scholarly journals Fast Real-Time Model Predictive Control for a Ball-on-Plate Process

Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 3959
Author(s):  
Krzysztof Zarzycki ◽  
Maciej Ławryńczuk
Keyword(s):  
State Space ◽  
Real Time ◽  
Process Model ◽  
Fast State ◽  
Time Model ◽  
Time Optimization ◽  
On Line ◽  
Software And Hardware ◽  
Computational Simplicity ◽  
Real Time Optimization

This work is concerned with an original ball-on-plate laboratory process. First, a simplified process model based on state–space process description is derived. Next, a fast state–space MPC algorithm is discussed. Its main advantage is computational simplicity: the manipulated variables are found on-line using explicit formulas with parameters calculated off-line; no real-time optimization is necessary. Software and hardware implementation details of the considered MPC algorithm using the STM32 microcontroller are presented. Tuning of the fast MPC algorithm is discussed. To show the efficacy of the MPC algorithm, it is compared with the classical PID and LQR controllers.

A Trust-Region Framework for Real-Time Optimization with Structural Process-Model Mismatch

2020 ◽  
Vol 48 (4) ◽  
pp. 809-830
Author(s):  
Kexin Wang ◽  
Cheng Yang ◽  
Zhijiang Shao ◽  
Xiaojin Huang ◽  
Lorenz T. Biegler
Keyword(s):  
Real Time ◽  
Process Model ◽  
Trust Region ◽  
Structural Process ◽  
Model Mismatch ◽  
Time Optimization ◽  
Real Time Optimization

Real-Time Optimization of an Industrial-Scale Vapor Recompression Distillation Process. Model Validation and Analysis

2013 ◽  
Vol 52 (16) ◽  
pp. 5735-5746 ◽  
Author(s):  
Diego. F. Mendoza ◽  
Lina M. Palacio ◽  
José E. A. Graciano ◽  
Carlos A. M. Riascos ◽  
Ardson S. Vianna ◽  
...  
Keyword(s):  
Real Time ◽  
Model Validation ◽  
Process Model ◽  
Industrial Scale ◽  
Distillation Process ◽  
Time Optimization ◽  
Vapor Recompression ◽  
Real Time Optimization

scholarly journals Experimental real-time optimization of a solid oxide fuel cell stack via constraint adaptation

Energy ◽  
2012 ◽  
Vol 39 (1) ◽  
pp. 54-62 ◽  
Author(s):  
Gene A. Bunin ◽  
Zacharie Wuillemin ◽  
Grégory François ◽  
Arata Nakajo ◽  
Leonidas Tsikonis ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Real Time ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Fuel Cell Stack ◽  
Time Optimization ◽  
Real Time Optimization

Real-Time Optimization of Wind Farm Energy Capture With Delay Compensated Nested-Loop Extremum Seeking Control

2017 ◽  
Author(s):  
Zhongyou Wu ◽  
Yaoyu Li
Keyword(s):  
Wind Turbine ◽  
Real Time ◽  
Wind Farm ◽  
Optimization Techniques ◽  
Extremum Seeking ◽  
Extremum Seeking Control ◽  
Energy Capture ◽  
Time Optimization ◽  
Real Time Optimization ◽  
Nested Loop

Real-time optimization of wind farm energy capture for below rated wind speed is critical for reducing the levelized cost of energy (LCOE). Performance of model based control and optimization techniques can be significantly limited by the difficulty in obtaining accurate turbine and farm models in field operation, as well as the prohibitive cost for accurate wind measurements. The Nested-Loop Extremum Seeking Control (NLESC), recently proposed as a model free method has demonstrated its great potential in wind farm energy capture optimization. However, a major limitation of previous work is the slow convergence, for which a primary cause is the low dither frequencies used by upwind turbines, primarily due to wake propagation delay through the turbine array. In this study, NLESC is enhanced with the predictor based delay compensation proposed by Oliveira and Krstic [1], which allows the use of higher dither frequencies for upwind turbines. The convergence speed can thus be improved, increasing the energy capture consequently. Simulation study is performed for a cascaded three-turbine array using the SimWindFarm platform. Simulation results show the improved energy capture of the wind turbine array under smooth and turbulent wind conditions, even up to 10% turbulence intensity. The impact of the proposed optimization methods on the fatigue loads of wind turbine structures is also evaluated.

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