Variable speed electronic motor and the like

Details Variable speed electronic motor and the like Variable speed electronic motor and the like

H - Electricity

02

P

322/10, 321/34,

H02P 25/02 (2006.01)

Patent

CA 1067955

ABSTRACT OF THE DISCLOSURE A variable speed electronic motor having wound polyphase armature and field windings each of which is energized by a polyphase source whose voltage and frequency are variable in a controlled fashion. Provision is made to control the excita- tion of the armature and field windings so that the torque output is optimized for all loads and speeds. Also, the machine disclosed can be made to function in a generating mode; hence, there can be flow of both electrical and mechanical energy to and from the machine and the amount of each can be carefully regulated. In addition, a variation of the machine, acting purely in a generating mode, can be programmed to regulate electrical output of the machine independent of the angular velocity of the machine, and output power can be similarly regulated,, all within reasonable limits. Also, for some requirements one winding can be energized at a constant frequency and voltage and the other can be excited at variable frequency and voltage.

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