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The First IEEE International Workshop on Electronic Design, Test and Applications (DELTA '02)
Sensorless Speed Control in Induction Motor Drives
Christchurch, New Zealand
January 29-January 31
ISBN: 0-7695-1453-7
William Phipps, Eastern Institute of Technology
Ibrahim Al-Bahadly, Massey University
This paper describes a method o sensorless speed estimation that is low cost and easy to implement. It uses two different algorithms,and so compensates or the weaknesses of the individual algorithms producing a robust low lost application. A method is investigated that uses the rotor slot harmonics to estimate the speed o the motor above 300rpm. At lower speeds the rotor slot harmonic method becomes unreliable,due to the difficulty in detecting the harmonics at lower speeds. A slip detection method,using an empirical ormula is to be used during the speed "blind spot ",providing speed estimation and so increasing the dynamic range of the system as a whole.
Citation:
William Phipps, Ibrahim Al-Bahadly, "Sensorless Speed Control in Induction Motor Drives," delta, pp.480, The First IEEE International Workshop on Electronic Design, Test and Applications (DELTA '02), 2002
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