유도전동기 벡터제어 시스템의 시간지연 보상

Time Delay Compensation of Induction Motor Vector Control System

  • 박철우 (경북대학교 전자공학과) ;
  • 최연호 (경북대학교 전자공학과) ;
  • 임성운 (경일대학교 제어계측공학과) ;
  • 윤경섭 (거창전문대학교 컴퓨터응용전자과) ;
  • 권우현 (경북대학교 전자공학과)
  • 발행 : 2000.10.01

초록

It is proposed that a novel method which can compensate the time delay occurs in overall system, when voltage and current is measured, owing to LPF, hysteresis control inverter and microprocessor program computation time. The Proposed scheme estimates the time delay using the difference between Q-axis stator current command and time delayed Q-axis stator current in synchronous reference frame, and compensates the time delay of voltage and current using angular displacement of DQ transformation. The proposed scheme compensates accurately the time delay occurs in overall system. Therefore performance of vector control system is improved highly and it is verified by simulation and experiment.

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