Novel control strategy for parallel operation of UPS system

被引：0

作者：

Lee, WC ^{[1
]}

Lee, SH ^{[1
]}

Kim, KH ^{[1
]}

Hyun, DS ^{[1
]}

机构：

[1] Hankyong Natl Univ, Dept Elect Engn, Ansung, Kyonggi, South Korea

来源：

IPEMC 2004: THE 4TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE, VOLS 1-3, CONFERENCE PROCEEDINGS | 2004年

关键词：

parallel operation; uninterruptible power supply; load-sharing control;

D O I：

暂无

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 parallel operation system of multiple UPS is used to increase power capacity of the system or to secure higher reliability at critical loads. In the parallel operation of UPS inverters, the load-sharing control to maintain the current balance between them is a matter of consequence. Because a UPS has low output impedance and quick response characteristics, in case of an unbalanced load inverter output current changes very rapidly and thereby could instantaneously reach an overload condition. In this paper, a highly precise load-sharing controller is proposed and implemented for the parallel operation system of two UPSs. After that, a good performance of the proposed method is verified by simulation in the parallel operation system with two UPS inverters.

引用

页码：983 / 988

页数：6

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