Global integral sliding mode control for ultra-low-altitude airdrop in extraction parachute failure state
| Autor: | Jia-Hai Zhu, Wen-Han Dong, Ri Liu, Yu-Hao Mao |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0209 industrial biotechnology
Computer science PID controller 02 engineering and technology 01 natural sciences Sliding mode control Integral sliding mode Nonlinear system 020901 industrial engineering & automation Pitch control Control theory Robustness (computer science) Linearization Control system 0103 physical sciences 010301 acoustics Inner loop |
| Zdroj: | 2018 Chinese Control And Decision Conference (CCDC). |
| DOI: | 10.1109/ccdc.2018.8407775 |
| Popis: | To reduce the impact on the flight safety and the airdrop mission completion from the extraction parachute failure, a novel controller based on the global integral sliding mode control is designed. Firstly, the open-loop characteristic of the carrier in extraction parachute failure state is analyzed. Then, the system is decoupled and linearized using the nonlinear linearization theories of input-output feedback. On this basis, by applying the two-rank iterative global integral sliding mode control, we design the inner loop for velocity control and pitch control. Combining the inner loop control with the outer loop PID control for flight-altitude, we build the entire flight control system which improves the dynamic performance of the system. Finally, simulation results show that the controllers have strong robustness for fault state. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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