Unity power factor operation of three-phase AC-DC converter based on modular approach for telecom applications

Kalpana, R. ; Singh, Bhim ; Bhuvaneswari, G. (2012) Unity power factor operation of three-phase AC-DC converter based on modular approach for telecom applications In: IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2012, 16-19 Dec. 2012, Bengaluru, India.

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Official URL: http://ieeexplore.ieee.org/document/6484285/

Related URL: http://dx.doi.org/10.1109/PEDES.2012.6484285

Abstract

High power telecommunication power supply systems consist of a three-phase switch mode converter followed by a dc-dc converter to supply 12kW SMPS. These rectifiers draw significant harmonic currents from the utility, resulting in poor input power factor with high total harmonic distortion (THD). In this paper, a three-phase ac-dc converter based on modular approach is proposed for telecommunication applications. The proposed system is formed by three single-phase modules with series connected dc outputs to increase the power level. The series connection of converter yields balanced three phase currents and galvanic isolation with the use of a high frequency transformer, and provides 6-pulse rectification, both together resulting in a smaller output filter components. A design example and simulation results are presented to validate the model of the proposed three-phase 12-kW SMPS converter.

Item Type:Conference or Workshop Item (Paper)
Source:Copyright of this article belongs to Institute of Electrical and Electronics Engineers.
Keywords:SMPS; Modular AC-DC Converter, Unity Power Factor (UPF), Push-Pull Boost Converter
ID Code:110449
Deposited On:04 Aug 2017 12:19
Last Modified:04 Aug 2017 12:19

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