Patent ID: 6072303
Filing Date: 2000-06-06
Classification: H02K,H02P

Abstract:
A method for determining phase alignment of a three-phase line synchronous generator, said line synchronous generator including an exciter stage having an exciter stator and an exciter rotor, one of said exciter stator and exciter rotor having a primary winding and the other one of said exciter stator and exciter rotor having first, second and third secondary phase windings, and a generator stage having a generator rotor and a generator stator, one of said generator stator and generator rotor having a primary winding and the other one of said generator stator and generator rotor having first, second and third secondary phase windings, the method comprising:connecting the primary windings of the exciter and generator stages to a three-phase AC power source, said AC power source having a line voltage equal to Vm;connecting the first secondary phase winding of the exciter stage to the first secondary phase winding of the generator stage;measuring a voltage of approximately 2 Vm between the second secondary phase winding of the exciter stage and the second secondary phase winding of the generator stage;measuring a voltage of approximately 2 Vm between the third secondary phase winding of the exciter stage and the third secondary phase winding of the generator stage;connecting the second secondary phase winding of the exciter stage to the second secondary phase winding of the generator stage; andconnecting the third secondary phase winding of the exciter stage to the third secondary phase winding of the generator stage.