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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Hybrid Control Strategies for Rapid, Large Angle Satellite Slew Maneuvers

Hybrid Control Strategies for Rapid, Large Angle Satellite Slew Maneuvers

French, David B.

Paperback

Technology & EngineeringAstronomy & SpaceGeneral Education

ISBN10: 128833270X
ISBN13: 9781288332700
Publisher: Biblioscholar
Published: Nov 21 2012
Pages: 136
Weight: 0.44
Height: 0.29 Width: 6.14 Depth: 9.21
Language: English

This research investigated hybrid control strategies for rapid satellite pointing. First, a detailed computer simulation model of AFIT's SIMSAT satellite simulator was constructed. Control strategies were developed to enable the system to perform large-angle, 3-axis slewing maneuvers using a combination of both thrusters and reaction wheels. To handle the non-linear model, a State Dependent Riccati Equation controller was programmed and successfully controlled the computer-modeled satellite for any given slewing maneuver. A simpler PD controller was then programmed and demonstrated on the computer simulation of SIMSAT, using a combination of thruster and reaction wheel control inputs for large-angle single axis maneuvers and for small angles using three-axis control. There was good agreement between the experimentally obtained maneuver results and those produced with the computer simulation model for the single-axis case. Lastly, the trade-off between settling time and thruster fuel is discussed, as well as the variation of gains required to achieve maximum performance for a desired slew.

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