Stability improvement of constant voltage transformer for triport UPS system

K. Harada, Y. Ji, Yoshinori Katayama, C. J. Chen, T. Nakamizo

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

A novel method for improving the stability of the AVR (automatic voltage regulator) constant voltage transformer for triport UPS (uninterruptible power supply) systems is introduced. An active filter with an operational amplifier as the feedback element for controlling the AVR is shown to reduce the system instability; this device is more compact and economical than the alternative magnetic feedback amplifier. Experimental and simulation results demonstrate the effectiveness of active filter feedback of higher order for suppressing the instability.

Original languageEnglish
Pages (from-to)536-541
Number of pages6
JournalINTELEC, International Telecommunications Energy Conference (Proceedings)
Publication statusPublished - Dec 1 1988

Fingerprint

Uninterruptible power systems
Electric power systems
Voltage regulators
Active filters
filter
Electric potential
Magnetic amplifiers
Feedback amplifiers
Feedback
Operational amplifiers
simulation
method

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Stability improvement of constant voltage transformer for triport UPS system. / Harada, K.; Ji, Y.; Katayama, Yoshinori; Chen, C. J.; Nakamizo, T.

In: INTELEC, International Telecommunications Energy Conference (Proceedings), 01.12.1988, p. 536-541.

Research output: Contribution to journalConference article

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