Electricity: motive power systems – Synchronous motor systems – Hysteresis or reluctance motor systems
Reexamination Certificate
2005-08-02
2005-08-02
Martin, Edgardo San (Department: 2837)
Electricity: motive power systems
Synchronous motor systems
Hysteresis or reluctance motor systems
C318S719000, C318S721000, C318S801000, C318S254100, C318S132000, C318S434000, C318S610000
Reexamination Certificate
active
06924617
ABSTRACT:
A control system for an electric motor having a stator and rotor including an inverter for providing power to the electric motor, a controller for controlling the inverter, a low speed control block to estimate the rotor angular position using stator current components operating in the controller, a high speed control block to estimate the rotor angular position using stator current components and stator flux position operating in the controller, a transition switch in the controller to vary operation between the low speed control block and the high speed control block, and where the inverter is controlled by six step operation.
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Bae Bon-Ho
Nagashima James M.
Patel Nitinkumar R.
Schulz Steven E.
Sul Seung Ki
DeVries Christopher
General Motors Corporation
Martin Edgardo San
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