Advanced Engineering Research (Oct 2012)

GENERATION FEATURES OF CYCLE OPERATIONS FOR PRODUCTION MACHINE VARIABLE-FREQUENCY DRIVE IN LOW-VELOCITY ZONE OF ACTUATOR

  • Nikolay F. Karnaukhov,
  • Maxim N. Filimonov,
  • Andrey I. Izyumov

Journal volume & issue
Vol. 12, no. 6
pp. 76 – 86

Abstract

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The step change of the autonomous voltage inverter carrier frequency is proposed for operating enhancement of the frequency-controlled electric drive of the production machines in the «retarted and creeping» motion speed area. The introduction of the double-triple carrier frequency «submodulation» allows providing the induction motor stator current with nonsinusoidality ratio at least 4,3 % which aids the steady motion of the actuator and accuracy increase of its stop block in the positioning zone.

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