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 39 for “"Micro-Grid"”.
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Hybrid power-system architecture for micro-grid
… of an electric ship serves as an example of a micro-grid with a focus on efficiency and dynamic performance. The proposed power distribution system employs doubly-fed machines for generation and for variable speed loads, and can be used where variable-speed operation improves prime-mover …
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Detection and Classification of Disturbances in Islanded Micro-grid
Micro-grids are envisaged as single plug-and-play electrical systems that can operate either in grid-connected or islanded modes. Their main sources of power are renewable and are usually integrated through power electronic devices. These present new challenges to reliable operation of the system …
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Energy management of micro-grid using cooperative game theory
Micro-grid (MG) has been introduced as a low voltage and a very small power system connected to a distribution grid through the point of common coupling. It consists of distributed energy resources (DERs) such as solar Photovoltaic (PV), wind turbine, fuel cell, etc.), interconnected load and …
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Optimisation of hybrid micro-grid system for LTE base station
Submitted in the fulfilment of the requirements for the degree of Master of Engineering in Electrical Power Engineering, Durban University of Technology, Durban, South Africa, 2020.
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Shipboard Fault Detection, Marine Micro-Grid Power Diagnostics and Vessel Ventilation Monitoring
Non-intrusive load monitoring has proven its utility for equipment history logging, activity tracking, condition based maintenance, fault detection & diagnostics and energy scorekeeping through numerous installations on various Navy and Coast Guard vessels throughout the last several decades. Using …
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Design of a 380 V/24 V DC Micro-Grid for Residential DC Distribution
… research will investigate a direct current (DC) micro-grid for power distribution in residential households. DC distribution has a long history, being considered at the beginning with alternating current (AC) distribution; however, due to the ease of distributing AC power over a long distance …
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Development of a multi-port DC-DC converter for a magnetically-coupled residential micro-grid
… presents an effort to develop a residential micro-grid, including multiple renewable energy sources, energy storage, and local loads with multiport power electronic converters capable of bidirectional power flow and intelligent algorithms for power converter and micro-grid controls. A …
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Improving electricity supply in the Indian state of Odisha using under-the-grid micro-grid technology
… and presence of wildlife activity that make the grid maintenance a complex affair, the DISCOMs incur into exceptionally higher O&M costs. The objective of this thesis is to study some issues that result in systematic economic losses in localized areas for Tata Power Odisha (TPO) who has recently …
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Transients in Electricity Networks with Distributed Generation
Micro-grids are becoming very popular due to the plug-and-play nature of their integration. However, the high penetration of distributed generators (DGs) may also create potential instability due to the special characteristics of DG units and their low inertia. With the increase of DG penetration …
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An iterative analytical design framework for the optimal designing of an off-grid renewable energy based hybrid smart micro-grid: (a case study in a remote area - Jordan)
… security and reducing cost of such isolated off-grid systems, is becoming an urgently needed necessity for the effective strategic planning of Energy Systems. The aim of this research project was to design and implement a new decision support framework for the optimal design of hybrid micro grids …
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Automated wavelet-based fault detection and diagnosis for smart distribution systems and microgrids
… can be defined as a two-way power flow. The Micro-Grid system is defined as a part of the smart distribution system that may include distributed energy resources, energy storage systems and loads. In addition, the Micro-Grid system can operate in two modes, grid-connected or …
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Adaptive Hierarchical Control in V2G Integrated Micro-grids
… provide energy storage service in a Vehicle-to-Grid (V2G) integrated micro-grid is presented in this thesis. The control system consists of an on-line self-tuning (ST) adaptive inverter controller at the primary level and an Adaptive Neuro-Fuzzy Inference System (ANFIS) based energy management …
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Physical modeling of wind turbine generators in a small scale analog system
… behaviors of wind turbines and its use in the micro-grid network. The environment set-up is based on a smart micro-grid system, which consists of the grid, a diesel generator, a solar panel, and a wind farm. The hardware work includes the design of a 2.5kW inverter and a L-C-L grid filter …
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Frequency Control of Wind and PV Based Isolated Microgrid
<p>The wind and solar PV based isolated microgrid can be economical and reliable for the remote area where the grid is not available. The frequency and voltage fluctuation are major problems in such remote microgrid due to intermittent nature of renewable resources like wind and solar PV. The …
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Energy Resiliency: How DoD can become Energy Resilient and Still Meet its Renewable Energy Goals
… renewable energy; and make investments in new micro-grid technologies that can decouple the DoD from the aging commercial grid and that may encourage third-party energy partnerships.
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A scalable methodology for modeling cities as systems of systems
… in turn impacting the performance of the micro grid. Extending the time between deliveries by 24 and 48 hours revealed two systems experienced resource depletions. Lastly, two technology insertions cases were conducted to assess the impact of adding a laundry water reuse system (LWRS) and …
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MULTI AGENT SYSTEM APPROACH TO SOLVE DISTRIBUTED ENERGY RESOURCE ALLOCATION PROBLEM TO INCREASE THE STABILITY AND RELIABILITY OF THE DISTRIBUTION SYSTEM
… conventional power distribution system. Smart grid and micro-grid technologies make the modern distribution system more complicated. In modern power distribution network two way power flow is possible due to the installation of distributed energy resources compared to the one way power flow …
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A cost-effective battery management and monitoring strategy for micro-grids in India
… vehicles, mobile devices, etc. Increasingly, micro-grids and off-grid home electric systems have become popular in the developing world to help meet energy demands. These systems help provide electric power to customers when the main power utility is unable to do so, such as in rural …
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Improved renewable energy power system using a generalized control structure for two-stage power converters
… in a renewable energy power system for smart grid and micro grid systems. The generalized control structure is based on the two-loop average-mode-control technique, and created by reconstructing the conventional control structure and feedback configuration. It is broadly used for both dc-dc …
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An Intelligent Lead Acid Battery Management System for Solar and Off-Peak Energy Storage
The development of micro-girds which combine several localized systems into a small power network has drawn recent attention. They can operate either as a self-contained energy network or they can be integrated into a centralized power grid. A variety of technologies have been studied to use solar …
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