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This document presents a new sensorless speed vector controller for an inverter-driven synchronous reluctance motor (Syncrel). It uses a parameter-dependent technique to estimate rotor position and angular velocity in real-time at the control rate. The estimates are fed into a closed-loop observer to predict new position and velocity. Experimental results confirm the very high accuracy of the sensorless control algorithm at both low and high speeds. It overcomes limitations of prior methods such as modest p

Author

Uma Sathyadevan

Language

EN