Title :
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
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;
Conference_Titel :
Electrotechnical Conference, 1994. Proceedings., 7th Mediterranean
Conference_Location :
Antalya
Print_ISBN :
0-7803-1772-6
DOI :
10.1109/MELCON.1994.380826
