| 摘要 |
1448990 Dynamo-electric machines NATIONAL RESEARCH DEVELOPMENT CORP 7 Dec 1973 [22 Dec 1972] 59401/72 Heading H2A An A.C. brushless machine comprises two similar machine elements each having a wound stator and a rotor with rotor asymmetry in two axes electrically at right angles, the two machine elements being coupled together mechanically and connected together electrically in parallel with electrical displacement between the elements, the sum of the electrical displacement α between the stator windings and of the electrical displacement # between corresponding rotor axes being substantially #/2 radians. The machine may be of the rotary or linear type and may be operated as a synchronous or asynchronous motor or as a single phase generator. During operation as a synchronous motor, the stator windings are supplied with A.C. and D.C. |
