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 20 for “"Hybrid power system"”.
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Hybrid power-system architecture for micro-grid
… part-loaded conditions. This thesis looks at a hybrid power-system architecture that can boost fuel economy through coordinated variable-speed operation of both prime-movers and drive loads. The propulsion plant of an electric ship serves as an example of a micro-grid with a focus on efficiency …
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Mobile Hybrid Power System Theory of Operation
Efficiency is a driving constraint for electrical power systems as global energy demands are ever increasing. Followed by the introduction of diesel generators, electricity has become available in more locations than ever. However, operating a diesel generator on its own is not the most energy …
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Remote control and monitoring of a hybrid power system
… Africa is developing a need for grid-independent power systems. Many options exist already in the form of diesel generators, solar panels and wind generators. This project is to do with marrying the various sources of power with efficient and intelligent control. Specifically, the terms of …
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Modeling and Analysis of Grid-Connected Solar-Wind Hybrid Power System
1 PDF file (86 pages)
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The design and evaluation of a small size wind-solar hybrid power system
1 PDF file (xi, 94 pages)
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A design method for specifying power sources for hybrid power systems
… reducing emissions and costs, is the adoption of hybrid power systems. This thesis investigates the motives behind seeking alternate energy sources and discusses the future need to move away from fossil fuels and the likely role hybrid power systems will play in the future. A general outline of a …
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Development of a snorkel for unmanned underwater vehicles
… design and development of an air snorkel for a hybrid power system for UUVs. The process beginning with concept generation and ending with manufacture will be discussed. Features discussed include the outer shell, float mechanism, and filtration system. The goal is to provide further advancement …
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Statistical Scheduling of Economic Dispatch and Energy Reserves of Hybrid Power Systems with High Renewable Energy Penetration
… approach focuses on minimizing the overall power operating cost with considerations of renewable energy uncertainty and power system security. A hybrid power system generates electricity from both conventional and renewable energy sources. In such a system, it is challenging and yet an open …
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A Method for Evaluating Aircraft Electric Power System Sizing and Failure Resiliency
… increasing the size and complexity of electrical power systems by increasing the number of electrical loads. With this increase in complexity comes a need to analyze electrical power systems using new tools. The Hybrid Power System Optimizer (HyPSO) developed by Airbus SAS is a simulator designed …
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Modelling and macroeconomic analysis of a Solar PV/diesel hybrid power plant
… and temperature and more. Following from this, a hybrid power system is developed under these circumstances and the information is compared with past research. A very informative discussion is then had as to what the model means on a macroeconomic scale and how it performs technically. The …
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Removing Barriers for Effective Deployment of Intermittent Renewable Generation
… meet the feeder-scale controllable load with a hybrid renewable generation (including wind and PV) and energy storage system. For the first method, an optimization problem is developed whose objective function is the cost of the hybrid system including the cost of renewable generation and …
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Step by step eigenvalue analysis with EMTP discrete time solutions
… captures a much wider range of eigenvalues and system operating states. A fundamental advantage of extracting the system eigenvalues directly from the EMTP solution is the ability of the EMTP to follow the characteristics of nonlinearities. The system's trajectory can be accurately traced and …
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Evaluation study for an ammonia-fed and solid-oxide fuel cell powered trailing suction hopper dredger for Van Oord Offshore Contractors
… towards an Ammonia-fed and Solid-Oxide-Fuel-Cell powered hybrid Trailing Suction Hopper Dredger (TSHD) has been researched. This has been done through the analysis of the Power Demand behavior of an existing TSHD, a multi-criteria analysis concerning a hybrid power system, a retrofit design of a …
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Hybrid Electric Distributed Propulsion for Vertical Takeoff and Landing Aircraft
… the interactions between aerodynamics and hybridelectric power system (HEPS) design and control for vertical takeoff and landing (VTOL) aircraft applications. Specifically, this research focuses on embedded distributed electric propulsion systems, for which the aerodynamic forces and …
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Control scheme for cathode airflow during load swings in a solid oxide fuel cell/gas turbine system
… airflow in a solid oxide fuel cell gas turbine hybrid power system was analyzed using the Hybrid Performance (HyPer) hardware simulation at the National Energy Technology Laboratory (NETL), U.S. Department of Energy. This work delves into previously unexplored operating practices for HyPer, via …
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Balancing of intermittent renewable generation in smart grid
… residential hot water heaters to balance wind power deviation from plan. The electricity supply-demand balancing problem becomes increasingly more difficult. A large portion of complexity to this problem comes from the fact that most renewable energy sources are inherently hard to control and …
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Efficient Operation of Diesel Generator Sets in Remote Conditions
… been extensively used for standby and remote power generation over the past hundred years. Due to their use for standby power, these diesel gensets are designed to operate in conjunction with the grid, which relates to a fixed speed operation with a 60 Hz AC output. For operation in remote …
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Synchrophasor Sensing and Processing Based Smart Grid Security Assessment for Renewable Energy Integration
<p>With the evolution of energy and power systems, the emerging Smart Grid (SG) is mainly featured by distributed renewable energy generations, demand-response control and huge amount of heterogeneous data sources. Widely distributed synchrophasor sensors, such as phasor measurement units (PMUs) …
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Study on configuration and operation strategies of solar aided power generation plant
… the techno-economic performance of a Solar Aided Power Generation (SAPG) plant. An SAPG plant is a solar thermal hybrid power system. In such a power system, the solar thermal energy is used to displace the heat of the extraction steam in a regenerative Rankine cycle (RRC) power plant to preheat …