info:eu-repo/semantics/article
Efficiency assessment of induction motors drives operating under shaft misalignment conditions
Fecha
2020-09Registro en:
Verucchi, Carlos; Giraldo Salazar, Esteban Elias; Meira, Matias; Ruschetti, Cristian Roberto; Bossio, Jose Maria; et al.; Efficiency assessment of induction motors drives operating under shaft misalignment conditions; Technical University of Ostrava; Advances in Electrical and Electronic Engineering; 18; 3; 9-2020; 142-152
1336-1376
1804-3119
CONICET Digital
CONICET
Autor
Verucchi, Carlos
Giraldo Salazar, Esteban Elias
Meira, Matias
Ruschetti, Cristian Roberto
Bossio, Jose Maria
Bossio, Guillermo Rubén
Resumen
Historically, the negative effects of misalignment between the motor shaft and the load on the electric drives are well known. Vibrations, loss of life of couplings and deterioration of efficiency are some of these effects. Regarding this last point, the literature offers contradictory opinions. Some studies consider that the loss of efficiency in cases of misalignment is undesirable; while others consider that it has significant importance. In this paper, experimental results show in which cases the misalignment has a significant effect on efficiency and in which cases it can be neglected. For this, radial and angular misalignment cases are stud-ied with four of the most used flexible couplings in the industry. The obtained results are analysed in relation to the actual regulations on energy efficiency in induction motors. The reached conclusions offer new tools for the correct selection of flexible couplings tending to the improvement of energy efficiency.