제어로봇시스템학회:학술대회논문집
- 2000.10a
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- Pages.231-231
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- 2000
Time Delay Compensation of Induction Motor Vector Control System
유도전동기 벡터제어 시스템의 시간지연 보상
Abstract
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.