Synchronous motor with permanent magnets

Details Synchronous motor with permanent magnets Synchronous motor with permanent magnets

H - Electricity

02

K

H02K 3/28 (2006.01) H02K 21/28 (2006.01) H02P 6/06 (2006.01) H02P 25/02 (2006.01)

Patent

CA 2062319

In a motor with permanent magnets and a motor system, the value .alpha. produced by dividing, by the induced voltage constant ke, the product of the inductance Lm of the motor itself or the inductance Ls of the motor system in the d-q coordinate system is selected to meet a predetermined condition. The range of rotational speeds in which the motor can be operated while maintaining a predetermined output under field weakening control can be widened. If a condition is established to determine a ratio by which the rated rotational speed under normal operating conditions is multiplied into a rotational speed under field weakening control, then conditions for a motor or a motor system that can be used can be determined.

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