Efficiency Enhancement of Flexible Mode Bridgeless Boost Rectifier
S. Nagaraj1, R. Ranihemamalini2, L. Rajaji3

1S.Nagaraj*, Research Scholar, Department of EEE, St. Peter’s Institute of Higher Education and Research, Avadi, Chennai, India,
2R.Ranihemamalini, Professor and Head, Department of EEE, St. Peter’s Institute of Higher Education and Research, Avadi, Chennai, India.
3L.Rajaji, Principal, ARM College of Engineering and Technology, Chennai, India.

Manuscript received on November 15, 2019. | Revised Manuscript received on 20 November, 2019. | Manuscript published on December 10, 2019. | PP: 1503-1508 | Volume-9 Issue-2, December 2019. | Retrieval Number: B7129129219/2019©BEIESP | DOI: 10.35940/ijitee.B7129.129219
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Most of the devices in power system become faulty due to the large content of harmonics present in voltage and current. It is mainly caused by the conduction losses in the system. At first, it is necessary to determine the extent of harmonic present by calculating the total harmonic distortions i.e., root over sum of the integral harmonics divide by fundamental harmonic. Later, identification of type of method for reducing harmonics is essential. In this project we are mainly focusing on two types of PFC bridge boost rectifier to improve the efficiency for low and high input voltage range. It using back to back bridgeless PFC boost rectifier for high input voltage and for low input voltage range, three level bridgeless boost rectifiers respectively. Fast recovery diode instead of normal diodes for better reliability and efficiency is utilized. The end model is obtained by combining two circuits BTBBL (Back to back bridgeless boost PFC) and TLBL (Three level bridgeless boost PFC) to get the FMBL (Flexible mode bridgeless boost PFC). Due to presence of less no of components, conduction losses are less hence less distortion is observed with improved efficiency. A simulation is carried out for all three models using MATLAB Simulink platform. In hardware, TLP250 driver for MOSFET is used and which is interfaced with PIC microcontroller. The hardware results are obtained that validates the simulation results. 
Keywords: Harmonic Distortion, Bridgeless Boost Converter, Multi-level Converter.
Scope of the Article: Multi-Agent Systems