Patent ID: 8410739
Filing Date: 2013-04-02
Classification: B60L,G01R,H02P,Y02T

Abstract:
1. A power circuit configured to monitor an operating condition of rotating diodes within a rotating rectifier for a rotating field circuit inductively coupled to a stationary armature circuit of a generator providing power for a drive motor of an electric drive system in a machine, the electric drive system including a prime mover disposed to provide an output coupled with the generator, the power circuit comprising: a rectifier circuit having an input interface coupled to a multiphase output of the stationary armature circuit of the generator; a DC link, coupled to an output interface of the rectifier circuit, the DC link having a DC link voltage defined between a first DC rail and a second DC rail; and a controller configured to perform the steps of: setting a flag indicating a malfunction condition for one or more of the rotating diodes within the rotating rectifier for the rotating field circuit of the generator when a magnitude of the difference exceeds a threshold.