COMPARATIVE ANALYSIS OF SYNCHRONOUS MOTORS
Abstract
This paper compares the parameters, steady-state and transient characteristics of two different types of synchronous motors (SM) – a motor with surface mounted magnets on the rotor, and a motor with embedded magnets and squirrel cage winding, widely known as a line-start synchronous motor. The comparison is based on results obtained from analytical, numerical and transient models of both motors for the same output power of the motors. The models for obtaining transient characteristics allow comparison of acceleration of both motors taking into consideration that the line-start SM is a self-starting motor while the SM with surface magnets is always started with the aid of a PWM inverter. The results obtained from the analytical, numerical and transient models of the motors should assist in choosing the most cost-effective solution in terms of the type of the motor for the appropriate application.
Downloads
References
M. Štulrajter, V. Hrabovcová. M Franko: Permanent magnet synchronous motor control strategies, Journal of Electrical Engineering, Vol.58, Iss.2, p.p. 79‐84, 2007
E. Ojionuka, I. Chinaeke‐Ogbuka, C. Ogbuka, C. Nwosu: Simplified sensorless speed control of permanent magnet synchronous motor using model reference adaptive system, Journal of Electrical Engineering, Vol.70, Iss.6, p.p.473‐479, 2019
G. Park, G. Kim, B‐G. Gu: Sensorless PMSM inductance estimation based on the data drive approach, Electronics, Iss.10, pp.1‐19, 2021
P. Hudák, V. Hrabovcová, P. Rafajdus, J. Mihok: Core loss analysis of the reluctance synchronous motor with barrier rotors, Journal of Electrical Engineering, Vol.55, Iss.9, pp.273‐276, 2004
J. Faiz, A. M. Takbash: Derating of three‐phase squirrel cage induction motor under broken bar fault, Facta Universitatis, Series Automatic Control and Robotics, Vol.12, Iss.3, pp.147‐156, 2013
P. Pietrzak, M. Wolkiewicz: Comparison of selected methods for the stator winding condition Monitoring of a PMSM using the stator phase currents, Energies, Vol.14, 2021, pp.1‐23.
M. Mendizabal, A. McCloskey, J. Poza, S. Zarate, J. Iriondo, L. Irazu: Optimum Slot and Pole Design for Vibration Reduction in Permanent Magnet Synchronous Motors, Applied Sciences, Vol.11, 2021, pp.1‐17.
D‐C. Popa, B. Văraticeănu, D. Fodorean, P. Minciunescu, C. Martis: High speed induction motor used in electrical vehicles, Electrotehnică, Electronică Electrotehnică, (EEA), Vol.64, Iss.3, pp.5‐11, 2016
B.D. Văraticeănu, P. Minciunescu, D. Fodorean: Mechanical design and analysis of a permanent magnet rotor used in high‐speed synchronous motor, Electrotehnică, Electronică, Automatică, Vol.62, Iss.1, pp.9‐17, 2014
R. Anand, B. Gayathridev, B.K. Keshavan: Vertical Transportation: Effects of Harmonics of Drives by PM Machines, Power Electronics and Drives, Vol.3(38), No.1, 2018, pp.47‐ 53.
Končar‐Mes. Available: https://koncar‐mes.hr/wp‐content/uploads/2020/08/Electric‐motors.pdf (29.10.2021)
