at the right moment in a flexible and mechanical harmony. Also, determining the factors affecting the cell’s functioning individually while, on the matrix directly affects the system's efficiency, such as the voltage level produced by the cell the voltage level produced by the matrix, and the temperature. Through the extrapolation of these factors, the appropriate treatment is activated to make the value of this factor within the default level, wherefrom the treatments took cooling, changing the angle of inclination, and cleaning of the surface of the solar cell will be stable at a specific. The proposed control system forces the cells to work with consistent data that do not change with changing conditions. © 2024 American Institute of Physics Inc.. All rights reserved.},
	keywords = {Optimization; fuzzy logic; PV array; power increment},
	year = {2024}
}

@CONFERENCE{MTMT:34763418,
	title = {Impact of Shunt Active Power Filter SAPF on a Distribution Network: A Case Study},
	url = {https://m2.mtmt.hu/api/publication/34763418},
	author = {Abdulmajeed, Hasan and Kiss, Péter},
	booktitle = {2nd International Conference on Renewable Energy, ICRE 2022},
	doi = {10.1063/5.0181595},
	volume = {2885},
	unique-id = {34763418},
	abstract = {Harmonic distortion generated by nonlinear loads is one of the major power quality problems for the distribution system and the consumers, like poor power factor, device overheating, neutral overloading, and machine vibrations. The conventional harmonic mitigation method (Passive Filter) sustains a lot of tunning, resonance, and size drawbacks. Shunt Active Power Filter (SAPF) can use as a feasible alternative device to mitigate the current harmonic distortion. This paper investigates the mitigation performance of three-phase three-wire SAPF on the proposed distribution network model during nonlinear load changes conditions (dynamic load changes) when five scenarios representing different load variations have been applied to the network. Total Harmonic Distortion (THD), current, and power factor have been examined before and after these load changes and without and with SAPF in each network bus. The study considers the dynamic load induction machine that has been connected to the one feeder through a line-side converter when SAPF was able to reduce the THD% of the grid to 5.32, 5.1, and 5.52 for 20Nm, 40Nm, and 60 Nm dynamic applied torque, respectively. The SAPF, distribution network, loads, and line side converter models are simulated with varying scenarios in MATLAB Simulink. © 2024 American Institute of Physics Inc.. All rights reserved.},
	year = {2024}
}

@article{MTMT:34763138,
	title = {Control techniques of switched reluctance motors in electric vehicle applications: A review on torque ripple reduction strategies},
	url = {https://m2.mtmt.hu/api/publication/34763138},
	author = {Saleh, Ameer Lateef and Al-Amyal, Fahad and Számel, László},
	doi = {10.3934/electreng.2024005},
	journal-iso = {AIMS ELECTRON ELECTRIC ENGIN},
	journal = {AIMS ELECTRONICS AND ELECTRICAL ENGINEERING},
	volume = {8},
	unique-id = {34763138},
	abstract = {As electric vehicles (EVs) continue to acquire prominence in the transportation industry, improving the outcomes and efficiency of their propulsion systems is becoming increasingly critical. Switched Reluctance Motors (SRMs) have become a compelling option for EV applications due to their simplicity, magnet-free design, robustness, and cost-effectiveness, making them an attractive choice for the growing EV market. Despite all these features and compared to other electrical machines, SRMs suffer from some restrictions, such as torque ripple and audible noise generation, stemming from their markedly nonlinear characteristics, which affect their productivity and efficiency. Therefore, to address these problems, especially the torque ripple, it is crucial and challenging to enhance the performance of the SRM drive system. This paper proposed a comprehensive review of torque ripple minimization strategies of SRMs in EV applications. It covered a detailed overview and categorized and compared many strategies, including two general categories of torque ripple mitigation encompassing optimization design topologies and control strategy developments. Then, focused on control strategy improvements and divided them into torque and current control strategies, including the sub-sections. In addition, the research also provided an overview of SRM fundamental operations, converter topologies, and excitation angle approaches. Last, a comparison between each method in torque control and current control strategies was listed, including the adopted method, features, and drawbacks.},
	year = {2024},
	eissn = {2578-1588},
	pages = {104-145},
	orcid-numbers = {Számel, László/0000-0002-6393-7672}
}

