Method and apparatus for high efficiency operation of electromechanical energy conversion devices
Patent 4408147 Issued on October 4, 1983. Estimated Expiration Date: 
March 16, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 16, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesControl device for use in shunt motor Control circuit for a DC electric motor particularly used in the propulsion of an electric vehicle Method and apparatus for operating DC motors at high efficiency System for driving DC motor DC Machine control circuit Patent #: 4322667 InventorApplicationNo. 06/358697 filed on 03/16/1982US Classes:318/493CONTROL OF BOTH ARMATURE (OR PRIMARY) CIRCUIT AND FIELD (OR SECONDARY) CIRCUITExaminersPrimary: Truhe, J. V.Assistant: Duncanson, W. E. Jr. Attorney, Agent or FirmInternational ClassesH02P 7/298 (20060101)H02P 7/18 (20060101) AbstractA method and apparatus are disclosed for controlling the conversion of electrical energy to mechanical energy as well as for controlling the conversion of mechanical energy to electrical energy. In a separately excited electromechanical energy conversion system, total system power losses are minimized by simultaneously controlling the currents flowing in the different windings of the energy conversion device such that these currents are related by an optimizing function. This method and apparatus are applicable to a wide variety of electric motors and generators. | |
