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Fuzzy logic controller optimization

United States Patent

March 23, 2004
View the Complete Patent at the US Patent & Trademark Office
National Renewable Energy Laboratory - Visit the NREL Technology Transfer Website
A method is provided for optimizing a rotating induction machine system fuzzy logic controller. The fuzzy logic controller has at least one input and at least one output. Each input accepts a machine system operating parameter. Each output produces at least one machine system control parameter. The fuzzy logic controller generates each output based on at least one input and on fuzzy logic decision parameters. Optimization begins by obtaining a set of data relating each control parameter to at least one operating parameter for each machine operating region. A model is constructed for each machine operating region based on the machine operating region data obtained. The fuzzy logic controller is simulated with at least one created model in a feedback loop from a fuzzy logic output to a fuzzy logic input. Fuzzy logic decision parameters are optimized based on the simulation.
Sepe, Jr.; Raymond B (Mefield, MA), Miller; John Michael (Saline, MI)
Ford Global Technologies, LLC (Dearborn, MI)
09/ 669,211
September 25, 2000
This invention was made with Government support under NREL Subcontract No. ZCB-4-13032-02, Prime Contract No. DE-AC36-83CH10093 awarded by the Department of Energy. The Government has certain rights in the invention.