Electricity: motive power systems – Synchronous motor systems
Reexamination Certificate
2006-10-03
2006-10-03
Masih, Karen (Department: 2837)
Electricity: motive power systems
Synchronous motor systems
C318S811000, C318S139000
Reexamination Certificate
active
07116075
ABSTRACT:
A control system for an electric motor. Field Oriented Control, FOC, uses a digital control system, and attempts to maintain the rotating stator magnetic field ninety degrees ahead of the rotor field, in order to maximize torque. However, if a three-phase motor is used, which is very common, large amounts of computation are required, to convert from a three-phase coordinate system to an orthogonal coordinate system. The invention replaces the three-phase motor with a two-phase motor, which has been found to impose certain additional costs, but also provides benefits.
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Gallagher Thomas James
Jiang Hong
Kolomeitsev Sergei
Suriano John R.
Whinnery Joseph P.
Jacox Meckstroth & Jenkins
Masih Karen
Valeo Electrical Systems, Inc.
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