Model Free Adaptive Predictive Control of Desul-furization Slurry pH Based on CPS Framework

• 作者: Fuqiang Wang Guimei Cui Jian Liu Kang Wang Xiaoli Li
• 来源期刊: 北京理工大学学报（英文版）
• 学科: 工学
• 年，卷（期）: 2020,（4）
• 页码范围: 544-555
• 页数: 12页
• 分类号: TP273
• 语种: 英文
• DOI: 10.15918/j.jbit1004-0579.20084

摘要

In order to improve the slurry pH control accuracy of the absorption tower in the wet flue gas desulfurization process, a model free adaptive predictive control algorithm for the desulfur-ization slurry pH which is based on a cyber physical systems framework is proposed. First, aiming to address system characteristics of non-linearity and pure hysteresis in slurry pH change process, a model free adaptive predictive control algorithm based on compact form dynamic linearization is proposed by combining model free adaptive control algorithm with model predictive control al-gorithm. Then, by integrating information resources with the physical resources in the absorption tower slurry pH control process, an absorption tower slurry pH optimization control system based on cyber physical systems is constructed. It is turned out that the model free adaptive predictive control algorithm under the framework of the cyber physical systems can effectively realize the high-precision tracking control of the slurry pH of the absorption tower, and it has strong robust-ness.