کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
695788 1460663 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Robust fault estimation and compensation for LPV systems under actuator and sensor faults
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
Robust fault estimation and compensation for LPV systems under actuator and sensor faults
چکیده انگلیسی

We propose a fault tolerant control scheme that compensates for actuator and sensor faults in linear parameter varying (LPV) systems by adjusting controller and observer gains based on estimates of the fault magnitude. The scheme consists of a plant in closed loop with an observer-based feedback tracking controller, which is adapted to the fault situation diagnosed by a fault detection and isolation (FDI) algorithm. Assuming the presence of unknown but bounded process and measurement disturbances, invariant sets are derived for the relevant system variables, and these sets are used to obtain error bounds in the fault estimate. Using these bounds, we provide conditions that ensure correct FDI and robust stability of the compensated closed-loop system even under errors in the fault magnitude estimation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Automatica - Volume 52, February 2015, Pages 294–301
نویسندگان
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