Title :
Rotor time constant adaptation method for induction motors using DC link power measurement
Author :
Ohm, Dal Y. ; Khersonsky, Yuri ; Kimzey, James R.
Author_Institution :
Baldor Electric Co., Fremont, CA, USA
Abstract :
An adaptation algorithm to compensate for the rotor resistance change on the basis of the measurement of DC link power is introduced. In comparison to other schemes which require instantaneous (sinusoidal) stator voltages and currents, the proposed scheme uses more stabilized measurement data with simpler hardware circuits. Principles of indirect vector control using an ideal current regulator and the effects of rotor time constant variations are described. Practical implementation issues and simulated results with embedded measurement error are also discussed.<>
Keywords :
induction motors; machine control; power measurement; rotors; DC link power measurement; current regulator; embedded measurement error; indirect vector control; induction motors; rotor resistance; rotor time constant; Circuits; Current measurement; Electrical resistance measurement; Hardware; Induction motors; Power measurement; Rotors; Stators; Time measurement; Voltage;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96709
