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 7 of 7 for “"Grid faults"”.
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A Framework for Assessing the Reliability of Wind Energy Conversion Systems
… increased penetration of wind energy into the grid imposes new operating conditions on power systems. This change requires development of an adequate reliability framework. This thesis proposes a framework for assessing WECS reliability in the face of external disturbances, e.g., grid faults …
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Advanced control in smart microgrids
… advanced control strategies in smart microgrid applications. In recent years, due to the rapid depletion of fossil fuels, increasing demand of electricity, and more strict compulsory government policies on reduction of greenhouse gas emissions, renewable energy technologies are attracting …
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Facilitating seamless transitions in flexible microgrids: A unified control systems framework for enabling multi-mode inverters
… of renewable energy sources into the power grid offers both opportunities and challenges for grid performance, stability, and reliability. Inverter-based microgrids offer a promising solution for the large-scale integration of renewable resources, which often come with a high degree of …
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Learning from multi-modal spatiotemporal data: machine learning approaches to advance resilience in smart grids
The electric grid has been expanding both in size and the technologies used. As of the 2020s, the United States power grid consists of more than 9,200 electric generating units with more than 1 million megawatts of generating capacity connected to more than 300,000 miles of transmission lines. The …
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Highly Efficient Gan-Based Single-Phase Transformer-Less Pv Grid-Tied Inverter
… needs to be improved is the power converter. Grid-tied transformer-less inverters have gained a lot of interest in recent years because of their higher efficiency, reduced volume and lower cost compared to traditional line transformer inverters.</p> <p>This dissertation discusses single-phase …
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Grid current control methods for MV wind energy conversion systems
… reduce the cost of energy. Additionally, the grid converter is the only way to connect the renewable power generation to the power grid. Grid converter control strategies considering normal and abnormal operation have been one of most concerned points for renewable energy integration. Based on …
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Συμβολή στο σχεδιασμό ηλεκτρονικών μετατροπέων ισχύος για διασυνδεδεμένα με το δίκτυο χαμηλής τάσης φωτοβολταϊκά συστήματα
Η παρούσα διδακτορική διατριβή αναφέρεται σε διεσπαρμένες Φωτοβολταϊκές (Φ/Β) μονάδες (κτιριακά Φ/Β συστήματα) ισχύος 1–20kW, που συνδέονται στο δίκτυο διανομής χαμηλής τάσης. Ειδικότερα, το αντικείμενο της εργασίας εστιάζεται στη διερεύνηση της μεθοδολογίας ελέγχου και της συμπεριφοράς των …