Browse Publications Technical Papers 2004-01-0568

Control of a Brushless PM Traction Drive Following a Winding or Power Semiconductor Failure 2004-01-0568

The paper considers the implications of typical faults on the operation and control of a permanent magnet (PM) traction drive. The discussion is illustrated with analyses and test results taken from a vector controlled, imbedded magnet design of PM motor that has been prototyped for a future fuel cell powered mid size car. In particular the paper describes the outcome of an experimental investigation where a series of representative faults have been imposed on the prototype machine. The impact of the various faults and the subsequent fault control on the drive system are presented in terms of braking torque, and maximum current requirements.


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