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Flux observation model of induction motor based on stator flux oriented vector control

  • Qingyu Deng*
  • , Xiaozhong Liao
  • , Lei Dong
  • , Liwei Shao
  • *Corresponding author for this work
  • Beijing Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

Several kinds of methods in stator flux observation of induction motor are compared. As the DC offset and phase lag problem are caused by a pure integrator or a single-stage low-pass filter. The problem of voltage model of flux estimation is disturbed by variation of stator resistance particularly in the low-speed range. The current model is introduced to compensate the voltage model. It is suggested that a novel voltage-current flux observation model based on cascaded low-pass filter with programmable cut-off frequency and gain. The results of simulation and experiment validated the new model by a preferable flux estimation effect and robustness under variation of stator resistance in whole-speed range.

Original languageEnglish
Pages (from-to)30-34
Number of pages5
JournalDiangong Jishu Xuebao/Transactions of China Electrotechnical Society
Volume22
Issue number6
Publication statusPublished - Jun 2007

Keywords

  • Flux observation
  • Induction motor
  • Stator flux orientation
  • Vector control

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