Investigation and comparison of system efficiency on the PMSM considering Nd-Fe-B magnet and Ferrite magnet

Author

Sun, Tao ; Kwon, Soon O. ; Lee, Jeong Jong ; Hong, Jung Pyo

Author_Institution

Dept. of Automotive Eng., Hanyang Univ., Seoul, South Korea

fYear

2009

fDate

18-22 Oct. 2009

Firstpage

1

Lastpage

6

Abstract

This paper studies the influence of permanent magnet on the total system efficiency of permanent magnet synchronous motors (PMSM). Two PMSM with Nd-Fe-B and Ferrite magnets which have same back-EMF and output power have been designed. First, the dynamic simulation is performed with these two motors´ parameters. The current waveforms and switching losses of transistors can be evaluated. And then, by means of the obtained current waveforms and a series of numerical methods, the iron losses of these two motors will be calculated. Finally, comparing the sum of the switching losses and iron losses, the result can be used to reflect the influence of the magnet on the total motor system efficiency.

Keywords

ferrites; numerical analysis; permanent magnet motors; synchronous motors; Ferrite magnet; Nd-Fe-B magnet; back-EMF; current waveforms; iron losses; numerical methods; permanent magnet synchronous motors; switching losses; system efficiency; Boron alloys; Costs; Demagnetization; Ferrites; Iron; Magnetic flux; Permanent magnet motors; Power generation; Switching loss; Synchronous motors;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 2009. INTELEC 2009. 31st International

Conference_Location

Incheon

Print_ISBN

978-1-4244-2490-0

Electronic_ISBN

978-1-4244-2491-7

Type

conf

DOI

10.1109/INTLEC.2009.5352091

Filename

5352091