Synchronous and asynchronous generators frequency and harmonics behavior after a sudden load rejection

Vladimir V. Terzija, Magnus Akke

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

This paper describes load rejection tests, done at two hydro power plants in Sweden, one equipped with synchronous and the other with asynchronous generators. During the tests voltages and currents are digitized, recorded and thereafter off-line processed. By this, in the processing of distorted and fast parameter-varying voltages and currents the powerful estimation technique, the Newton Type Algorithm, is applied. It was intended to investigate the frequency changes and the distortions of the measured signals. The transient processes at both generators are compared. In particular, the frequency changes after the instance of load rejection are investigated and discussed from the signal processing and physical nature point of view.

Original languageEnglish
Pages (from-to)730-736
Number of pages7
JournalIEEE Transactions on Power Systems
Volume18
Issue number2
DOIs
Publication statusPublished - May 2003
Externally publishedYes

Keywords

  • Asynchronous generator
  • Estimation techniques
  • Frequency
  • Synchronous generator
  • Transient analysis

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