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http://dx.doi.org/10.5370/JEET.2010.5.3.468

Direct Single-stage Power Converter with Power Factor Improvement for Switched Mode Power Supply  

Kalpana, R. (Department of Electrical Engineering, Indian Institute of Technology)
Singh, Bhim (Department of Electrical Engineering, Indian Institute of Technology)
Bhuvaneswari, G. (Department of Electrical Engineering, Indian Institute of Technology)
Publication Information
Journal of Electrical Engineering and Technology / v.5, no.3, 2010 , pp. 468-476 More about this Journal
Abstract
This paper presents a direct single-stage power converter using single-phase isolated full-bridge converter modules, with inherent power factor correction (PFC) for a 12 kW switched mode power supply (SMPS). The advantages of the proposed converter are its simple control strategy, reduction in number of conversion stage, low input line current harmonics, and improvement in power factor. Analysis of the single-stage converter is carried out in continuous conduction mode of operation. Steady-state analysis of the proposed converter is conducted to obtain converter parameters. A systematic design procedure is also presented for a 12k W converter with a design example. The effect of load variation on SMPS is also studied in order to demonstrate the effectiveness of the proposed converter for the complete range of load conditions. A set of power quality indices on input ac mains for an SMPS fed from a single-stage converter is also presented for easy comparison of their performance.
Keywords
Single-stage; Power factor correction (PFC); Three-phase converter; Full-bridge converter; SMPS;
Citations & Related Records

Times Cited By SCOPUS : 4
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