A Modified L1 Adaptive Output Feedback Control and its Application in Control of Wind Tunnel
- Resource Type
- Conference
- Authors
- Zhu, Rusong; Zhang, Shuangxi; Kang, Jinfeng; Guo, Zili; Tang, Gengsheng
- Source
- 2018 37th Chinese Control Conference (CCC) Control Conference (CCC), 2018 37th Chinese. :5047-5054 Jul, 2018
- Subject
- Computing and Processing
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Uncertainty
Adaptive control
Optimization
Output feedback
Wind tunnels
Delays
Actuators
L1 adaptive control
output feedback
nonlinear optimization
wind tunnel
- Language
- ISSN
- 1934-1768
L 1 adaptive control is a new control methodology developed in recent years. This paper introduces the discrete integral of the uncertainty to the standard piecewise constant adaptive law of the L 1 adaptive output feedback control. The modified adaptive law can guarantee better transient and steady target tracking performance compared with the standard adaptive law. A global nonlinear optimization process is carried out to obtain the sub-optimal filter design for the L 1 adaptive output feedback controller to maximize the performance index. With these design technique, an augmented L 1 adaptive control structure is applied to the temperature control of a wind tunnel. The simulation results and analysis demonstrate the effectiveness of the proposed control architecture.