کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5003033 1368462 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A Model-based diagnosis method for transient and multiple faults of AOCS thrusters
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
A Model-based diagnosis method for transient and multiple faults of AOCS thrusters
چکیده انگلیسی
This paper deals with a practical implementation for the detection and isolation of multiple transient faults of thrusters used to control the attitude of a satellite. The approach proposed in the paper only takes into account attitude control signals to detect the faults regardless of the thrusters management algorithm and modulator. Two methods are compared to compute the residuals for the detection and isolation steps: one based on a geometric analysis of faults directions, the other using observers with unknown inputs. Luenberger's observers allow the estimation of the efficiency losses providing delta-V information without orbit restitution or acceleration measurements. The algorithms are illustrated on representative closed-loop simulations with simultaneous transient losses of efficiency, and on flight telemetry where transient losses of efficiency are suspected with respect to a posteriori orbit restitution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: IFAC-PapersOnLine - Volume 49, Issue 17, 2016, Pages 82-87
نویسندگان
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