Sliding-mode-based robust controller design for one channel in thrust vector system with electromechanical actuators |
| |
| Institution: | 1. School of Astronautics, Harbin Institute of Technology, Harbin 150001, China;2. Graduate School of Science and Technology, Tokai University 9-1-1, Toroku, Kumamoto 862-8652, Japan;1. School of Astronautics, Harbin Institute of Technology, Harbin 150001, China;2. Graduate School of Science and Technology, Tokai University, 9-1-1 Toroku, Kumamoto 862-8652, Japan;1. School of Mechanical Engineering, Harbin Institute of Technology, 150001 Harbin, China;2. School of Engineering and Applied Sciences, McMaster University, L8S 1A9 Hamilton, Canada;1. State Key Lab for Turbulence and Complex Systems, Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, PR China;2. School of Automation and Electrical Engineering, University of Science and Technology Beijing, Beijing 100083, China;3. Institute for Automatic Control and Complex Systems, University of Duisburg-Essen, Duisburg 47057, Germany |
| |
| Abstract: | In this paper, a sliding-mode-based robust controller is proposed for the single channel thrust vector system (TVC) to suppress the disturbances and improve the tracking performance. Specifically, the dead-zone input–output relationship is analyzed to depict the mount gap in the mechanical shaft. The system mathematic representation including the mechanical and electrical sections, which suffers from the dead-zone nonlinearity, frictions and unstructured disturbance, is constructed. An adaptive-fuzzy-based observer is developed to estimate and compensate the disturbances because the fuel combustion dynamic and frictions in TVC are inevitable but difficult to obtain the precise dynamic state. Based on the nominal model, a robust controller is designed via the sliding-mode variable structure approach, which is derived in the sense of Lyapunov stability theorem. Instead of the traditional hitting law in the sliding mode controller, the chattering problem due to the discontinuous switch law is addressed by a continuous function. In the end, various illustrative examples are provided to demonstrate the effectiveness of the designed method. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
