Generation of Multisinusoidal Test Signals for the Identification of Synchronous-Machine Parameters by Using a Voltage-Source Inverter

Tine Vandoorn, Frederik De Belie, Thomas Vyncke, Jan Melkebeek, Philippe Lataire

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

With the standstill frequency-response (SSFR) test, accurate electrical-machine models can be identified. However, it can be a time-consuming method, particularly in case the machine has to be identified at low frequencies. To shorten the required time for identification, in this paper, the response on a broadband signal is measured, resulting in a multisine SSFR test. To generate the broadband signal, a high-power linear amplifier can be applied as a waveform generator. As this signal generator is not commonly available in the field, the application of a voltage-source inverter (VSI) is discussed. The multisine SSFR test with a VSI allows swift evaluation of the influence of frequency, saturation, and cross saturation on the q- and d-axis parameters with a signal generator that is often already available to control the machine. Extensive measurements are performed on several permanent-magnet synchronous machines and the method can be extended to synchronous machines with rotor-field winding. By applying a switching converter instead of a linear amplifier, it can be expected that the identification results are affected by the switching actions. Therefore, multisine SSFR tests with either a VSI or a high-power linear amplifier as well as conventional tests as described in the IEEE standard are performed, and the results are compared.
Original languageEnglish
Pages (from-to)430-439
Number of pages10
JournalIEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume57
Issue number1
Publication statusPublished - Jan 2010

Keywords

  • FREQUENCY-RESPONSE TESTS
  • ONLINE IDENTIFICATION
  • SENSORLESS CONTROL
  • INDUCTION-MOTORS
  • SATURATION
  • STATOR
  • INDUCTANCE
  • DRIVES

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