Naslov
Efficiency analysis by numerical calculation of moments and losses in a interior permanent magnets synchronous motor

Autori
Hederic, Zeljko ; Corluka, Venco

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), ostalo

ISBN
978-1-6654-3582-6

Skup
17th Conference on Electrical Machines, Drives and Power Systems (ELMA 2021)

Mjesto i datum
Sofija, Bugarska, 01.07.2021. - 04.07.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Torque , losses , efficiency , rotor , stator , power

Sažetak
The paper presents a dynamic model of a synchronous motor with permanent magnets located inside the rotor (SMIPM) and with a concentrated type of stator winding. In order to improve drive efficiency, the accuracy of the model was increased by including losses and nonlinear parameters of the magnetic circuit in the motor model. The main advantage of SMIPM, compared to asynchronous and commutator motors, is achieved by providing a higher magnetic flux density in the air gap with less losses, which is reflected in higher mechanical energy delivered per unit volume of the motor, or increased motor efficiency. The paper performs numerical calculations of moments and losses in the motor by the finite element method for wide current. Accurate calculation of losses in the iron core is a very complex procedure, which is why many authors usually give the mean value of magnetic induction for the entire volume of the core. The great advantage of this calculation is that it gives a real 3D image of the machine losses for all operating conditions, at different frequencies and currents in the d and q axes. Finally, an example of measured and numerically calculated torque is given to confirm the correctness of the efficiency determination method.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA