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 153 for “"Grid-connected"”.
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Cybersecurity Methods for Grid-Connected Power Electronics
… security techniques within the context of a grid-connected, distributed energy resource. Further work is expected in the Cybersecure Power Router project. Consideration is also provided for the migration of the present research and the Smart Green Power Node to realize a pre-production …
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Prospects for grid-connected solar PV in Kenya
… in new infrastructure. I propose that grid-connected solar PV offers an alternative solution to displace expensive diesel generation, while capitalizing on Kenya's abundant solar resource and avoiding large upfront financing requirements. Coordinated operation of Kenya's extensive …
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Control of Grid-Connected Converters using Deep Learning
… (IBRs) within the power system, the control of grid-connected converters (GCC) has become pertinent due to the fact they interface IBRs to the grid. The conventional method of control for grid-connected converters (GCCs) such as the voltage-sourced converter (VSC) is through a decoupled control …
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Solar-based Single-stage High-efficiency Grid-connected Inverter
… low efficiency. A new solar-based single-stage grid-connected inverter system can achieve higher efficiency by reducing the power semiconductor switching loss and output stable and synchronized sinusoid current into the utility grid. Controlled by the digital signal processor, the inverter can …
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Designs for ultra-high efficiency grid-connected power conversion
Grid connected power conversion is an absolutely critical component of many established and developing industries, such as information technology, telecommunications, renewable power generation (e.g. photovoltaic and wind), even down to consumer electronics. There is an ever present demand to …
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Single-Stage Grid-Connected Multilevel Converters: Topologies and Control Strategies
… objectives for multilevel power converters in grid-connected applications have been elaborated. To address the identified requirements and challenges, a family of efficient multilevel converters with the single-stage dynamic voltage-boosting feature, reduced number of circuit components, …
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Stability assessment of 132kV Sabah grid-connected solar pV system
… power generation to be injected to the Northern Grid of SESB’s 132kV network.The system study was first carried out by injection of 25MW of solar PV plant and the result showed some violation in the transformer at 275/132kV Segaliud substation. With that mitigation 1 and 2 were adopted in further …
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Analysis and observation of grid connected single phase inverter integration
A single-phase grid connected with a photovoltaic (PV) power system that will provide high voltage gain with state model analysis for the control of the system has been presented. In addition to the solar panels, the system is equipped with a dc–dc converter, which allows the panels’ maximum power …
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Deep learning for islanding detection of grid-connected photovoltaic systems
… of the proposed method in islanding detection in grid-connected photovoltaic system. The proposed method utilized 31 features generated from 46 different cases to classify and detect the islanding. The proposed method succeeded in detecting islanding with a high accuracy of 98.1% and a rapid …
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Advanced control architectures for grid connected and standalone converter systems
… computational burden and stability in grid-connected and stand-alone based power electronic converter systems applicable for ac microgrids.</p><p>Two voltage sensorless control architectures, one for stand-alone applications and the other for grid-connected application are established …
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Design of LCL-filters for grid-connected voltage source inverters
… are preferred over conventional L-filters for grid-connected voltage source inverters (VSI) due to their superior harmonic attenuation, smaller filter size and weight. The LCL-filter design process is complex and takes an iterative approach due to the coherence between the filter parameters and …
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Design analysis of potential grid connected floating photovoltaic system in UTHM
… is to explore the feasibility of implementing a grid connected Floating Photovoltaic (FPV) system at the campus of UTHM. There are multiple unutilized water bodies (ponds/lakes) within the campus premises covering a total area of more than 50,000 m2. A 4000 m2 located at the lake near faculty 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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Control of distributed generation for grid-connected and intentional islanding operations
… in both intentional islanding (stand-alone) and grid-connected modes. In the grid-connected mode of operation, the DG is connected to the utility. The utility, which is assumed to be stiff, sets the voltage at the terminal of the DG inverter. The inverter controls the power being injected into …
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Islanding Detection of Grid Connected Distributed Generation Resources Using Symmetrical Components
… since it causes serious problems for 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 …
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Design and implementation of a grid-connected variable-speed PM WECS
As renewable energy (RE) sources are increasingly becoming an integral part of the world's power generation capacity, they are becoming more sophisticated and provide a solid platform for power generation today. Wind Energy is the fastest growing RE source. The correct understanding of issues …
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System Identification and Adaptive Control for Grid-Connected Single-Phase AC Inverters
… to improve the stability and performance of grid-tied single-phase inverter systems. There are three main control systems involved in the conversion of DC to AC power: a synchronizer, a current-controller, and a DC-bus controller. The focus of this thesis is to create a control system which …
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A Soft-Switched Grid-Connected DC/AC Inverter with Low Current Ripple
… conditioned to compatible forms for the utility grid system. The power conditioning can efficiently be performed through power electronic converters. Thus, power electronics is one of the key technologies for renewable energy harvesting systems. Because the utility grid infrastructure is based on …
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Development of a system for testing grid-connected permanent magnet wind generators
… The integration of wind power into the grid needs to be understood as well as the possible problems associated with it. The objective this thesis is to develop a laboratory-based system which can serve as a tool for studying non-ideal conditions associated with the integration of …
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