A novel design of line-interactive uninterruptible power supplies without load current sensors

Fu Sheng Pai, Shyh Jier Huang

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

In this paper, a new approach for the design of line interactive uninterruptible power supplies (UPS) without load current sensors is proposed. Based on the interactive structure, this system is constructed that includes the power factor improvement capability in anticipation of increasing the quality of supplying power. With the employment of such an approach, the power converter can be adaptively operated at the active power filter mode or backup mode, by which the power can be supplied to the connected load very reliably. Moreover, as the proposed circuit needs only one current feedback signal where the load current sensors can be saved, the circuit design can be thus simplified significantly. In order to confirm the effectiveness of this proposed design, the approach has been tested through the theoretical analysis and experimental validation under different test scenarios. Test results help support the feasibility and practicality of the method for the application considered.

Original languageEnglish
Pages (from-to)202-210
Number of pages9
JournalIEEE Transactions on Power Electronics
Volume21
Issue number1
DOIs
Publication statusPublished - 2006 Dec 1

Fingerprint

Uninterruptible power systems
Sensors
Networks (circuits)
Power converters
Feedback

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

@article{0ea2ed89628f4012a395a47e4c561d7b,
title = "A novel design of line-interactive uninterruptible power supplies without load current sensors",
abstract = "In this paper, a new approach for the design of line interactive uninterruptible power supplies (UPS) without load current sensors is proposed. Based on the interactive structure, this system is constructed that includes the power factor improvement capability in anticipation of increasing the quality of supplying power. With the employment of such an approach, the power converter can be adaptively operated at the active power filter mode or backup mode, by which the power can be supplied to the connected load very reliably. Moreover, as the proposed circuit needs only one current feedback signal where the load current sensors can be saved, the circuit design can be thus simplified significantly. In order to confirm the effectiveness of this proposed design, the approach has been tested through the theoretical analysis and experimental validation under different test scenarios. Test results help support the feasibility and practicality of the method for the application considered.",
author = "Pai, {Fu Sheng} and Huang, {Shyh Jier}",
year = "2006",
month = "12",
day = "1",
doi = "10.1109/TPEL.2005.861188",
language = "English",
volume = "21",
pages = "202--210",
journal = "IEEE Transactions on Power Electronics",
issn = "0885-8993",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "1",

}

A novel design of line-interactive uninterruptible power supplies without load current sensors. / Pai, Fu Sheng; Huang, Shyh Jier.

In: IEEE Transactions on Power Electronics, Vol. 21, No. 1, 01.12.2006, p. 202-210.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A novel design of line-interactive uninterruptible power supplies without load current sensors

AU - Pai, Fu Sheng

AU - Huang, Shyh Jier

PY - 2006/12/1

Y1 - 2006/12/1

N2 - In this paper, a new approach for the design of line interactive uninterruptible power supplies (UPS) without load current sensors is proposed. Based on the interactive structure, this system is constructed that includes the power factor improvement capability in anticipation of increasing the quality of supplying power. With the employment of such an approach, the power converter can be adaptively operated at the active power filter mode or backup mode, by which the power can be supplied to the connected load very reliably. Moreover, as the proposed circuit needs only one current feedback signal where the load current sensors can be saved, the circuit design can be thus simplified significantly. In order to confirm the effectiveness of this proposed design, the approach has been tested through the theoretical analysis and experimental validation under different test scenarios. Test results help support the feasibility and practicality of the method for the application considered.

AB - In this paper, a new approach for the design of line interactive uninterruptible power supplies (UPS) without load current sensors is proposed. Based on the interactive structure, this system is constructed that includes the power factor improvement capability in anticipation of increasing the quality of supplying power. With the employment of such an approach, the power converter can be adaptively operated at the active power filter mode or backup mode, by which the power can be supplied to the connected load very reliably. Moreover, as the proposed circuit needs only one current feedback signal where the load current sensors can be saved, the circuit design can be thus simplified significantly. In order to confirm the effectiveness of this proposed design, the approach has been tested through the theoretical analysis and experimental validation under different test scenarios. Test results help support the feasibility and practicality of the method for the application considered.

UR - http://www.scopus.com/inward/record.url?scp=33947151523&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33947151523&partnerID=8YFLogxK

U2 - 10.1109/TPEL.2005.861188

DO - 10.1109/TPEL.2005.861188

M3 - Article

AN - SCOPUS:33947151523

VL - 21

SP - 202

EP - 210

JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

SN - 0885-8993

IS - 1

ER -