Electricity: single generator systems – Generator control – Magnetic structure
Reexamination Certificate
2006-05-02
2006-05-02
Schuberg, Darren (Department: 2834)
Electricity: single generator systems
Generator control
Magnetic structure
C310S090500, C310S090000
Reexamination Certificate
active
07038429
ABSTRACT:
Control system for electromechanical arrangements having open-loop instability. The system includes a control unit that processes sensing signals and provides control signals to maintain a movable member, such as a rotor or shaft, in the desired position. The control unit according to the invention includes a unifying plant compensation filter, which isolates the open-loop instability characteristics so that the shaft is treated as a mass having substantially no open-loop structural properties. In magnetic bearings, the open-loop instability is manifested as negative stiffness. The invention isolates the negative stiffness thus providing for better positive stiffness and improved bandwidth. Various filters, summers, and other operators required to carry out the invention are preferably implemented on a programmed processing platform such as a digital signal processor (DSP) or an arrangement of multiple digital signal processors.
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Browning Douglas Roy
Novak Stephanie
Bell Michael J.
General Dynamics Advanced Information Systems Inc.
Gonzalez Ramirez Julio
Howrey LLP
Schuberg Darren
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