Variable speed generator-motor apparatus capable of...

Details Variable speed generator-motor apparatus capable of... Variable speed generator-motor apparatus capable of...

H - Electricity

02

P

H02P 9/42 (2006.01) H02K 19/26 (2006.01) H02P 9/00 (2006.01) H02P 23/08 (2006.01)

Patent

CA 2152028

A variable velocity generator-motor apparatus includes a wound rotor induction generator-motor having a primary winding connected to a power system, a secondary winding excited by an alternating current (AC) and a generator shaft; a prime-mover/load united with the generator shaft; a frequency detection element for detecting an AC excita- tion frequency on the basis of power data including a frequency and a voltage phase in the power system and data of the generator shaft; an element for generating a slip frequency command value in the generator-motor; and a frequency control element for controlling the generator- motor in the manner that the AC excitation frequency is set to the slip frequency command value.

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