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Showing 1 to 14 of 14 for “"Microinverter"”.
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Active Power Decoupling (APD) Converter for PV Microinverter Applications
… density, reliability, and cost of the overall PV microinverter. This Ph.D. dissertation proposes an APD converter circuit suitable for PV microinverters, designed for optimized efficiency, power density, and cost. The proposed APD converter is controlled to achieve good power decoupling …
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A stacked full-bridge microinverter topology for photovoltaic applications
Previous work has been done to develop a microinverter for solar photovoltaic applications consisting of a high-frequency series resonant inverter and transformer section connected to a a cycloconverter that modulates the resonant current into a single-phase 240 VRMS utility line. This thesis …
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Reactive power support capability of flyback microinverter with pseudo-dc link
The flyback micro-inverter with a pseudo-dc link has traditionally been used for injecting only active power in to the power distribution network. In this thesis, a new approach will be proposed to control the micro-inverter to supply reactive power to the grid which is important for grid voltage …
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Integration and optimization of new technology for building integrated PV systems
… fotovoltaici. La seconda parte si focalizza sui microinverter e le differenze rispetto l'inverter di stringa. Analisi sono state fatte su svariati sistemi con differenti caratteristiche di orientamento ed ombreggiamento. Le analisi mostreranno che i microinverter possono incrementare la …
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DC-DC Converter Control System for the Energy Harvesting from Exercise Machines System
… to DC-DC converters, which then connects to the microinverters. All microinverter outputs tie together and then connect to the grid. The control system, placed around the DC-DC converters, quickly detects changes in current, and limits the current to prevent the DC-DC converters and …
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Power electronics solutions for uninterrupted power supply and grid-tie inverters
… Uninterrupted Power Supply (UPS), and a grid-tie microinverter. The first topic will discuss an on-line transformerless UPS system based on the integrated power electronics converters that is able to control the input power factor, charge the battery, and guarantee backup operation of the system. …
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Comparison and Design of High Efficiency Microinverters for Photovoltaic Applications
… Another advantage of the single panel DC-AC microinverter power conversion stage is that the outputs are parallel connected to the utility grid easily allowing the ability to expand the system without having to shut down the entire system. The most prevalent implementation of the …
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Energy Harvesting from Exercise Machines: Comparative Study of EHFEM Performance with DC-DC Converters and Dissipative Overvoltage Protection Circuit
… circuit, a DC-DC converter, and a DC-AC microinverter with an available elliptical trainer modified to include an energy converting circuit. The initial expectation was that a DC-DC converter would increase, when averaged over time, the overall energy conversion efficiency of the EHFEM …
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High efficiency DC/AC power converter for photovoltaic applications
This thesis presents the development of a microinverter for single-phase photovoltaic applications that is suitable for conversion from low-voltage (25-40V) DC to high voltage AC (e.g. 240VAC,RMS). The circuit topology is based on a full-bridge series resonant inverter, a high-frequency …
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Power Converter and Control Design for High-Efficiency Electrolyte-Free Microinverters
Microinverter has become a new trend for photovoltaic (PV) grid-tie systems due to its advantages which include greater energy harvest, simplified system installation, enhanced safety, and flexible expansion. Since an individual microinverter system is typically attached to the back of a PV module, …
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High Temperature Silicon Carbide Mixed-signal Circuits for Integrated Control and Data Acquisition
… controller for a DC-DC flyback converter in a microinverter application. The 8-bit SAR ADC and the 8-bit R-2R ladder DAC open up the possibility of a remote data acquisition and control system in high temperature environments. The circuits and systems presented here offer a gateway to great …
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Modeling and control of an alternating-current photovoltaic module
… embodying a small inverter, often called a microinverter. AC PV modules provide simpler, faster, and less expensive installation. Unlike typical inverters, microinverters are more reliable and robust and do not have to be replaced once or twice over the lifetime of the system. The …
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A High-efficiency Isolated Hybrid Series Resonant Microconverter for Photovoltaic Applications
… the PV modules to the utility grid. Single-phase microinverters are commonly used to integrate the power to utility grid in modular power conditioning system. In the two-stage microinverter, each PV module is connected with a power converter which can transfer higher output power due to the …
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Methods for increasing energy harvest with PV module integrated power converters
Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2013-11-26T19:17:48Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Ehlmann_Jonathan.docx: 3894710 bytes, checksum: 2990a0f32fd3242a4a70f2e75463a6c7 (MD5) Ehlmann_Jonathan.pdf: 1021930 …