iosr-JEEE   Volume-20 ~ Issue-1 ~ Jan. – Feb. 2025

Abstract: This study is on hot spot temperature (HST) prediction models, including loss of life (LoL) of transformers, and uses the Asaba transmission substation as a case study. One year loading profile data was collected from the substation while Artificial Neural Network (ANN) and Bagging Regression (BR) algorithms were modeled using this data on MATLAB and Python to predict the HST for Day-Ahead (24-Hours), Week-Ahead (120-Hours), and Weekend (48-Hours). The results.....

Keywords: Transformer Hot Spot Temperature, Loss of Life, Artificial Neural Network, Bagging Regression, Asaba Transmission Substation, Thermal Stress, Insulation Life, Aging Factor

[1] Elel, J. Et Al., "Dynamic Thermal Model For Transformer Loss Of Life Prediction," Journal Of Electrical Engineering, Vol. 23, No. 3, Pp. 345–360, 2023.
[2] Rommel, F. Et Al., "Hot Spot Temperature Prediction Using Virtual Twins," Power Systems Research, Vol. 19, No. 2, Pp. 89–104, 2021.
[3] A. Arabul, I. Senol, (2018). Development Of A Hot-Spot Temperature Calculation Method For The Loss Of Life Estimation Of An Onan Distribution Transformer, Electr. Eng. Vol.100, Pages 1651-1659.
Http://Dx.Doi.Org/10.1007/S00202-017-0641-0.
[4] A. Bracale, P. Caramia, G. Carpinelli, P. De Falco, (2021), Smartrafo: A Probabilistic Predictive Tool For Dynamic Transformer Rating, Ieee Transformer Power Delivery Vol. 36, Issue No. 3, Pages 1619–1630, Https://Www.Researchgate.Net/Publication/343270520
[5] A. Bakst, A Modification Of The Computation Of The Multiple Correlation And Regression Coefficients By The Tolley And Ezekiel Method, In Journal Of Educational Psychology, Vol.22 Issue No. 8, Pages 629–635. Https://Doi.Org/10.1037/H0075404.

Abstract: Smart grids uses so many conventional infrastructures with advanced communications networks and information systems to enable intelligent monitoring and optimization. The most recent grid in Nigeria lacks delay in maintaining obsolete equipment and no sufficient power supply. A modern intelligent grid would make large-scale adoption of sustainable generation like solar, wind, and fuel cells. The problem associated with this research work is that smart.....

Keywords: Energy System Operation, Intelligent Energy Planning, Optimization, Renewable Energy, Simulation.

[1] Association, W.W.E. (2010). World Wind Energy Report 2010. World Wind Energy Association, Tech. Rep.
[2] Barbounis, T., Theocharis, J., Alexiadis, M. & Dokopoulos, P. (2006). Long-Term Wind Speed And Power Forecasting Using Local Recurrent Neural Network Models. Ieee Trans. Energy Convers., 21(1), 273–284.
[3] Batman, A., Bagriyanik, F. G., Aygen, Z. E. Gül, Ö. & Bagriyanik, M. (2012). A Feasibility Study Of Grid-Connected Photovoltaic Systems In Istanbul, Turkey. Renewable And Sustainable Energy Reviews, 16(8), 5678–5686.
[4] Bekele & Palm, B. (2010). Feasibility Study For A Standalone Solar-Wind-Based Hybrid Energy System For Application In Ethiopia. Applied Energy, 87(2), 487–495.
[5] Deshmukh, M.K. & Deshmukh, S.S. (2013). Modeling Of Hybrid Renewable Energy Systems. Renewable And Sustainable Energy Reviews, 12(1), 235–24..

Abstract: Protecting data acquisition devices in environments vulnerable to unwanted physical access, like academic institutions with nearly public access or in mobile applications, necessitating solutions in the field of security. To create a security framework, this study shows an electronic lock system for the DEWETRON DEWE3‑A4 that can be transferred to other grid powered devices. It integrates GPS satellite positioning with an average geofencing break alert of 20 s, GSM communication technologies, access authorization with an average time of 1.2 s and tampering detection with a delay of 0.29 s. The suggested solution improves the protection without compromising the device's operation or warranty, in contrast to conventional mechanical locks that provide restricted security features.....

Keywords: Electronic Lock System, System Design; System Security; RFID; DEWETRON.

[1].
K. Cyriac, Electronic Lock For High-End Data Acquisition Device. Master Thesis, Faculty Of Applied Natural Sciences And Industrial Engineering, Deggendorf Institute Of Technology, Deggendorf, Feb. 2024.
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A. Churi, A. Bhat, R. Mohite, And P. P. Churi, "E-Zip: An Electronic Lock For Secured System," In 2016 Ieee International Conference On Advances In Electronics, Communication And Computer Technology (Icaecct). Ieee, Dec. 2016.
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Raspberry Pi. (Accessed: 2024, Jul.) Raspberry Pi 4. Raspberrypi.Com. [Online]. Available:
Https://Www.Raspberrypi.Com/Products/Raspberry-Pi-4-Model-B/
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U. Farooq, M. Ul Hasan, M. Amar, A. Hanif, And M. Usman Asad, "Rfid Based Security And Access Control System," International Journal Of Engineering And Technology, Pp. 309–314, 2014.

