Design and control considerations for slotless electronically-commutated permanent-magnet servomotors

Author

Radulescu, M.M. ; Iancu, V. ; Biro, K. ; Hedesiu, H.

Author_Institution

Fac. of Electr. Eng., Tech. Univ. Cluj-Napoca, Romania

fYear

1994

fDate

12-14 Apr 1994

Firstpage

1302

Abstract

The paper develops an analytical technique for the design and dynamic performance prediction of the special drive system consisting of a slotless-type electronically commutated permanent-magnet (ECPM) servomotor and its square-wave voltage controlled inverter. This technique is used, at first, to obtain a closed-form solution for the air gap flux distribution in the slotless ECPM servomotor, which is compared with corresponding finite-element field calculations. Then, the technique is extended to the performance analysis of the drive system, which is modelled using space-phasors for a given inverter switching pattern. The predictions from this analysis are validated against measurements

Keywords

commutator motors; invertors; motor drives; permanent magnet motors; servomotors; air gap flux distribution; design; drive system; dynamic performance prediction; electronically commutated permanent-magnet servomotor; finite-element field calculations; inverter switching pattern; losed-form solution; performance analysis; permanent-magnet servomotors; slotless servomotor; space-phasors; square-wave voltage controlled inverter; Copper; Inverters; Iron; Magnetic flux; Pattern analysis; Performance analysis; Saturation magnetization; Servomotors; Stator windings; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrotechnical Conference, 1994. Proceedings., 7th Mediterranean

Conference_Location

Antalya

Print_ISBN

0-7803-1772-6

Type

conf

DOI

10.1109/MELCON.1994.380826

Filename

380826