Autoconnected-Transformer-Based 20-Pulse AC-DC Converter for Telecommunication Power Supply

被引：48

作者：

Kalpana, R. ^{[1
]}

Bhuvaneswari, G. ^{[1
]}

Singh, Bhim ^{[1
]}

Singh, Shikha ^{[1
]}

Gairola, Sanjay ^{[2
]}

机构：

[1] Indian Inst Technol Delhi, Dept Elect Engn, New Delhi 110016, India

[2] Noida Inst Engn & Technol, Greater Noida 201306, India

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2013年 / 60卷 / 10期

关键词：

AC-DC converter; autoconnected transformer; power quality improvement; switched-mode power supplies (SMPSs); 20; pulses; PASSIVE FILTERS; RECTIFIER;

D O I：

10.1109/TIE.2012.2210373

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, an autoconnected-transformer-based 20-pulse ac-dc converter is proposed for harmonic current reduction in switched-mode power supplies (SMPSs) of moderate rating (10-15 kW). The proposed ac-dc converter is realized with a fractional magnetic rating of the load. The supply current is nearly sinusoidal with low total harmonic distortion, and the power factor is close to unity. A set of power quality indices at three-phase utility for an SMPS is presented for both 20- and 6-pulse converters to compare their performances. It is determined that the power quality indices at ac mains with a 20-pulse converter meet IEEE Standard 519 even at varying loads. A laboratory prototype of an autoconnected-transformer-based 20-pulse ac-dc converter has been designed and developed to validate the findings from simulation. Various tests have been conducted on it, and the test results conform to the simulation results.

引用

页码：4178 / 4190

页数：13

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