DC – DC BOOST CONVERTER FOR HYBRID PV / FC / BATTERY POWER SYSTEM
Author’s Name : C Gokul Kumar
Volume 03 Issue 04 Year 2016 ISSN No: 2349-2503 Page no: 1-11
The three input dc-dc boost converter interfaces two unidirectional input power ports and a bidirectional port for a storage element in a unified structure. This converter is interesting for hybridizing alternative energy sources such as photovoltaic (PV) source, fuel cell (FC) source, and battery. Supplying the output load, charging or discharging the battery can be made by the PV and the FC power sources individually or simultaneously. This structure utilizes only four power switches that are independently controlled with four different duty ratios. Utilizing these duty ratios, tracking the maximum power of the PV source, Setting the FC power, controlling the battery power, and regulating the output voltage are provided. Depending on utilization state of the battery, three different power operation modes are defined for the converter. The aim of this project is to produce power for remote areas and to reduce the power demand to the consumer by the help of solar PV Panels, Fuel Cell and Battery. In order to design the converter control system, small-signal model is obtained in each operation mode. The control performances are verified by simulation for different operating conditions.
PV system, Fuel cell, Electrolyzer, DC/DC Boost Converter
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