Energy Efficiency Improvement of an Industrial Crystallization Process Using Linearizing Control

• 作者: Brigitte Grondin-Perez Cédric Damour Jean-Pierre Chabriat Lionel Boillereaux Michel Benne
• 来源期刊: 结晶过程及技术期刊(英文)
• 学科: 医学
• 关键词: Energy EFFICIENCY IMPROVEMENT Linearizing CONTROL INDUSTRIAL CONTROL Phase CHANGING CRYSTALLIZATION
• 年，卷（期）: 2012,（2）
• 页码范围: 44-54
• 页数: 11页
• 分类号: R73

摘要

This paper illustrates the benefits of a multivariable linearizing control approach applied to an industrial crystallization process. This relevant approach is declined according to two different strategies: first, a setpoint tracking is proposed for the couple crystal mass/concentration, whereas a second way consists in tracking of crystal content and concentration. The controlled variables, unavailable online, are issued from an observer developed in previous works. The performance of these strategies, which application to cane sugar crystallization constitutes a real novelty, are compared with experimental data issued from a PID-controlled industrial plant. The results reveal a significant improvement of energy efficiency, leading to an economy of more than 10% of energy.