@article{MTMT:34758408,
	title = {Monitoring of Stator Winding Insulation Degradation through Estimation of Stator Winding Temperature and Leakage Current},
	url = {https://m2.mtmt.hu/api/publication/34758408},
	author = {Számel, László and Oloo, Jackson},
	doi = {10.3390/machines12040220},
	journal-iso = {MACHINES},
	journal = {MACHINES},
	volume = {12},
	unique-id = {34758408},
	abstract = {Switched Reluctance Motors (SRMs), Permanent Magnet Synchronous Motors (PMSMs), and induction motors may experience failures due to insulation-related breakdowns. The SRM rotor is of a non-salient nature and made of solid steel material. There are no windings on the rotor. However, the stator is composed of windings that are intricately insulated from each other using materials such as enamel wire, polymer films, mica tapes, epoxy resin, varnishes, or insulating tapes. The dielectric strength of the insulation may fail over time due to several environmental factors and processes. Dielectric breakdown of the winding insulation can be caused by rapid switching of the winding current, the presence of contaminants, and thermal aging. For reliable and efficient operation of the SRMs and other electrical machines, it is necessary to take into account the physics of the winding insulation and perform appropriate diagnostics and estimations that can monitor the integrity of the insulation. This article presents the estimation problem using a Genetic Algorithm (GA)-optimized Random Forest Regressor. Empirical properties and measurable quantities in the historical data are utilized to derive temperature and leakage current estimation. The developed model is then combined with a moving average function to increase the accuracy of prediction of the stator winding temperature and leakage current. The performance of the model is compared with that of the Feedforward Neural Network and Long Short-Term Memory over the same winding temperature and leakage current historical data. The performance metrics are based on computation of the Mean Square Error and Mean Absolute Error.},
	year = {2024},
	eissn = {2075-1702},
	orcid-numbers = {Számel, László/0000-0002-6393-7672}
}

@CONFERENCE{MTMT:34754570,
	title = {SMC-PWM of a dynamic performance voltage restorer},
	url = {https://m2.mtmt.hu/api/publication/34754570},
	author = {Ali, Zaid and Raisz, Dávid},
	booktitle = {2nd International Conference on Renewable Energy, ICRE 2022},
	doi = {10.1063/5.0181558},
	unique-id = {34754570},
	year = {2024}
}

@article{MTMT:34753852,
	title = {Decarbonizing the high-rise office building: A life cycle carbon assessment to green building rating systems in a tropical country},
	url = {https://m2.mtmt.hu/api/publication/34753852},
	author = {Mulya, Kyle Sebastian and Ng, Wai Lam and Biró, Kinga and Ho, Wai Shin and Wong, Keng Yinn and Woon, Kok Sin},
	doi = {10.1016/j.buildenv.2024.111437},
	journal-iso = {BUILD ENVIRON},
	journal = {BUILDING AND ENVIRONMENT},
	volume = {255},
	unique-id = {34753852},
	issn = {0360-1323},
	abstract = {The construction sector contributes a considerable share of global carbon emissions, with high-rise buildings having high emission density. Green Building Rating System (GBRS) certifications aim to reduce building emissions and improve occupant comfort. Most studies focus on low-to-mid-rise buildings, neglecting GBRS’ impact on commercial high-rises. Studies on the feasibility of adapting international GBRS to local high-rise buildings from a life cycle perspective are also scarce in tropical countries. Hence, taking Malaysia as a case study, this research quantifies the embodied and operational carbon reduction of GreenRE (local) and LEED (international) certifications on a high-rise office building using Life Cycle Assessment, where various certification tiers and scenarios are analyzed. LEED Platinum comprises 25.1% embodied (EC) and 74.9% operational carbon (OC) emissions, whereas GreenRE Platinum is 13.4% and 86.6%, respectively. Combining EC and OC emissions, LEED scenarios achieve reductions up to 61.1% with high OC reduction targets, while GreenRE offers up to 28.7% reduction with more stringent EC requirements. The LEED Max scenario, obtaining all available credits, achieves the highest carbon reduction of 65.1%. Unlike GreenRE, which specifies reductions from individual building components, LEED lacks specific requirements for components like lighting or cooling, potentially resulting in uneven emission reduction. Unconventional designs incorporating building-integrated photovoltaics, radiant cooling slabs, and other green features reduce carbon emissions by 62.7%. Recommendations to improve GBRS criteria towards achieving low-carbon buildings include relaxing the energy-related credit limit for GreenRE to reduce emissions by an additional 12.5% and incentivizing stakeholders to reduce EC in both LEED and GreenRE. © 2024 Elsevier Ltd},
	year = {2024},
	eissn = {1873-684X},
	orcid-numbers = {Mulya, Kyle Sebastian/0009-0008-2139-0956; Wong, Keng Yinn/0000-0003-1261-5216; Woon, Kok Sin/0000-0003-0149-6661}
}

