Open AccessImproved Power Quality Switched Mode Power Supply Using Buck-Boost Converter
Author(s) -
P Hariharan,
K. RanjithKumar
Publication year - 2021
Publication title -
international journal of advanced research in science, communication and technology
Language(s) - English
Resource type - Journals
ISSN - 2581-9429
DOI - 10.48175/ijarsct-1487
Subject(s) - power factor , buck converter , boost converter , switched mode power supply , buck–boost converter , converters , computer science , electronic engineering , harmonics , control theory (sociology) , rectifier (neural networks) , power (physics) , engineering , electrical engineering , voltage , physics , control (management) , quantum mechanics , artificial intelligence , stochastic neural network , machine learning , recurrent neural network , artificial neural network
In this work, The devices generally used in industrial, commercial and residential applications need to undergo rectification for their proper functioning and operation. The operation of the buck– boost converter in discontinuous conduction mode ensures inherent PFC operation and reduces complexity in control. Hence there is a need to reduce the line current harmonics so as to improve the power factor of the system. This has led to designing of Power Factor Correction circuits. This concept presents a power factor corrected (PFC) Buck–Boost converter-fed SMPS. This project deals with the design, analysis, simulation, and development of a power-factor-correction (PFC) multiple output switched-mode power supply (SMPS) using a Buck–Boost converter at the front end. Single-phase ac supply is fed to a pair of back-to-back connected buck–boost converters to eliminate the diode bridge rectifier, which results in reduction of conduction losses and power quality improvement at the front end. To observe the performance of this converter, a model based on the Buck Boost topology has been designed and developed software and implemented with Proportional-Integral (PI) and Fuzzy logic controller. The simulations are demonstrated in order to validate the effectiveness of the controllers in power factor improvement. By using MATLAB.