Permanent magnet polyphase synchronous machine

Details Permanent magnet polyphase synchronous machine Permanent magnet polyphase synchronous machine

1990-04-04

1991-11-19

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310162, 310179, 310258, 310261, H02K 2112

Patent

active

050668803

ABSTRACT:
The permanent magnet synchronous electrodynamic machine comprises a rotor (5) of the flux concentration type including a shaft or hub (15) made from a non-magnetic material on which rest parallel-sided radial permanent magnets (12) between which are disposed polar pieces (14) made from a ferro-silicon magnetic sheet, and a stator (2) comprising a frame made from ferro-silicon magnetic sheet in which are formed a plurality of semi-closed notches (10) delimited by a stator yoke (11) and receiving induction coils (9), the rotor defining with the rotor (5) an air gap (6). The magnets (12) are of the ferrite type and the ratio r1 of the height of the section of a magnet (12) through which the induction flux passes divided by the bore diameter of the air gap is between 0.19 and 0.27.

REFERENCES:
patent: 3242364 (1966-03-01), Johnson
patent: 4336649 (1982-06-01), Glaser
patent: 4658167 (1987-04-01), Popow et al.
patent: 4700097 (1987-10-01), Kawada et al.
patent: 4709179 (1987-11-01), Banon et al.
Siemens Review, XLIII, 1976, No. 6, pp. 248-254, Erlangen, Germany, W. Volkrodt; "Machines of Medium-High Rating . . . Field".

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