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Developing a photovoltaic MPPT system
Title
Developing a photovoltaic MPPT system.
Creator
Bennett, Thomas, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
Many issues related to the design and implementation of a maximum power point tracking (MPPT) converter as part of a photovoltaic (PV) system are addressed. To begin with, variations of the single diode model for a PV module are compared, to determine whether the simplest variation may be used for MPPT PV system modeling and analysis purposes. As part ot this determination, four different DC/DC converters are used in conjunction with these different PV models. This is to verify consistent...
Show moreMany issues related to the design and implementation of a maximum power point tracking (MPPT) converter as part of a photovoltaic (PV) system are addressed. To begin with, variations of the single diode model for a PV module are compared, to determine whether the simplest variation may be used for MPPT PV system modeling and analysis purposes. As part ot this determination, four different DC/DC converters are used in conjunction with these different PV models. This is to verify consistent behavior across the different PV models, as well as across the different converter topologies. Consistent results across the different PV models, will allow a simpler model to be used for simulation ana analysis. Consistent results with the different converters will verify that MPPT algorithms are converter independent. Next, MPPT algorithms are discussed. In particular,the differences between the perturb and observe, and the incremental conductance algorithms are explained and illustrated. A new MPPT algorithm is then proposed based on the deficiencies of the other algorithms. The proposed algorithm's parameters are optimized, and the results for different PV modules obtained. Realistic system losses are then considered, and their effect on the PV system is analyzed ; especially in regards to the MPPT algorithm. Finally, a PV system is implemented and the theoretical results, as well as the behavior of the newly proposed MPPT algorithm, are verified.
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Date Issued
2012
PURL
http://purl.flvc.org/FAU/3356887
Subject Headings
Photovoltaic power systems, Design, Electronic circuits, Electric current converters, Power (Mechanics), Renewable energy sources
Format
Document (PDF)
Predicting failure of remote battery backup systems
Title
Predicting failure of remote battery backup systems.
Creator
Aranguren, Pachano Liz Jeannette, Khoshgoftaar, Taghi M., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
Uninterruptable Power Supply (UPS) systems have become essential to modern industries that require continuous power supply to manage critical operations. Since a failure of a single battery will affect the entire backup system, UPS systems providers must replace any battery before it runs dead. In this regard, automated monitoring tools are required to determine when a battery needs replacement. Nowadays, a primitive method for monitoring the battery backup system is being used for this task....
Show moreUninterruptable Power Supply (UPS) systems have become essential to modern industries that require continuous power supply to manage critical operations. Since a failure of a single battery will affect the entire backup system, UPS systems providers must replace any battery before it runs dead. In this regard, automated monitoring tools are required to determine when a battery needs replacement. Nowadays, a primitive method for monitoring the battery backup system is being used for this task. This thesis presents a classification model that uses data mining cleansing and processing techniques to remove useless information from the data obtained from the sensors installed in the batteries in order to improve the quality of the data and determine at a given moment in time if a battery should be replaced or not. This prediction model will help UPS systems providers increase the efficiency of battery monitoring procedures.
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Date Issued
2013
PURL
http://purl.flvc.org/fau/fd/FA0004002
Subject Headings
Electric power systems -- Equipment and supplies, Energy storing -- Testing, Lead acid batteries, Power electronics, Protective relays
Format
Document (PDF)
Power system modeling and optimization methods vis-a-vis integrated resource planning (IRP)
Title
Power system modeling and optimization methods vis-a-vis integrated resource planning (IRP).
Creator
Arsali, Mohammad H., Florida Atlantic University, Neelakanta, Perambur S., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
The state-of-the-art restructuring of power industries is changing the fundamental nature of retail electricity business. As a result, the so-called Integrated Resource Planning (IRP) strategies implemented on electric utilities are also undergoing modifications. Such modifications evolve from the imminent considerations to minimize the revenue requirements and maximize electrical system reliability vis-a-vis capacity-additions (viewed as potential investments). IRP modifications also provide...
Show moreThe state-of-the-art restructuring of power industries is changing the fundamental nature of retail electricity business. As a result, the so-called Integrated Resource Planning (IRP) strategies implemented on electric utilities are also undergoing modifications. Such modifications evolve from the imminent considerations to minimize the revenue requirements and maximize electrical system reliability vis-a-vis capacity-additions (viewed as potential investments). IRP modifications also provide service-design bases to meet the customer needs towards profitability. The purpose of this research as deliberated in this dissertation is to propose procedures for optimal IRP intended to expand generation facilities of a power system over a stretched period of time. Relevant topics addressed in this research towards IRP optimization are as follows: (1) Historical prospective and evolutionary aspects of power system production-costing models and optimization techniques; (2) A survey of major U.S. electric utilities adopting IRP under changing socioeconomic environment; (3) A new technique designated as the Segmentation Method for production-costing via IRP optimization; (4) Construction of a fuzzy relational database of a typical electric power utility system for IRP purposes; (5) A genetic algorithm based approach for IRP optimization using the fuzzy relational database.
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Date Issued
1998
PURL
http://purl.flvc.org/fcla/dt/12567
Subject Headings
Electric utilities--United States, Electric power system--United States
Format
Document (PDF)
Design of a power management model for a solar/fuel cell hybrid energy system
Title
Design of a power management model for a solar/fuel cell hybrid energy system.
