IT1031521B - Brushless electric machine driving and driven by turbine - has exciter with rotating armature and rectifier feeding stator
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Brushless electric machine driving and driven by turbine - has exciter with rotating armature and rectifier feeding stator
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IT1031521B
IT1031521BIT2001975AIT2001975AIT1031521BIT 1031521 BIT1031521 BIT 1031521BIT 2001975 AIT2001975 AIT 2001975AIT 2001975 AIT2001975 AIT 2001975AIT 1031521 BIT1031521 BIT 1031521B
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Publication of IT1031521BpublicationCriticalpatent/IT1031521B/en
The main machine works as a brushless D.C. motor to start a gas turbine and then works as a synchronous generator. The rotor of the main machine is on a common shaft with the turbine, the exciter and the auxiliary generator. The main stator is connected to a switching network to provide the correct armature current during operation as a motor and the required output during operation as a generator. The field windings of the main rotor are fed through a rectifier on the shaft from the rotating armature of the exciter. The exciter stator has three windings which can be connected through a switching network either to an A.C. source or to a D.C. supply obtained from a permanent magnet auxiliary generator.
IT2001975A1974-02-071975-02-06Brushless electric machine driving and driven by turbine - has exciter with rotating armature and rectifier feeding stator
IT1031521B
(en)