Abstract: The main aim of this study is to determine the biomass energy production potential of Dumlupınar district and analyze its impact on greenhouse gas emissions. At the same time, it is aimed to contribute to making agriculture and livestock activities in rural areas more efficient. Key benefits of the study include increasing rural employment, increasing the income level in the region, expanding the use of technology, reducing migration rates and promoting healthy living conditions. These elements will contribute to the sustainable development of the region, both economically.....

Keywords: Electric Power Generation, Biogas, Carbon Emission

[1] Baum, R., Wajszczuk, K., Pepliński, B., & Wawrzynowicz......

Abstract: Modern photovoltaic (PV) system charge controllers commonly use Maximum Power Point Tracking (MPPT) technologies to advance specialist alteration effectiveness. The role of an MPPT regulator is to ensure that power drawn from the PV panels remains at its peak, even under changing weather conditions. This ensures optimal power transfer amid the planetary board and the connected consignment. Since temperature and solar irradiation levels fluctuate throughout the day, incorporating MPPT technology is essential for PV systems. As solar energy constitutes a significant portion of the global renewable energy market, advancements in MPPT methods.....

Keywords: Fuzzy Logic, Maximum power point tracking, PhotoVoltaic, Artificial Intelligence,

[1] Ahmed, J. and Salam, Z., 2015. An improved perturb and observe (P&O) maximum power point tracking (MPPT) algorithm for higher efficiency. Applied Energy, 150, pp.97-108.
[2] Arora, A. and Gaur, P., 2015. Comparison of ANN and ANFIS based MPPT Controller for grid connected PV systems. In 2015 Annual IEEE India Conference (INDICON) (pp. 1-6). IEEE.
[3] Eldahab, Y.E.A., Saad, N.H. and Zekry, A., 2014. Enhancing the maximum power point tracking techniques for photovoltaic systems. Renewable and Sustainable Energy Reviews, 40, pp.505-514.
[4] Elobaid, L.M., Abdelsalam, A.K. and Zakzouk, E.E., 2015. Artificial neural network-based photovoltaic maximum power point tracking techniques: a survey. IET Renewable Power Generation, 9(8), pp.1043-1063..
[5] Iqbal, A., Abu-Rub, H. and Ahmed, S.M., 2010, December. Adaptive neuro-fuzzy inference system based maximum power point tracking of a solar PV module. In 2010 IEEE International Energy Conference (pp. 51- 56). IEEE...

Abstract: Background: Terahertz (THz) imaging has emerged as a critical technology for security screening, offering non-invasive detection of concealed objects. However, existing systems face challenges in balancing sensitivity, imaging speed, and scalability. Superconducting Microwave Kinetic Inductance Detectors (MKIDs) present a promising solution due to their low noise, high sensitivity, and compatibility with large-scale arrays. This study focuses on developing a 600 GHz MKID-based imaging system optimized for human security screening, addressing the limitations of current THz imaging.....

Keywords: terahertz imaging, MKID, security screening, superconducting devices, millimeter wave technology.

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[5]. Rowe, S., Pascale, E., Doyle, S., Brien, T., Hargrave, P., Mauskopf, P., & Ade, P. (2016). A Scalable Readout For Microwave Kinetic Inductance Detector Arrays. Review Of Scientific Instruments, 87(3), 033105

Abstract: The Optimal Placement Problem (OPP) presents the need to solve the Phasor Measurement Units (PMU) economy problem as there are always limited budgets available to the power system operators, and it is not always a feasible practice to have a fully observable system. This paper presents the mathematical formulations for optimal PMU placement and the core methodology of the GA based on sparsity using a hypothetical Six Bus Network and an IEEE 14-Bus Network – both networks sourced from materials in the open domain and the approach specifically employs a Genetic Algorithm Optimizer (GA) for the optimal placement and a proposed Modified Sparsity Genetic.....

Keywords: Average Run-Time, Computational Run Time, Genetic Algorithm, Phasor Measurement Units, Modified Sparsity

[1] Fubara, I., & Ijeoma, RC. Investigating The Reliability And Viability Of Embedded Generation To Improve The Power Supply (Eleme, Rivers State As A Case Study), IOSR Journal Of Engineering (IOSRJEN), 2019; 09(08): 27-37.
[2] Ijeoma, RC., & Amadi, HN. Analysis Of A Grid-Based Rural Electrification Scheme For Ekpe-Aggah Community In Rivers State, Nigeria. International Journal Of Engineering And Modern Technology (IJEMT), 2024; 10(6): 148-158.
[3] Theodorakatos NP. Optimal Phasor Measurement Unit Placement For Numerical Observability Using Branch-And-Bound And A Binary-Coded Genetic Algorithm. Electric Power Components And Systems, 2019; 47(4-5): 357-371.
[4] Theodorakatos NP. Optimal Phasor Measurement Unit Placement For Numerical Observability Using A Two-Phase Branch-And-Bound Algorithm. International Journal Of Emerging Electric Power Systems, 2019; 19(3): 20170231.
[5] Baldwin TL, Mili, L, Boisen MB, & Adapa R. Power System Observability With Minimal Phasor Measurement Placement. IEEE Transactions On Power Systems, 1993; 8(2): 707-715.