Scientific and Technical Journal


ISSN Print 2221-3937
ISSN Online 2221-3805
Online machine parameter estimation for Direct Torque control
For DTC control monitoring the actual value of stator resistance is important. Based on previous investigations it is shown that the accuracy of online stator resistance monitoring of AC-machines fed by PWM inverters when using the superposition method suffers from dead time effects. A new and simple correction procedure is proposed to achieve high measurement accuracy without using temperature sensors. No additional hardware is required for this method. Experimental results are presented.
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