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Please use this identifier to cite or link to this item: http://hdl.handle.net/1974/7076

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Title: A Parallel-Series Two Bridge DC/DC Converter for PV Power Conditioning Systems Used in Hybrid Renewable Energy Systems
Authors: Servansing, Amish Ansuman

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Keywords: MPPT
DC-Link Voltage Regulation
Decoupled Output and Input Controller
Two Degree of Freedom DC-DC Converter
Full Bridge Phase-Shift
DC/DC Converter
Renewable Energy
Issue Date: 19-Apr-2012
Series/Report no.: Canadian theses
Abstract: This thesis presents a parallel-series two-bridge DC/DC converter topology with the ability to operate with ZVS over a wide input and load range. The intended application is power conditioning systems (PCS) of photovoltaic (PV) arrays used in hybrid renewable energy system architectures. The proposed topology provides two degrees of freedom which allows the PV-PCS to regulate the DC-link voltage, while tracking the maximum power point (MPP) of the PV array. This topology distributes the main power into two bridges and the phase-shift between the two bridges and provides another degree of freedom for the PCS to track the MPP. The proposed topology is also able to achieve soft-switching over a wide range. The power conditioning system shows a modular structure to efficiently transfer the power to the load as the main power is divided between two bridges. In addition, the proposed control scheme provides complete decoupling between the input side controller from the output side controller in order to perform MPPT and regulate the the DC-link voltage simultaneously. A 2kW Experimental prototype has been provided to validate the feasibility and performance of the converter. Experimental results prove that the converter is able to regulate the DC-link voltage and track the maximum power extracted from the PV array simultaneously.
Description: Thesis (Master, Electrical & Computer Engineering) -- Queen's University, 2012-04-18 19:51:43.405
URI: http://hdl.handle.net/1974/7076
Appears in Collections:Queen's Graduate Theses and Dissertations
Department of Electrical and Computer Engineering Graduate Theses

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