SCI和EI收录∣中国化工学会会刊

›› 2014, Vol. 22 ›› Issue (7): 769-773.DOI: 10.1016/j.cjche.2014.05.013

• PROCESS CONTROL • 上一篇    下一篇

Model Predictive Control with Feedforward Strategy for Gas Collectors of Coke Ovens

Kai Li1, Dewei Li1, Yugeng Xi1, Debin Yin 2   

  1. 1. Department of Automation, Shanghai Jiao Tong University, Key Laboratory of System Control and Information Processing, Ministry of Education, Shanghai 200240, China;
    2. Shanghai Xinhua Control Technology (Group) Co., Ltd, Shanghai 200241, China
  • 收稿日期:2013-05-06 修回日期:2013-10-24 出版日期:2014-07-28 发布日期:2014-08-23
  • 通讯作者: Dewei Li
  • 基金资助:
    Supported by the State Key Laboratory of Synthetical Automation for Process Industries, the National Natural Science Foundation of China (61374110, 61333009, 61104078, 61221003) and the Minhang Technology Project of Shanghai (2012MH211).

Model Predictive Control with Feedforward Strategy for Gas Collectors of Coke Ovens

Kai Li1, Dewei Li1, Yugeng Xi1, Debin Yin 2   

  1. 1. Department of Automation, Shanghai Jiao Tong University, Key Laboratory of System Control and Information Processing, Ministry of Education, Shanghai 200240, China;
    2. Shanghai Xinhua Control Technology (Group) Co., Ltd, Shanghai 200241, China
  • Received:2013-05-06 Revised:2013-10-24 Online:2014-07-28 Published:2014-08-23
  • Supported by:
    Supported by the State Key Laboratory of Synthetical Automation for Process Industries, the National Natural Science Foundation of China (61374110, 61333009, 61104078, 61221003) and the Minhang Technology Project of Shanghai (2012MH211).

摘要: In coking process, the production quality, equipment life, energy consumption, and process safety are all influenced by the pressure in gas collector pipe of coke oven, which is frequently influenced by disturbances. The main control objectives for the gas collector pressure system are keeping the pressures in collector pipes at appropriate operating point. In this paper, model predictive control (MPC) strategy is introduced to control the collector pressure system due to its ability to handle constraint and good control performance. Based on a method proposed to simplify the system model, an extended state space model predictive control is designed, which combines the feedforward strategy to eliminate the disturbance. The simulation results in a system with two coke ovens show the feasibility and effectiveness of the control scheme.

关键词: Gas collector pressure system, Model predictive control, Feedforward

Abstract: In coking process, the production quality, equipment life, energy consumption, and process safety are all influenced by the pressure in gas collector pipe of coke oven, which is frequently influenced by disturbances. The main control objectives for the gas collector pressure system are keeping the pressures in collector pipes at appropriate operating point. In this paper, model predictive control (MPC) strategy is introduced to control the collector pressure system due to its ability to handle constraint and good control performance. Based on a method proposed to simplify the system model, an extended state space model predictive control is designed, which combines the feedforward strategy to eliminate the disturbance. The simulation results in a system with two coke ovens show the feasibility and effectiveness of the control scheme.

Key words: Gas collector pressure system, Model predictive control, Feedforward