@article{MTMT:34741724,
	title = {A Method for Assessing the Degradation of PVC-Insulated Low-Voltage Distribution Cables Exposed to Short-Term Cyclic Aging},
	url = {https://m2.mtmt.hu/api/publication/34741724},
	author = {BAL, Semih and Tamus, Zoltán Ádám},
	doi = {10.3390/electronics13061085},
	journal = {ELECTRONICS (SWITZ)},
	volume = {13},
	unique-id = {34741724},
	abstract = {The distribution grid comprises cables with diverse constructions. The insulating material used in low-voltage (LV) distribution cables is predominantly PVC. Furthermore, the presence of cables with different structures in the grid poses challenges in detecting the aging of the cable network. Finding a universal and dependable condition-monitoring technique that can be applied to various types of cables is indeed a challenge. The diverse construction and materials used in different cables make it difficult to identify a single monitoring approach that can effectively assess the condition of all cables. To address this issue, this study aims to compare the thermal aging behavior of different LV distribution cables with various structures, i.e., one cable contains a PVC belting layer, while the other contains filler material. The growing adoption of distributed generation sources, electric vehicles, and new consumer appliances in low-voltage distribution grids can lead to short, repetitive overloads on the low-voltage cable network. Hence, these cable samples were exposed to short-term cyclic accelerated aging in the climate chamber at 110 °C. The cable’s overall behavior under thermal stress was evaluated through frequency and time domain electrical measurements (including tan δ and extended voltage response) and a mechanical measurement (Shore D). The tan δ was measured in the frequency range of 20 Hz–500 kHz by using the Wayne-Kerr impedance analyzer. The extended voltage response measurement was conducted using a C# application developed in-house specifically for laboratory measurements in the .NET environment. The study observed a strong correlation between the different measurement methods used, indicating that electrical methods have the potential to be adopted as a non-destructive condition-monitoring technique.},
	year = {2024},
	eissn = {2079-9292},
	orcid-numbers = {Tamus, Zoltán Ádám/0000-0002-0092-7565}
}

@article{MTMT:34735217,
	title = {A dinamikus távvezeték terhelhetőség pontosságának fejlesztése a széljelenségek vizsgálatával},
	url = {https://m2.mtmt.hu/api/publication/34735217},
	author = {Molnár, Áron and Rácz, Levente and Németh, Bálint},
	journal-iso = {ENERGIAGAZDÁLKODÁS},
	journal = {ENERGIAGAZDÁLKODÁS},
	volume = {65},
	unique-id = {34735217},
	issn = {0021-0757},
	year = {2024},
	pages = {81-85},
	orcid-numbers = {Rácz, Levente/0000-0003-4728-8905}
}

@article{MTMT:34727797,
	title = {Current Challenges in Operation, Performance, and Maintenance of Photovoltaic Panels},
	url = {https://m2.mtmt.hu/api/publication/34727797},
	author = {Orosz, Tamás and Rassõlkin, Anton and Arsénio, Pedro and Poór, Peter and Valme, Daniil and Sleisz, Ádám},
	doi = {10.3390/en17061306},
	journal-iso = {ENERGIES},
	journal = {ENERGIES},
	volume = {17},
	unique-id = {34727797},
	issn = {1996-1073},
	abstract = {The installed solar capacity in the European Union has expanded rapidly in recent years. The production of these plants is stochastic and highly dependent on the weather. However, many factors should be considered together to estimate the expected output according to the weather forecast so that these new PV plants can operate at maximum capacity. Plants must be operated in coordination with maintenance operations and considering actual energy market prices. Various methods have recently been developed in the literature, ranging from the most impactful artificial-intelligence-based generation estimation methods to various diagnostic and maintenance methods. Moreover, the optimal operational and maintenance strategy usually depends on market regulation, and there are many concerns related to the distribution system operator. This review article aims to summarize and illustrate the challenges of operating and maintaining solar power plants and the economic and technical importance of these problems.},
	year = {2024},
	eissn = {1996-1073},
	orcid-numbers = {Orosz, Tamás/0000-0002-8743-3989; Rassõlkin, Anton/0000-0001-8035-3970; Arsénio, Pedro/0000-0001-6951-0656; Poór, Peter/0000-0003-2684-0879; Valme, Daniil/0000-0003-4917-9892}
}