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Title: Method and apparatus for steering a spacecraft and regulating its onboard supply voltage
Abstract:
The invention relates generally to a method of regulating the onboard voltage of a spacecraft and of steering the same by at least two contrarotating motor-generator dynamoelectrical machines. According to said method, there are provided two phases: The energy storage mode, during which each machine receives electrical energy from solar generators through a velocity controlling generator commanded from a synthesis of the data relating to position and rotor velocity; The energy restitution mode, during which each generator supplies energy to a load consisting of the onboard equipment of the satellite. Output monitoring systems effect a synthesis of the data relating to position rotor velocity and additionally control the power switches. According to the same method, there is also provided on board of said spacecraft, electronic equipment which is divided into two main sections, to wit: Electronic control equipment; Electronic processing equipment, itself divided into two parts: control means positioning system and a computing system.
Other info: Inventors: Legrand, Francis (Le Chesnay, FR) Application Number: 787653 Filing Date: 1977-04-14 Publication_date: 1979-08-07 Assignee: Societe Nationale Industrielle Aerospatiale (Paris, FR) Primary Class(es): 701/3 244/166, 310/113, 318/66, 701/220 Other Classes: US Patent Ref:
Other Refs: Other References: Briggs et al.; "Electrical Power Subsystem for the Synchronous Meteorological Satellite (SMS); " Proc. of 7th Intersociety Everly Conversion; Eng. Conf.-San Diego, Calif. (Sep. 25-29, 1972). Dunlop; "Communications Satellite Power Conditioning Systems"-Power Conditioning Specialists Conference Record; Greenbelt, Md., (Apr. 20-27, 1970). | |