Τμήμα Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών / Department of Electrical and Computer Engineering: Recent submissions
Now showing items 21-40 of 2897
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Article Open Access
A comprehensive review of unmanned aerial vehicle-based approaches to support photovoltaic plant diagnosis
(Elsevier, 2024-01-03)Accurate photovoltaic (PV) diagnosis is of paramount importance for reducing investment risk and increasing the bankability of the PV technology. The application of fault diagnostic solutions and troubleshooting on operating ...
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Article
Electricity Day-Ahead Market Conditions and Their Effect on the Different Supervised Algorithms for Market Price Forecasting
(MDPI, 2023)Participants in deregulated electricity markets face risks from price volatility due to various factors, including fuel prices, renewable energy production, electricity demand, and crises such as COVID-19 and energy-related ...
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Conference Object
Charakterisierung und Degradation von Perowskit Mini-modulen
(2023)Organic-inorganic hybrid metal halide perovskites are poised to revolutionize the next generation of photovoltaics with their exceptional optoelectronic properties compatibility with low-cost and large-scale fabrication ...
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Conference Object
Learning curves from long-term outdoor testing and indoor optoelectronic characterization of perovskite mini-modules
(2023)Improving the performance of perovskite devices is key to increasing their competitiveness against conventional sources of energy. Several perovskite and perovskite on Silicon tandems were extensively investigated both ...
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Conference Object
Technology design and operation optimisation of integrated electricity- heat-cold-hydrogen systems in buildings
(2023)In this work, a comprehensive design and operation optimisation framework is adopted to support short- and long-term technology investment and operation decisions for integrated energy generation, conversion and storage ...
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Conference Object
Integration of Green Hydrogen and Heating/Cooling Subsystems to a 40 kWp Photovoltaic-60 kWh Battery Energy Storage System Living Lab Nanogrid
(2023)Decentralized energy systems can contribute to the maximization of the energy share of renewable energy, especially when such systems are integrated with effective and practical energy storage and other energy efficient ...
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Conference Object
Correlative microscopy and spectroscopy of perovskite mini-modules: degradation analysis
(2023)Perovskite materials have excellent prospects for semiconducting applications due to their desirable photoelectric properties. The morphology and the structure of the light absorption layer are crucially important for the ...
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Article
Characterizing soiling losses for photovoltaic systems in dry climates: a case study in Cyprus
(Elsevier, 2023)Ensuring optimal performance of solar photovoltaic (PV) systems requires the extensive assessment and understanding of losses of different origin that affect these installations. Soiling is a key loss factor influencing ...
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Conference Object
Reducing the photovoltaic operation and maintenance costs through an autonomous control operation center
(IEEE, 2023)An advanced control operation center to enable corrective, preventive and predictive maintenance, while also ensuring optimal photovoltaic (PV) plant performance was developed in this work. The developed software solution ...
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Conference Object
Extreme supervised algorithm for day ahead market price forecasting
(IEEE, 2023)Deregulation of electricity markets has ushered in a new era of heightened competition, allowing for the inclusion of fresh market entrants. However, market participation bears challenges related the extremely high volatility ...
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Conference Object
Outdoor study of Photovoltaic Mini-Modules with different perovskite compositions
(IEEE, 2023)A long-term outdoor study of photovoltaic mini-modules with different perovskite compositions was undertaken to detect differences in their long-term performance that could be attributed to their composition. Diurnal ...
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Conference Object
Advanced health-state data analytic workflow for utility-scale photovoltaic power plants
(IEEE, 2023)This work aims to present data analytic advances and next-generation workflows for utility-scale photovoltaic (PV) power plant monitoring. The proposed health-state architecture comprises of an integrated and scalable ...
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Article
Evaluating the techno-economic effect of pricing and consumption parameters on the power-to-energy ratio for sizing photovoltaic-battery systems: an assessment of prosumers in the Mediterranean Area
(MDPI, 2023)The momentous deployment of photovoltaic (PV) installations in modern times converted schemes utilised to support behind-the-meter systems to compensation mechanisms promoting self-consumption for all prosumer types. ...
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Article
Estimating the performance loss rate of photovoltaic systems using time series change point analysis
(MDPI, 2023)The accurate quantification of the performance loss rate of photovoltaic systems is critical for project economics. Following the current research activities in the photovoltaic performance and reliability field, this work ...
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Article Open Access
Estimating the Performance Loss Rate of Photovoltaic Systems Using Time Series Change Point Analysis
(MDPI, 2023-04-26)The accurate quantification of the performance loss rate of photovoltaic systems is critical for project economics. Following the current research activities in the photovoltaic performance and reliability field, this ...
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Article
ArrayFlex: A Systolic Array Architecture with Configurable Transparent Pipelining
(IEEE, 2023-06-02)Convolutional Neural Networks (CNNs) are the state-of-the-art solution for many deep learning applications. For maximum scalability, their computation should combine high performance and energy efficiency. In practice, the ...
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Article
Low-Power Data Streaming in Systolic Arrays with Bus-Invert Coding and Zero-Value Clock Gating
(IEEE, 2023-07-17)Systolic Array (SA) architectures are well suited for accelerating matrix multiplications through the use of a pipelined array of Processing Elements (PEs) communicating with local connections and pre-orchestrated data ...
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Article
Multi-Armed Bandits for Autonomous Test Application in RISC-V Processor Verification
(IEEE, 2023-07-17)Multi-armed bandit problems have recently received a great deal of attention, because they adequately formalize so called exploration-exploitation trade-offs arising in several relevant applications of recommendation ...
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Article
Exploiting data encoding and reordering for low-power streaming in systolic arrays
(Elsevier, 2023-10-03)Systolic Array (SA) architectures are well-suited for accelerating matrix multiplications through the use of a pipelined array of Processing Elements (PEs) communicating with local connections and pre-orchestrated data ...
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Article
IndexMAC: A Custom RISC-V Vector Instruction to Accelerate Structured-Sparse Matrix Multiplications
(IEEE, 2024-03)Structured sparsity has been proposed as an efficient way to prune the complexity of modern Machine Learning (ML) applications and to simplify the handling of sparse data in hardware. The acceleration of ML models - for ...