Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 46 for “"Photovoltaic (PV) systems"”.
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A comparative analysis of off-grid photovoltaic (PV) systems & businesses performance in The Gambia and Kenya
… root causes of the frequent failures of solar photovoltaic energy systems(PVESs) and related businesses in off-grid rural communities (OGRCs) (Bhattacharyya, 2013;Onasanya, 2017). The primary objective is to examine the factors constraining the success of these systems and to develop solutions …
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Real-time modeling, simulation and analysis of a grid connected PV system with hardware-in-loop protection.
… power and energy industry in the world today. Photovoltaic (PV) systems are one of the most common and established forms of renewable energy technologies. With the increased installation of PV systems both on a small and large scale, it is high critical that the impacts and operations of PV …
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Design and development of a novel DC/DC bidirectional converter with dual solar/PV-based snow removal and EV charging functionality
Different factors affect solar photovoltaic (PV) systems by decreasing input energy and reducing the conversion efficiency of the system. One of these factors is the effect of snow cover on PV panels, a subject lacking sufficient academic research. This thesis reviews current research for snow …
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Implementation and control of distributed maximum power point tracking in solar photovoltaic applications
… tracking (MPPT) is an important feature in solar photovoltaic (PV) systems as it increases the energy yield from such systems by optimizing their operating point. Current state-of-the-art solutions perform MPPT for a whole system, a string of panels or an individual panel within a PV system. This …
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The impact of large-scale solar photovoltaic adoption on prices and reliability in the New England power pool
… The higher levels of these technologies in power systems that are anticipated, or at least believably envisioned, make inquiries about their likely impacts on power systems relevant. The intermittency of technologies like wind and solar photovoltaic (PV) systems drives debates about whether larger …
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Size Optimization of Utility-Scale Solar PV System Considering Reliability Evaluation
… optimization approach for utility-scale solar photovoltaic (PV) systems is proposed. The purpose of the method is to determine the optimal solar energy generation capacity and optimal location by the minimizing total system cost subject to the constraint that the system reliability …
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Analysis of tolerable capacity limits of intermittent photovoltaic power connected to the Namibian national electricity grid
Grid-connected photovoltaic (PV) systems are being utilized at an increasing level worldwide. Even though the increasing addition of intermittent PV power to the grid systems may lead to grid instability, PV systems feeding power into the Namibian electricity grid system are on the increase. The …
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How the sustainability transition in energy is transforming the built environment of South African cities
… cities, mostly in the form of rooftop solar photovoltaic (PV) systems. This study applies an integrated approach utilizing the Multi-level Perspective (MLP) to trace the current ST trajectory, whilst employing the Technology Innovation Systems (TIS) framework as a focal lens, recently adapted …
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Using time-independent analysis in optimizing inverter efficiency for grid-connected photovoltaic systems
… for designing and evaluating grid-connected photovoltaic (PV) systems is introduced, which establishes a direct relationship between the inputs to the system, temperature and irradiance, and system performance criteria. For a given year, temperature and irradiance data are rearranged to form …
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Maximum Power Point Tracking Using Kalman Filter for Photovoltaic System
… maximum power point tracking (MPPT) method for photovoltaic (PV) systems using Kalman filter. The Perturbation & Observation (P&O) method is widely used due to its easy implementation and simplicity. The P&O usually requires a dithering scheme to reduce noise effects, but the dithering scheme …
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Research on Dual-Axis Solar Tracking Systems Using AI-Controlled Boost Converter for Sustainable Energy Solutions
Solar photovoltaic (PV) systems lose significant energy yield when panels cannot track the sun dynamically. Dual-axis tracking systems address this limitation but require precise orientation estimation and efficient power conditioning, both of which remain technically challenging in embedded and …
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An Interactive Menu-Driven Design Tool For Stand-Alone Photovoltaic Systems
The use of Photovoltaic (PV) systems to meet energy demand in rural or remote regions of the world is growing at a very fast pace. Rural electrification projects in developing countries have relied primarily on subsidies from both the government and the national utility. Since using the national …
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The integration of pumped hydro storage systems into PV microgrids in rural areas
Photovoltaic (PV) systems are popular in rural areas because they provide low cost and clean electricity for homes and irrigation systems. The primary challenge of PV systems is their intermittent nature. The typical solution is storing energy in batteries; however, they are expensive and possess a …
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An Economic Analysis of Residential Photovoltaic Systems with and without Energy Storage
<p>Residential photovoltaic (PV) systems serve as a source of electricity generation that is separate from the traditional utilities. Investor investment into residential PV systems provides several financial benefits such as federal tax credit incentives for installation, net metering credit from …
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Optimal placement of battery energy storage system for voltage profile improvement and power loss reduction
… the optimal placement of Battery Energy Storage Systems (BESS) in a modified 16-bus Witzenberg radial distribution network incorporating renewable energy sources, particularly photovoltaic (PV) systems. As the distribution networks increasingly integrate intermittent renewable energy sources, the …
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Optical design guidelines for spectral splitting photovoltaic systems : a sensitivity analysis approach
… environmental impact for the energy sector. Photovoltaic (PV) systems provide the most popular method used today for harnessing this power. However, the costs of these systems are still higher than traditional fossil fuel generation, leading to limited adoption. One of the major drivers of …
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A Real-time Management of Distribution Voltage Fluctuations due to High Solar Photovoltaic (PV) Penetrations
Due to the rapid growth of grid-tied solar photovoltaic (PV) systems in the generation mix, the distribution grid will face complex operational challenges. High PV penetration can create overvoltages and voltage fluctuations in the network, which are major concerns for the grid operator. …
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An investigation into the challenges and the management of firewood scacity on rural livelihood in Limpopo Province, Vhembe District: a case study of Nweli Village
… the paper recommends the promotion of solar photovoltaic (PV) systems, which have a potential of being adopted in the area. It is also argued that policies which enhance integrated rural development and promote sustainable energy utilization in rural communities need to be put in place and …
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The use of hourly, rather than averaged, data time series modelling to improve projections of power usage and demand in California through to 2030
… developments: the large-scale deployment of photovoltaic (PV) systems with lithium-ion battery (LIB) storage and the widespread adoption of battery electric vehicles (BEVs). These changes are central to California’s climate and energy goals of reaching 60% renewable electricity by 2030, 100% …
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Hot spot detection and protection methods for photovoltaic systems
Photovoltaic (PV) systems are becoming more prevalent as countries around the world focus on integrating renewable energy resources into their power grids. Also, there is a need for power grids to become more intelligent and adaptive. As a result, PV systems require additional functionality, such …
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