Abstrait

Design and Implementation of SEPIC and Boost Converters for Wind and Fuel cell Applications

S.Venkatanarayanan, M.R.M. Nanthini

Electricity demand is the major concern in the world today. To meet the demand, the number of natural sources comes under the electricity production. Among that sources wind energy and fuel cell energy is considered in this paper. The Single-Ended Primary- Inductor Converter (SEPIC) and Boost converter are used with the wind energy and fuel cell energy conversion system for the improvement of power generation. The DC-DC converters are typically used in the applications where the output voltage is considerably higher than the input voltage. Basic objective of this paper is parallel connected SEPIC-Boost converters to share the load current. The approach of varying complexity and current sharing performance has been proposed. The advantage of parallel connected power supply is low component stress, increased reliability, ease of maintenance and repair, thermal management. The presence of current sharing loop has been clearly proved for achieving good performance in paralleling of these converters. A MATLAB Simulink has been developed and compared with the single and parallel schemes and also verified the performance. A 230V/250W paralleling scheme is developed for wind and Fuel cell as parallel connected source and verified the results.