Hierarchical nonlinear model predictive control with multi-time-scale for wastewater treatment process

2021 ◽  
Vol 108 ◽  
pp. 125-135
Author(s):  
Hong-Gui Han ◽  
Shi-Jia Fu ◽  
Hao-Yuan Sun ◽  
Jun-Fei Qiao
Keyword(s):  
Wastewater Treatment ◽  
Model Predictive Control ◽  
Predictive Control ◽  
Nonlinear Model ◽  
Time Scale ◽  
Treatment Process ◽  
Nonlinear Model Predictive Control ◽  
Wastewater Treatment Process

Output Feedback Control Synthesis for a Helicopter Using Explicit Nonlinear Model Predictive Control, Dynamic Inversion and Extended High Gain Observers

2019 ◽  
Author(s):  
Joohwan Seo ◽  
Jongeun Choi
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Nonlinear Model ◽  
Time Scale ◽  
Control Design ◽  
High Gain ◽  
Nonlinear Model Predictive Control ◽  
Control Synthesis ◽  
Dynamic Inversion ◽  
Discretization Scheme

Abstract Control design for a helicopter is a challenging problem because of its non-affine inputs, complicated dynamics and it is an under-actuated system. To solve a control problem of the helicopter under model uncertainties and disturbance present environments, an Explicit Nonlinear Model Predictive Control (ENMPC), a dynamic inversion and an Extended High-Gain Observers (EHGO) are combined in a multi-time-scale fashion. The multi-time scaled structrue and the ENMPC provides the framework of the control design, the dynamic inversion deals with non-affine control inputs, and the EHGO estimates the unmeasured states and uncertainties. In addition, a discretization scheme using the saturation and adding low pass filters to the control inputs is presented. Finally, the numerical simulation of a fixed sampling period has been carried out to demonstrate the validity of the proposed multi-time-scale control design and the discretization scheme.

scholarly journals Model Predictive Control of Stochastic Wastewater Treatment Process for Smart Power, Cost-Effective Aeration

2019 ◽  
Vol 52 (1) ◽  
pp. 622-627 ◽  
Author(s):  
Peter A. Stentoft ◽  
Daniela Guericke ◽  
Thomas Munk-Nielsen ◽  
Peter S. Mikkelsen ◽  
Henrik Madsen ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Model Predictive Control ◽  
Predictive Control ◽  
Treatment Process ◽  
Cost Effective ◽  
Smart Power ◽  
Wastewater Treatment Process ◽  
Power Cost
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