DocumentCode :
1433290
Title :
Dynamic Control and Diagnostic Friction Estimation for an SPMSM-Driven Satellite Reaction Wheel
Author :
Chou, Ming-Chang ; Liaw, Chang-Ming
Author_Institution :
Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Volume :
58
Issue :
10
fYear :
2011
Firstpage :
4693
Lastpage :
4707
Abstract :
This paper presents a robust dynamic control for a DSP-based satellite reaction wheel driven by a surface-mounted permanent-magnet synchronous motor and its friction estimation from the observed disturbance. In the proposed current control scheme, a proportional-plus-integral feedback controller is augmented with a resonant-based feedback controller and a robust tracking error cancellation controller to yield an excellent sinusoidal winding current command tracking control. The controller design considering compromised performances is conducted. As to the outer loop speed control scheme, the equivalent dynamic model parameters at the nominal case are first estimated, and accordingly, a feedback controller is designed to yield the defined reference response. As the changes of the system parameters and operating conditions occur, a simple robust speed error cancellation control scheme is developed to preserve the defined response trajectory. For a larger speed command change, the ramp command with a suited ramping rate is arranged to avoid long-duration control effort saturation. Meanwhile, an observed disturbance is obtained using a nominal inverse motor drive model, and it is employed to estimate the wheel frictional condition, which can be used in diagnosing the wheel mechanical healthy condition.
Keywords :
artificial satellites; control system synthesis; electric current control; feedback; friction; permanent magnet motors; robust control; synchronous motors; velocity control; DSP-based satellite reaction wheel; SPMSM-driven satellite reaction wheel; controller design; defined reference response; defined response trajectory; diagnostic friction estimation; equivalent dynamic model parameter; long-duration control effort saturation; nominal inverse motor drive model; outer loop speed control; proportional-plus-integral feedback controller; ramp command; ramping rate; resonant-based feedback controller; robust dynamic control; robust speed error cancellation control; robust tracking error cancellation controller; sinusoidal winding current command tracking control; surface-mounted permanent-magnet synchronous motor; wheel frictional condition; wheel mechanical healthy condition; Adaptive control; Current control; Frequency control; Robustness; Velocity control; Wheels; Windings; Current control; disturbance observer; dynamic modeling; friction estimation; parameter estimation; robust control; satellite reaction wheel; speed control; surface-mounted permanent-magnet synchronous motor (SPMSM);
fLanguage :
English
Journal_Title :
Industrial Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0278-0046
Type :
jour
DOI :
10.1109/TIE.2011.2107712
Filename :
5699362
Link To Document :
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