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 35 for “"solar array"”.
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Analysis And Simulation Tools For Solar Array Power Systems
… tools developed specifically for the design of solar array power systems. Contributions are made in several aspects of the system design phases, including solar source modeling, system simulation, and controller verification. A tool to automate the study of solar array configurations using …
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Differential power processing for increased solar array energy harvest
… the potential benefits of DPP in large-scale solar arrays. Mitigating mismatch is an important design parameter in the layout and orientation of solar arrays. To compare different designs, a solar simulator is developed which models annual energy production for arrays with and without DPP. …
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The effect of solar array degradation in orbit-raising with electric propulsion
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1992.
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Arc rate predictions and flight data analysis for the Solar Array Module Plasma Interactions experiment (SAMPIE)
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1995.
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Analysis and simulation of dynamics of spacecraft power systems
… for the Direct Energy Transfer (DET) system, solar array switching system and partial shunt system to facilitate design, analysis and performance verification. Large-signal analyses are performed to identify stability conditions and to predict large-signal dynamic behavior for each mode of …
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INCREASED SPEED AND ENDURANCE OF ADVANCED MULTI-COPTERS THROUGH THE USE OF SIDE THRUSTERS
… sonobuoy but with added air mobility. It uses a solar array for power production to gain energy independence, but the array degrades cruise flight performance. The addition of horizontal side-thrusters is explored, with the objective of improving cruise flight efficiency, increasing both speed …
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Structural Scaling Metrics For Tensioned-Blanket Space Systems
… are established for rectangular flexible blanket solar array structural architectures. The approach takes advantage of the fact that an ideal solar array structure is a system of coupled beam and tensioned blanket components rather than the typical simplifying approach of considering only one beam …
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Solar-based Single-stage High-efficiency Grid-connected Inverter
… cogeneration and distribution. Traditional solar-based inverter system is two stages in cascaded, which has a simpler controller but low efficiency. A new solar-based single-stage grid-connected inverter system can achieve higher efficiency by reducing the power semiconductor switching loss …
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Siting solar energy facilities in New York state : sources of and responses to controversy
… sources of energy. One such source is solar power, and the federal and state governments in the United States have created various policies and financial incentives to encourage adoption of solar energy technologies. While solar energy offers tremendous potential benefits, siting …
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Seeing solar on campus : a visible photovoltaic installation on campus
… selecting a site on the MIT campus for a visible solar photovoltaic installation. Visibility, solar exposure, advertising potential, aesthetics, interactivity and direct or important functional use are indicated as the metrics by which to evaluate possible sites. Four installations are …
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Modeling and analysis of spacecraft power systems
… of the large-signal behavior of the nonlinear solar array system by employing the state-plane method. The analysis of the solar array system operation focused on the transition mode between the shunt mode and the battery discharging mode is presented. The subsystem interaction problems in the …
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Design of a multi-module multi-phase battery charger for the NASA EOS space platform testbed
… Testbed. The testbed utilizes battery and solar array simulators which allow for realistic battery charger testing.
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Solar Energy Conversion and Control Using Organic Photovoltaic Cells
… system that can predict the performance of solar arrays in various environmental conditions. The simulation has been carried out in Matlab/Simulink, and upon entering the cell’s parameters, it provides key electrical characteristics such as the cell’s I-V curve and efficiency information. …
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Does it have to be so complicated? : municipal renewable energy projects in Massachusetts
… interviews, and an in-depth case study of a solar Brightfield project implemented in Brockton, Massachusetts. The case study describes in detail the city's experience implementing a "Brownfields to Brightfields" solar project initiated through the US Department of Energy's Brightfields …
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Improving the Maximum Power Point Tracking Efficiency of Photovoltaic Arrays via Machine Learning and Deep Learning
… conditions, photovoltaic (PV) modules in a solar array experience varying irradiance. A Global Maximum (GM) and multiple Local Maximums (LMs) can originate on the Power-Voltage (P-V) curve under nonuniform irradiance conditions. There are many maximum power point tracking (MPPT) algorithms …
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Immersed Finite Element Particle-In-Cell Simulations of Ion Propulsion
… spacecraft. Plume induced contaminations on the solar array are studied for a variety of ion thruster configurations including multiple thruster firings.
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Construction of FASR subsystem testbed and application for solar burst trajectories and RFI study
The construction of the Frequency Agile Solar Radiotelescope (FASR) Subsystem Testbed (FST) and observational results are described. Three antennas of Owens Valley Solar Array (OVSA) have been upgraded with newly designed, state of art technology. The 1-9 GHz RF signal from the antenna feed is …
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Modeling the effects of proton irradiation [on] CIGS solar cells
… is very harsh on photovoltaic devices. Solar protons (hydrogen ions) cause large numbers of vacancies, which act as recombination centers at deep levels and can create compensating defects that reduce the acceptor concentration at shallow levels in semiconductors. This in turn, can …
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Analysis of the peak power of a photovoltaic array system under outdoor conditions at Vuwani Region of Limpopo Province
… has been made to test the performance of a solar array under the outdoor condition. Experimental investigations have been made to find its suitability for the rural Limpopo for the small scale electricity generation. This research is also geared towards the testing of validity of the data …
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The assessment of the impact causuarina cunninghamiana miq. (river-she-oak) windbreak on macadamia trees orchards in Limpopo Province, South Africa
… has been made to test the performance of a solar array under the outdoor condition. Experimental investigations have been made to find its suitability for the rural Limpopo for the small scale electricity generation. This research is also geared towards the testing of validity of the data …
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