alexa A Single Stage Power Factor Correction For Single Phas
ISSN ONLINE(2319-8753)PRINT(2347-6710)

International Journal of Innovative Research in Science, Engineering and Technology
Open Access

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Special Issue Article

A Single Stage Power Factor Correction For Single Phase AC-DC Converter

Satheyaraj. N1, Yamuna. K2
  1. Final year M.E student, Dept. of EEE, KSR College of Engineering, Tamilnadu, India
  2. Assistant professor, Dept. of EEE, KSR College of Engineering, Tamilnadu, India
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Abstract

A Single Phase Single Stage Power Factor Corrected (SSPFC) AC/DC converter that operates with a single controller to obtain regulated dc output voltage is presented in this paper. The proposed converter integrates the operation of a boost power factor correction converter and a three-level DC/DC converter into one converter. . The existing converter has the problem of high component stress due to its three level structures. As the converter control is open loop a variable output voltage is not possible in the conventional system. The proposed system provides a closed loop control for variable output voltage. The SSPFC AC/DC converter can operate with lower peak voltage stresses across the switches and the DC bus capacitors as it is a three-level converter. This allows for greater flexibility in the design of the converter and ultimately improved performance. The output inductor of the converter can be designed to work in CCM mode over a wide range of load variation and input voltage. This results in a lower output inductor current ripple than that found in other two-level single-stage converter, which ultimately results in lower peak current stresses for the secondary components. . The operation of the converter is explained and its feasibility is confirmed with experimental result obtained from the simulation. The result shows that the new converter has better power factor for light load operation.

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