A Parallel-Series Two Bridge DC/DC Converter for PV Power Conditioning Systems Used in Hybrid Renewable Energy Systems

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.

Department dc:contributor.department

Electrical and Computer Engineering

Year dc:date.issued

2012

Author dc:creator

• Servansing, Amish Ansuman

Advisor dc:contributor.supervisor

• Jain, Praveen K.

• MPPT
• DC-Link Voltage Regulation
• PV-PCS
• Decoupled Output and Input Controller
• Two Degree of Freedom DC-DC Converter
• Full Bridge Phase-Shift
• HRES
• DG
• DC/DC Converter
• Renewable Energy

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1974/7076

OAI identifier oai:identifier

oai:queensu.scholaris.ca:1974/7076