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Field-Oriented Control of a Nine-Phase Cage Induction Generator with Large Speed Changes and Variable Load

Author

Listed:
  • Dariusz Cholewa

    (Faculty of Electrical and Computer Engineering, Cracow University of Technology, Warszawska 24 Str., 31-155 Cracow, Poland)

  • Piotr Drozdowski

    (Faculty of Electrical and Computer Engineering, Cracow University of Technology, Warszawska 24 Str., 31-155 Cracow, Poland)

Abstract

This paper presents a voltage control system for multiphase squirrel-cage induction generators operating at a high variability of speed and variable load. Field-oriented vector control was used with a change in the sequence of the stator phase currents what changes the number of poles of the magnetic field produced by nine-phase stator winding. At low speeds, the current sequence is changed so that the number of poles increases allowing for the desired voltage to be obtained with greater efficiency. The task of the automatic control system was to control the DC voltage to a desired value at the output of the multiphase PWM converter. This is an alternative control method to the scalar control of voltage and frequency presented in a previous work. The control method and parameters of the automatic control system result from the mathematical model of the multiphase induction machine. The results of the laboratory tests were compared with the effects of the operation of the same nine-phase scalar controlled generator.

Suggested Citation

  • Dariusz Cholewa & Piotr Drozdowski, 2024. "Field-Oriented Control of a Nine-Phase Cage Induction Generator with Large Speed Changes and Variable Load," Energies, MDPI, vol. 17(4), pages 1-25, February.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:4:p:790-:d:1334671
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