A new UPS topology employing a PFC boost rectifier cascaded high-frequency tri-port converter

被引：33

作者：

Lee, JY ^{[1
]}

Chang, YH

Liu, FY

机构：

[1] Natl Cheng Kung Univ, Dept Elect Engn, Tainan 701, Taiwan

[2] Delta Elect Inc, UPS Engn Dept, Taoyuan Shien, Taiwan

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 1999年 / 46卷 / 04期

关键词：

bilateral dc/ac converter; built-in uninterruptible power supply; tri-port uninterruptible power supply;

D O I：

10.1109/41.778246

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A new uniterruptible power supply (UPS) topology using the high-frequency tri-port UPS technique is proposed which presents the advantages of no-break power, low cost, input unity power factor, high power density, and high power conversion efficiency. Through the proposed circuit configuration, charging concept, and control strategy, the battery management is easily obtained by controlling the output voltage of the power-factor-correction (PFC) converter, which results in no additional power device being required for charging. The implementing circuit of the charging method is submitted to perform the two-stage charging, constant current charging, and constant voltage charging. The proposed technologies can be applied to the switching power supply with built-in UPS function featuring a low-cost solution for computer equipment. Finally, an experimental ac online UPS is built to verify the proposed concept, analysis, and control strategy.

引用

页码：803 / 813

页数：11

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