FPGA realization of line-interactive uninterruptible power supply

Shyh-Jier Huang, Chia Hung Sun, Tsong Shing Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A novel design of line-interactive uninterruptible power supplies is proposed in this paper. In the designated circuit, by utilizing single-stage power converter, the system can be operated either in the active power filter mode or in the voltage-stabilizing mode based on the operating state of mains power. When the system is operated at the active power filter mode, both the harmonic reduction and reactive power compensation can be achieved via a set of current feedback signals. When the system is operated at the voltage-stabilizing mode, by deeming the capacitor current as the control variable, the first-order current control method can be formulated such that the system stability is maintained while the speed response is significantly improved, With the aid of the FPGA in the digital design, it is found that the hardware circuit can be realized within a shorter time and the design cost can be also lowered down. This proposed system has been validated by theoretical analysis and experimental realization. Test results support the feasibility of the proposed approach for the application considered.

Original languageEnglish
Title of host publication5th International Conference on Power Electronics and Drive Systems, PEDS 2003 - Proceedings
EditorsKing-Jet Tseng
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages376-379
Number of pages4
ISBN (Electronic)0780378857
DOIs
Publication statusPublished - 2003 Jan 1
Event5th International Conference on Power Electronics and Drive Systems, PEDS 2003 - Singapore, Singapore
Duration: 2003 Nov 172003 Nov 20

Publication series

NameProceedings of the International Conference on Power Electronics and Drive Systems
Volume1

Other

Other5th International Conference on Power Electronics and Drive Systems, PEDS 2003
CountrySingapore
CitySingapore
Period03-11-1703-11-20

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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