Creator
Melendez, Rosana., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
This thesis proposes a Power Management Model (PMM) for optimization of several green power generation systems. A Photovoltaic/Fuel cell Hybrid Energy System (PFHES) consisting of solar cells, electrolyzer and fuel cell stack is utilized to meet a specific DC load bank for various applications. The Photovoltaic system is the primary power source to take advantage of renewable energy. The electrolyzer-fuel cell integration is used as a backup and as a hydrogen storage system with the different...
Show moreThis thesis proposes a Power Management Model (PMM) for optimization of several green power generation systems. A Photovoltaic/Fuel cell Hybrid Energy System (PFHES) consisting of solar cells, electrolyzer and fuel cell stack is utilized to meet a specific DC load bank for various applications. The Photovoltaic system is the primary power source to take advantage of renewable energy. The electrolyzer-fuel cell integration is used as a backup and as a hydrogen storage system with the different energy sources integrated through a DC link bus. An overall power management strategy is designed for the optimization of the power flows among the different energy sources. Extensive simulation experiments have been carried out to verify the system performance under PMM governing strategy. The simulation results indeed demonstrate the effectiveness of the proposed approach.
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Date Issued
2010
PURL
http://purl.flvc.org/FAU/2705074
Subject Headings
Electric power systems, Building-integrated photovoltaic systems, Renewable energy sources, Hydrogen as fuel, Research
Format
Document (PDF)
Design and Implementation of a Solar Platform and a Fuel Cell System on an Electric Utility Vehicle
Title
Design and Implementation of a Solar Platform and a Fuel Cell System on an Electric Utility Vehicle.
Creator
Saelzer, Max W., Zilouchian, Ali, Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
In thesis work, an innovative design and implementation of a "trybrid" system is carried out. This new "trybrid" system is the continuation of the solar electric vehicle which was designed and developed as an undergraduate independent study under the supervision of Dr. Roger Messenger. The work done on this thesis consists in the implementation of the existing solar electric vehicle outfitted with a fuel cell system. For this, two fuel cell systems were analyzed as possible candidates for the...
Show moreIn thesis work, an innovative design and implementation of a "trybrid" system is carried out. This new "trybrid" system is the continuation of the solar electric vehicle which was designed and developed as an undergraduate independent study under the supervision of Dr. Roger Messenger. The work done on this thesis consists in the implementation of the existing solar electric vehicle outfitted with a fuel cell system. For this, two fuel cell systems were analyzed as possible candidates for the retrofit. Also, different hydrogen storage methods are analyzed in terms of efficiency and safety. This thesis also covers the control system utilized to manage the energy from the two different energy sources. Special attention is devoted to the method of determining the state of charge of the batteries which controls fuel cell turn on time. This first prototype shows the different functionalities and optimized features that maximize the solar energy production, and determines exactly when to turn on the fuel cell for minimum hydrogen usage.
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Date Issued
2006
PURL
http://purl.flvc.org/fau/fd/FA00012546
Subject Headings
Electric power systems, Hybrid electric vehicles, Fuel cells--Technological innovations, Automobile industry and trade--Forecasting
Format
Document (PDF)
Modern power distribution and conversion in undersea systems
Title
Modern power distribution and conversion in undersea systems.
Creator
Tusting, Robert F., Taylor, Lawrence D.
Date Issued
1991
PURL
http://purl.flvc.org/FCLA/DT/3351947
Subject Headings
Remote submersibles--Design and construction, Submersibles--Design and construction, Power systems, Electric current converters
Format
Document (PDF)
Applications of pulse width modulation to LEDs, fuel cells and battery technology
Title
Applications of pulse width modulation to LEDs, fuel cells and battery technology.
Creator
Watt, Wayne W., College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
Abstract/Description
It has become a case of great desire and, in some instances, a requirement to have systems in engineering be energy efficient, in addition to being effectively powerful. It is rare that there is a single technique that has the range to make this possible in a wide collection of areas in the field. The work done in this thesis exhibits how Pulse Width Modulation (PWM) bridges LEDs, plug in vehicles, fuel cells and batteries, all seemingly different sub categories of electrical engineering. It...
Show moreIt has become a case of great desire and, in some instances, a requirement to have systems in engineering be energy efficient, in addition to being effectively powerful. It is rare that there is a single technique that has the range to make this possible in a wide collection of areas in the field. The work done in this thesis exhibits how Pulse Width Modulation (PWM) bridges LEDs, plug in vehicles, fuel cells and batteries, all seemingly different sub categories of electrical engineering. It stems from an undergraduate directed independent study supervised by Dr. Zilouchian that encircled LEDs and electric vehicles and how they contribute to a smart electric grid. This thesis covers the design and development of a prototype board that test how PWM saves energy, prolongs lifespan and provides a host of customizable features in manufactured LED lights that are used in the marine industry. Additionally, the concept of charging batteries that provide power to electric vehicles was explored. It is stressed that consumers who are interested in electric vehicles are concerned about refueling and recharge times. It is natural that a competing product, such as the electric vehicle in a world dominated by internal combustion engines, will perform on par if not better than existing choices. Tests are conducted to investigate the methods of fast battery charging and the challenges this technique creates. Attention is also given to the development of a pulsed Proton Exchange Membrane (PEM) fuel cell, specifically to prove whether pulse modulation is more efficient in a hydrogen producing fuel cell as opposed to direct-driven voltage and current alternatives.
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Date Issued
2011
PURL
http://purl.flvc.org/FAU/3174313
Subject Headings
Power electronics, Digital control systems, Electric current converters, Fuel cells, Economic aspects
Format
Document (PDF)