Modelling of Squirrel-cage Induction Motors for Electromagnetic Transient Programs
Location: United Kingdom
Publication date: 2009-03-04
Published in: IET electric power applications, March 2009
ref. DOI: 10.1049/iet-epa:20080043

Local members

Jose Ignacio Candela

PhD. Senior Researcher. Project Responsible

External members

Pedra, J., Sainz, L.



The authors discuss the modelling of the squirrel-cage induction motor. The experimental measurements on motors of different rated power, 1-90 kW, clearly show that the single-cagemodel does not fit the torque-speed curve adequately. Consequently, when the speed varies in a wide range, only the double-cage model can fit the curve well with the squirrel-cage inductionmotor. The equivalence between the two most commonly used double-cage models in the literature is studied, and a method to find the equivalent parameters is developed. In addition, the induction motor modelling in the PSCAD/EMTDC and EMTP-RV simulation programs is examined, and the inaccuracies resulting from the use of manufacturer data are discussed.