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 36 for “"Distributed Generators"”.
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Distribution system reliability improvement using distributed generators
… as the hybrid energy source called Hybrid Distributed Generator. Investigation will be done on reliability improvement for Distribution system by using this Distributed Generator. Distributed Generator installed at Station Solar Hybrid in Tanjung Labian will be investigate. The SAIDI used …
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Power System Reliability Analysis with Distributed Generators
… power handling constraints. The application of distributed generators for electrical distribution systems is a new technology. The placement of distributed generation and its effects on reliability is investigated. Previous reliability calculations have been performed for static load models and …
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Petri net models of microgrids with distributed generators
… are investigated. One is how to control multiple distributed generators; and another is how to model both discrete event and continuous behaviors of a microgrid. To address these two issues, this thesis work applies Petri nets to both modeling and control of a microgrid. Ordinary Petri nets, …
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Optimal Allocation of STATCOMs and Wind-Based Distributed Generators using a Stochastic Mathematical Program
… compensators (STATCOMs) and wind-based distributed generators (W-DGs), considering the stochastic nature of wind velocities and load demands. The proposed optimization model is a mixed-integer nonlinear program (MINLP), which simultaneously allocates STATCOMs and W-DGs. It minimizes the …
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Stability of distribution networks connected with distributed generation
… of distribution networks that are connected with distributed generators. Due to the restructuring of the electricity industry in the region as well as environmental concerns, distributed generation is bound to increase at a higher rate in the Southern African region in the near future. Southern …
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Adaptive Critic-based Control of Voltage Source Converters in Microgrid Systems
… a single united entity, in which the majority of distributed energy resources are interfaced through voltage source converters (VSCs). In dynamic situations, specific structure, natural nonlinearity, and low physical inertia of VSCs may lead to higher sensitivity to network disturbances and power …
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Design and development of a communication-assisted microgrid protection system
… of energy have made renewable resources based Distributed Generators (DGs) more desirable.
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Advanced Power Sharing Scheme under Unbalanced and Nonlinear Loads in an Islanding Microgrid
… and harmonic power sharing inaccurately between distributed generators (DGs) and voltage quality problems are critical issues under unbalanced and nonlinear loads in the micro grids. Thus, an advanced power sharing scheme with unbalanced and harmonic loads in islanding micro grid is presented to …
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Control and Operation of a Microgrid Involving a PEM Fuel Cell Through Analysis and Experimentation
… cell (PEMFC) power module and two synchronous generators operating in an islanded mode. The work includes the experimental investigation of the dynamic characteristics of the distributed generators in this prototype microgrid. A control and operation system is developed for the prototype …
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Islanded Operation of Parallel Inverter-interfaced Microgrids with Photovoltaic Systems
… to distribute the load change among intermittent distributed generators according to their power ratings. A linearized model of microgrids is used to evaluate the change in powers (real-reactive) of the distributed generators due to the load change, but it is noticed that the linearized modeling …
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Hardware simulation of diesel generator and microgrid stability
… distribution systems, and more on local distributed generation sources. A microgrid, a local collection of distributed generators, has the potential to offer a more flexible and customizable power generation system, while significantly improving its effect on the environment. In order to …
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Voltage Unbalance-Cognizant Optimization of Distribution Grids
The integration of distributed generators (DGs) into the distribution grid has exacerbated voltage unbalance issues leading to greater risks of reducing equipment lifetime, equipment damages, and increased ohmic losses. Most approaches to regulating voltage in distribution systems only focus on …
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Islanding Detection of Grid Connected Distributed Generation Resources Using Symmetrical Components
… equipment connected to the network, specially distributed generators (DG). Network fluctuations occurring at different situations impact the accuracy of islanding detection method. The proposed islanding detection method is based on the well-known theory of symmetrical components. Single …
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Modeling techniques and control strategies for inverter dominated microgrids
… is concerned. Conventional fossil fuel based generators are connected in parallel to renewable energy sources as well as battery systems. The main contributions of this work comprise of: The analysis of detailed models and control structures of grid inverters, synchronous generators and …
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Bridging Machine Learning for Smart Grid Applications
… regulation schemes in distribution systems with distributed generators. In the first stage (regression), historical voltage measurements along with current meteorological data (solar irradiance and ambient temperature) are provided to random forest regressor to forecast voltage magnitudes of a …
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Simulation of a low voltage customer microgrid using petri nets
… is modified such that it consists of multiple distributed generators, storage, and the utility which is referred to as the main distribution grid in this thesis. A Discrete Petri Net is developed for load shedding which is critical for simulation purposes. Two types of Scheduling are developed, …
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Feeder reconfiguration on distribution network considering harmonics
… number of invertor/converter-based renewable generators are being connected to the distribution network, and given that these generators are harmonic sources, it is important to consider the impacts of the system harmonics in the feeder reconfiguration. Load flow analysis is used to determine …
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Consensus-Based Active and Reactive Power Control and Management of Microgrids
<p>Microgrids incorporating distributed generation and renewable energy sources offer potential solutions to the energy crisis while modernizing traditional grids. Despite cost-effectiveness in some technologies, financial support remains crucial for expensive ones like PV, fuel cells, and storage …
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Distribution Network Operation with High Penetration of Renewable Energy Sources
Distributed generators (DGs) are proposed as a possible solution to supply economic and reliable electricity to customers. It is adapted to overcome the challenges that are characterized by centralized generation such as transmission and distribution losses, high cost of fossil fuels and …
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