Speed Estimation Based on MRAS in Vector Control System
Shen Xue-jun
Abstract
Shen Xue-jun
Abstract
The speed estimation of speed sensorless vector control system with a method of model reference adaptive system are investigated.A new-type MRAS speed estimation scheme with motor instantaneous inactive power as assist variable is presented.The simulation results show that methed's calculation amount is small,convergence of the speed is fast,and the speed is estimated accurately.
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The speed estimation of speed sensorless vector control system with a method of model reference adaptive system are investigated.A new-type MRAS speed estimation scheme with motor instantaneous inactive power as assist variable is presented.The simulation results show that methed's calculation amount is small,convergence of the speed is fast,and the speed is estimated accurately.
Key concepts: MRAS, Control theory (sociology), Vector control, Convergence (economics), Adaptive system, Computer science, Adaptive control, Electronic speed control