A universal model of three-phase asynchronous motors for electrical power system analysis

Laura Collazo Solar (Universidad Tecnológica de la Habana “José Antonio Echeverría”)
Ángel A. Costa Montiel (Universidad Tecnológica de la Habana “José Antonio Echeverría”)
Miriam Vilaragut Llanes (Universidad Tecnológica de la Habana “José Antonio Echeverría”)
Vladimir Sousa Santos (Universidad de la Costa)
Carlos de la Incera Núñez (Materiales para la Industria y la Construcción)

International Journal of Power Electronics and Drive Systems (IJPEDS)
Vol 14, No 1: March 2023

The high incidence of three-phase asynchronous motors (TAM) in global energy consumption and its influence on the operation of electrical systems makes it necessary to develop models that allow their analysis effectively. Based on this, this paper presents a universal model of TAM based on the relationship between the active and reactive power of the TAM and the deviation of voltage and frequency. It can be applied to any general-purpose TAM and is very useful when representing these motors in electrical power system studies. The model parameters were obtained from a statistical analysis performed on 70 TAM of different classifications. The results are validated by comparing them with those obtained from the solution of the equivalent circuit, demonstrating its validity by less than 6% errors.