Open AccessA new approach to three-phase asynchronous motor model for electric power system analysis
Author(s) -
Laura Collazo Solar,
Ángel A. Costa Montiel,
Miriam Vilaragut Llanes,
Vladimir Sousa Santos
Publication year - 2021
Publication title -
international journal of power electronics and drive systems/international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
eISSN - 2722-2578
pISSN - 2722-256X
DOI - 10.11591/ijpeds.v12.i4.pp2083-2094
Subject(s) - control theory (sociology) , voltage , ac power , electric power system , power (physics) , computer science , induction motor , asynchronous communication , electrical load , variable (mathematics) , engineering , electrical engineering , mathematics , physics , computer network , control (management) , quantum mechanics , artificial intelligence , mathematical analysis
In this paper, a new steady-state model of a three-phase asynchronous motor is proposed to be used in the studies of electrical power systems. The model allows for obtaining the response of the demand for active and reactive power as a function of voltage and frequency. The contribution of the model is the integration of the characteristics of the mechanical load that can drive motors, either constant or variable load. The model was evaluated on a 2500 kW and 6000 V motor, for the two types of mechanical load, in a wide range of voltage and frequency, as well as four load factors. As a result of the evaluation, it was possible to verify that, for the nominal frequency and voltage variation, the type of load does not influence the behavior of the powers and that the reactive power is very sensitive to the voltage variation. In the nominal voltage and frequency deviation scenario, it was found that the type of load influences the behavior of the active and reactive power, especially in the variable load. The results demonstrate the importance of considering the model proposed in the simulation software of electrical power systems.