Title :
A stand-still method for estimating the rotor resistance of induction motors
Author_Institution :
Danfoss Drives A.S., Graasten, Denmark
Abstract :
A method to identify the rotor resistance of induction motors at stand-still using only a standard voltage source inverter (VSI) as both the actuator and measuring device is described. The method takes the inverter nonlinearity into account and considers the skin effect of the rotor windings. The estimation scheme controls the VSI in such a manner that no rotational shaft torque is produced, which promises for a user-friendly service during the commissioning of a drive-motor system, regardless of the mechanical load
Keywords :
electric resistance; induction motors; invertors; parameter estimation; rotors; skin effect; VSI; actuator; drive-motor system commissioning; induction motors; inverter nonlinearity; measuring device; rotor resistance estimation; rotor windings; skin effect; stand-still method; standard voltage source inverter; user-friendly service; Actuators; Control systems; Electrical resistance measurement; Induction motors; Inverters; Measurement standards; Rotors; Skin effect; Torque control; Voltage;
Conference_Titel :
Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5589-X
DOI :
10.1109/IAS.1999.801615
