Adaptive predictive control for superheated steam temperature based on multiple models switching

作者：Lin Jinxing^*; Shen Jiong; Li Yiguo

来源：Journal of Southeast University(Natural Science Edition), 2008, 38(1): 69-74.

• Dynamic characteristic
• Multi model switching
• Predictive controller
• Sampling time
• Time varying

To deal with the effect of the superheated steam temperature object's outstanding inertial behavior and its parameters time-varying on control quality of the system, an adaptive predictive control method based on multi-model switching is adopted. Multiple fixed models and two adaptive models are established to identify the dynamic characteristic of the superheater in parallel. At each sampling time, according to the switching index a best model is selected and the predictive controller is designed accordingly. Consequently, the full-range operation adaptive control is achieved. The bounded-input and bounded-output stability of closed-loop system are proved. Simulation results show that the proposed method have good control performance and strong robustness within a wide operating range.

• 出版日期2008
• 单位东南大学