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 “"DC/AC conversion"”.
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Using time-independent analysis in optimizing inverter efficiency for grid-connected photovoltaic systems
… an ambient conditions, a PV output, and a dc-ac conversion layer. It reveals important trends, otherwise obscured in the time-dependent view of the data. The time-independent analysis technique is applied to the problem of optimizing inverter e ciency to improve the performance of …
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Design of a Phi-2 and a Class E inverter for underwater systems
… (WPT), which can transmit power efficiently across mediums within the submarine, therefore eliminating the need for physical connections and making underwater systems more compact and light-weight. The thesis presents two WPT systems for an AUV with two different inverters that convert DC …
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Toward high-efficiency high power density single-phase DC-AC and AC-DC power conversion - architecture, topology and control
Power conversion between the single-phase AC grid and DC sources or loads plays an indispensable role in modern electrical energy system for both generation and consumption. The renewable resources and electrical energy storage are integrated to the grid through inverters. Telecoms, data centers …
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MOSFET-based MMC for low-voltage DC distribution networks
… networks. In particular, numbers of high-capacity power electronic interfaces, such as electric vehicle (EV) chargers and embedded photovoltaic (PV) generation, have increased significantly. In comparison with conventional AC systems, low-voltage DC (LVDC) systems offer several potential …
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Design and development of a traction motor emulator using a three-phase bidirectional buck-boost AC-DC converter
An industrial drive testing, with a ‘real-machine’ can pave way, for some serious issues to test-bench, motor, and the operator. A slight disturbance in control logic amid testing, can damage the physical machine or drive. Such dangerous testing conditions can be avoided by supplanting real motor …
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Soft Switching Control and Loss Analysis for High Frequency Power Converters
… to the need for bulky filter inductors and capacitors. Wide bandgap (WBG) power semiconductor devices are considered game-changing devices to overcome the limitation posed by traditional Si counterparts, enabling us with much higher switching speed and lower switching loss. However, when the …
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Development of a Power Hardware-in-the-Loop Test Bench for Electric Machine and Drive Emulation
… loop (PHIL) platform to emulate electric machines for the purpose of a motor drive testbench with a particular focus on induction machine emulation. PHIL presents advantages over full-hardware testing of motor drives as the PHIL platform can save space and cost that comes from the physical …