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It is normal to interleaved DC-DC converters to share the input current, minimize the current ripple and increase the power density. This thesis presents an input parallel output series converter integrating coupled inductors and switched capacitor demonstrating high static gain.
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In this thesis, a novel DC-DC converter known as the Coupled Inductors Combined Cuk-SEPIC' (CI-CCS) converter is explored, which is particularly attractive for these photovoltaic applications. A topological modification is investigated which provides several benefits, including increased power density, efficiency, and operational advantages for solar energy conversion.
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Two soft-switching DC-DC boost topologies are investigated to extend the switching frequencies of 1200 V, 100 A SiC MOSFET modules beyond the state-of-the-art, 75 kHz. Auxiliary circuits are introduced to the switching legs of the dual-interleaved boost converter to ensure snubber assisted zero voltage zero current (SAZZ) switching of all the semiconductor devices.
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Isolated Soft-Switching DC-DC Resonant Converters by Mohamed S. M. Almardy B.Sc., Higher Institute of Electronics, Libya, 1982 M.Sc. University of Guelph, Canada, 1999 A Dissertation Submitted in Partial Fulfillment of the Requirements for the degree of DOCTOR OF PHILOSOPHY In the Department of Electrical and Computer Engineering.
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In this thesis, an analytic methodology for DC-DC converters is used to fully determine the inherent nonlinear dynamics. System stability can be indicated by the derived Monodromy matrix which includes comprehensive information concerning converter parameters and the control loop.
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This dissertation consists of the following three articles: Paper I - Pages 9 to 38, “A High-Voltage-Gain DC-DC Converter based on Modified Dickson Charge Pump Voltage Multiplier,” accepted for publication in IEEE Transactions on Power Electronics. Paper II - Pages 39 to 69, “High-Voltage-Gain DC-DC Converter using Diode-.
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Bidirectional DC-DC Converter for Aircraft Electric Energy Storage Systems. UoM administered thesis: Phd. Authors: Thaiyal Ramasamy; Abstract. Future aircraft are likely to employ electrically powered actuators for adjusting flight control surfaces, and other high power transient loads. To meet the peak power demands of aircraft electric loads.
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High Efficiency Power Converter for Low Voltage High Power Applications - 2 - Preface This thesis is submitted in partial fulfillment of the requirements for obtaining the PhD degree at the Technical University of Denmark, DTU Elektro, Electronics Group. The work was carried.
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Title: The modular multilevel DC converters for MVDC and HVDC applications: Authors: Xiang, Xin: Item Type: Thesis or dissertation: Abstract: A dc structure for an electrical power system is seen to have important advantages over an ac structure for the purpose of renewable energy integration and for expansion of transmission and distribution networks.
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DC-DC converters with high voltage step-up ratio are having increasing demand because of its applications in photovoltaic (PV) power generation systems, fuel cell based energy conversion systems, UPS, etc. Conventional boost or buck-boost converter with high duty ratio can be used for such application. However, in practical implementation, the extreme high duty ratio operation may result in.
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PhD thesis, University of Sheffield. Alrezj, Osamah (2019) Signal Preprocessing Techniques to enhance Glucose Prediction from NIR and MIR spectra. PhD thesis, University of Sheffield. Alsharif, Rabab (2019) Dynamic Interactions of a Double-stage Photovoltaic Power Converter: Modelling and Control. PhD thesis, University of Sheffield.
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The thesis has three main themes: analysis and optimal design of Cuk DC-DC converters; integration of Cuk DC-DC converters with photovoltaic (PV) modules to improve operation during partial shading; and an artificial intelligence model for the PV module, permitting an accurate maximum power point (MPP) tracking in the integrated system.
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