Multiple phase electric motor and drive

H - Electricity – 02 – J

Patent

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Details

H02J 7/00 (2006.01) H02K 1/00 (2006.01) H02M 7/42 (2006.01)

Patent

CA 2684350

A multiple phase electric motor provided with multiple inverter power circuits is described herein. The capacity of the capacitor bank required for multiple phase motors operating from a DC power source is therefore decreased. This is done by forming groups of phases that are powered by a separate inverter power circuit. The inverter power circuits are connected to the same DC power source including a bank of capacitors and are so controlled as to be phase offset from one another to allow the use of a smaller capacity capacitor bank.

L'invention concerne un moteur électrique polyphasé comprenant de multiples circuits de puissance à onduleur. La capacité du banc de condensateurs indispensable à des moteurs polyphasés fonctionnant avec une source d'alimentation électrique en courant continu est donc réduite. Cette réduction est réalisée en formant des groupes de phases alimentés par un circuit de puissance à onduleur séparé connectés à la même source d'alimentation en courant continu comprenant un banc de condensateurs et commandés de manière à être déphasés l'un par rapport à l'autre pour permettre l'utilisation d'un banc de condensateurs à plus faible capacité.

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