Abstract
The sensor-based Incremental Nonlinear Dynamic Inversion (INDI) control has shown promising robustness in the aerospace research field. This control framework only requires a partial knowledge of plant (control effectiveness) because of its usage of angular accelerations and actuator output measurements. However, there are still un-negligible uncertainties of the control effectiveness model in the flight control system, especially when the aircraft is subjected to structural damage/actuator faults. This paper shows that the conventional INDI control fails to satisfy the sufficient conditions for closed-loop stability in the presence of severe damage. Therefore, this paper also proposes a predictor-based gain adaptive INDI control (named PGA-INDI) which can successfully deal with control effectiveness parametric errors caused by structural damage, actuator faults, and model uncertainties. Various simulations using a public aircraft model have demonstrated the effectiveness of the proposed approach.
Original language | English |
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Pages (from-to) | 730-736 |
Number of pages | 7 |
Journal | IFAC-PapersOnline |
Volume | 55 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2022 |
Event | 11th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes, SAFEPROCESS 2022 - Pafos, Cyprus Duration: 8 Jun 2022 → 10 Jun 2022 |
Keywords
- Control Effectiveness Uncertainty
- Fault-tolerant Flight Control
- Incremental Nonlinear Dynamic Inversion
- Predictor