Abstract
In order to solve the problem of insufficient aerodynamic moment caused by thin air in the re-entry stage of hypersonic vehicle, this paper establishes an attitude angle model of hypersonic vehicle with reaction control system (RCS), and derives its affine linear model to decoupled the internal and external loop. According to the dead zone and saturation characteristics of RCS thruster, a control method to convert continuous moment into discrete switching instruction using pulse width modulation (PWM) is proposed. Since the number of thrusters is usually redundant, the installation matrix of thrusters in the body coordinate is established, and the command moment is coordinately distributed to the individual thrusters. Then a double-loop sliding mode controller (DSMC) is designed to achieve attitude stability and trajectory tracking. Finally, the simulation results show that DSMC has higher maneuverability, fewer thruster switches and stronger robustness to interference.
| Original language | English |
|---|---|
| Title of host publication | 2019 IEEE 15th International Conference on Control and Automation, ICCA 2019 |
| Place of Publication | Piscataway, N.J. |
| Publisher | IEEE |
| Pages | 109-114 |
| Number of pages | 6 |
| ISBN (Electronic) | 9781728111643 |
| DOIs | |
| Publication status | Published - 14 Nov 2019 |
| Event | 15th IEEE International Conference on Control and Automation, ICCA 2019 - Edinburgh, United Kingdom Duration: 16 Jul 2019 → 19 Jul 2019 |
Publication series
| Name | IEEE International Conference on Control and Automation, ICCA |
|---|---|
| Volume | 2019-July |
| ISSN (Print) | 1948-3449 |
| ISSN (Electronic) | 1948-3457 |
Conference
| Conference | 15th IEEE International Conference on Control and Automation, ICCA 2019 |
|---|---|
| Country/Territory | United Kingdom |
| City | Edinburgh |
| Period | 16/07/19 → 19/07/19 |
Funding
*This work is supported by Key Laboratory of Spacecraft Design Optimization and Dynamic Simulation Technologies, Minisitry of Education, China.
Keywords
- aerodynamics
- reentry hypersonic vehicle
- trajectory control
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