High precision two-stage robust temperature control for accelerometer unit

作者：Yu Yao^*; Zhong Yisheng

来源：Acta Aeronautica et Astronautica Sinica, 2009, 30(6): 1103-1108.

• Bounded disturbances
• Control channels
• Control properties
• High precision
• Linear time-invariant
• Multi-operating conditions
• Multi-operating points
• Nominal controller
• Nonlinear uncertainties
• Robust compensators
• Signal compensation
• System modeling
• Temperature control methods
• Time varying
• Two input two outputs
• Two stage

An accelerometer unit two-stage temperature control system with multi-operating conditions is described as a two-input two-output nonlinear time-varying uncertain system with bounded disturbance and nonlinear uncertainty. The nonlinear uncertainty comprises system modeling error and the coupling of two interacting control channels. A robust temperature control method based on signal compensation is proposed. A controller designed by this method consists of a nominal controller and a robust compensator. The controller is linear time-invariant and can be realized easily. Robust control property of the closed-loop system is proven and experimental results show that the designed control system can guarantee high precision robust control of both the interior and exterior temperature of the accelerometer unit under multi-operating conditions.

• 出版日期2009
• 单位清华大学