AN AC-DC SINGLE STAGE FULL BRIDGE HYBRID CONVERTER WITH IMPROVED OUTPUT CHARACTERISTICS
Author(s):
G.Irin Loretta, S.L.Sreedevi
Keywords:
Pulse Width Modulation(PWM), MOSFET, Optocoupler, microcontroller, matlab.
Abstract
This paper explains about a new auxiliary circuit for an ac-dc single-stage power factor corrected (SSPFC) full-bridge type converter. The new auxiliary circuit is simple, handles low power, and is active only when the converter is operating under light load conditions.The operation of a SSPFC converter is briefly reviewed and the main principle behind the auxiliary circuit is explained. The new auxiliary circuit is introduced, and its feasibility in a multilevel SSPFC is confirmed with experimental results. This project proposes a unique standalone hybrid power generation system, applying advanced power control techniques, fed by four power sources: wind power, solar power, storage battery, and diesel engine generator, and which is not connected to a commercial power system. This configuration allows the two sources to supply the load separately or simultaneously depending on the availability of the energy sources. The inherent nature of this converter, additional input filters are not necessary to filter out high frequency harmonics. Harmonic content is detrimental for the generator lifespan, heating issues, and efficiency.
Article Details
Unique Paper ID: 155826

Publication Volume & Issue: Volume 9, Issue 2

Page(s): 45 - 48
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