Variable speed constant frequency synchronous electric power generating system and method of using same

An electrical power generating system comprising:

• an alternator having a rotor with field coils with a multiplicity of circuits for conducting multiple electric currents to thereby produce a multipolar electromagnetic field whose angular position relative to said rotor is determined by the relative magnitude of said electric currents in each of said multiple circuits, a stator armature having windings that generate alternating current voltages in response to said multipolar electromagnetic field when said multipolar electromagnetic field is rotated in respect to said stator armature windings, and output terminals connected to said stator armature windings;
• means for defining a reference angular position as a function of time;
• means for controlling the angular position as a function of time of said reference angular position;
• comparison means for substantially continuously comparing the angular position of said reference angular position with the angular position of said rotor;
• control means for controlling said relative magnitude of said electric currents in each of said multiple circuits of said field coil windings whereby the angular position of said rotor electromagnetic field relative to said rotor is substantially continuously the same as the angular position of said reference angular position relative to said rotor.

An electrical power generating system comprising:

• an alternator having a rotor with field coils with a multiplicity of circuits for conducting multiple electric currents to thereby produce a multipolar electromagnetic field whose angular position relative to said rotor is determined by the relative magnitude of said electric currents in each of said multiple circuits, a stator armature having windings that generate alternating current voltages in response to said multipolar electromagnetic field when said multipolar electromagnetic field is rotated in respect to said stator armature windings, and output terminals connected to said Stator armature windings;
• means defining a reference angular position as a function of the electrical angle as a function of time of an alternating current voltage;
• means for controlling the angular position as a function of time of said reference angular position;
• comparison means for substantially continuously comparing the angular position of said reference angular position with the angular position of said rotor;
• control means for controlling said relative magnitude of said electric currents in each of said multiple circuits of said field coil windings whereby the angular position of said rotor electromagnetic field relative to said rotor is substantially continuously the same as the angular position of said reference angular position relative to said rotor.

An electrical power generating method using:

• an alternator having a rotor with field coils with a multiplicity of circuits for conducting multiple electric currents to thereby produce a multipolar electromagnetic field whose angular position relative to said rotor is determined by the relative magnitude of said electric currents in each of said multiple circuits, a stator armature having windings that generate alternating current voltages in response to said multipolar electromagnetic field when said multipolar electromagnetic field is rotated in respect to said stator armature windings, and output terminals connected to said stator armature windings;
• rotatable reference means rotating at a fixed or controllably variable reference speed;
• means for controlling the rotational speed of said rotatable reference means at a variable rotational speed;
• comparison means for substantially continuously comparing the angular position of said rotatable reference means with the angular position of said rotor;
• control means for controlling said relative magnitude of said electric currents in each of said multiple circuits of said field coil windings whereby the angular position of said rotor electromagnetic field relative to said rotor is substantially the same as said angular position of said rotatable reference means relative to said rotor.

An electrical power generating method using:

• an alternator having a rotor with field coils with a multiplicity of circuits for conducting multiple electric currents to thereby produce a multipolar electromagnetic field whose angular position relative to said rotor is determined by the relative magnitude of said electric currents in each of said multiple circuits, a stator armature having windings that generate alternating current voltages in response to said multipolar electromagnetic field when said multipolar electromagnetic field is rotated in respect to said stator armature windings, and output terminals connected to said stator armature windings;
• means for defining a reference angular position as a function of time;
• means for controlling the angular position as a function of time of said reference angular position;
• comparison means for substantially continuously comparing the angular position of said reference angular position with the angular position of said rotor;
• control means for controlling said relative magnitude of said electric currents in each of said multiple circuits of said field coil windings whereby the angular position of said rotor electromagnetic field relative to said rotor is substantially continuously the same as the angular position of said reference angular position relative to said rotor.

An electrical power generating method using:

• an alternator having a rotor with field coils with a multiplicity of circuits for conducting multiple electric currents to thereby produce a multipolar electromagnetic field whose angular position relative to said rotor is determined by the relative magnitude of said electric currents in each of said multiple circuits, a stator armature having windings that generate alternating current voltages in response to said multipolar electromagnetic field when said multipolar electromagnetic field is rotated in respect to said stator armature windings, and output terminals connected to said stator armature windings;
• means defining a reference angular position as a function of the electrical angle as a function of time of an alternating current voltage;
• means for controlling the angular position as a function of time of said reference angular position;
• comparison means for substantially continuously comparing the angular position of said reference angular position with the angular position of said rotor;
• control means for controlling said relative magnitude of said electric currents in each of said multiple circuits of said field coil windings whereby the angular position of said rotor electromagnetic field relative to said rotor is substantially continuously the same as the angular position of said reference angular position relative to said rotor.