作者:李新春,何春明(北京和利時(shí)系統工程有限公司,北京 100176)
摘要:連續攪拌反應釜CSTR廣泛應用于化工、燃料、制藥等生產(chǎn)過(guò)程,由于其機理復雜、多變量耦合、非線(xiàn)性強,CSTR過(guò)程的常規控制難于取得理想效果。本文在一類(lèi)通用的CSTR非線(xiàn)性機理模型基礎上應用EMPC控制策略,針對不同生產(chǎn)場(chǎng)景定義了相應的優(yōu)化指標。在考慮質(zhì)量、安全等多種約束的條件下,直接基于非線(xiàn)性模型進(jìn)行預測和優(yōu)化,解決了CSTR過(guò)程的優(yōu)化控制問(wèn)題,并在多種控制模式下驗證了控制算法的有效性。
關(guān)鍵詞:MPC;EMPC; 優(yōu)化;CSTR;非線(xiàn)性
Abstract: CSTR is widely used in chemical, fuel, pharmaceutical and other processes. Due to its complex mechanism, multivariable coupling and strong nonlinearity, traditional control of CSTR
is difficult to achieve ideal results. In this paper, based on a general CSTR nonlinear mechanism model, Economic Model Predictive Control (EMPC) control strategy is applied to define the corresponding optimization indexes for different production scenarios. Under the condition of considering the quality, safety and other constraints, the prediction and optimization are directly based on the nonlinear model, which solves the optimization control problem of CSTR process, and verifies the effectiveness of the control algorithm under various control modes.
Key words: MPC; EMPC; Optimization; CSTR; Nonlinear
在線(xiàn)預覽:基于EMPC的CSTR過(guò)程優(yōu)化控制仿真
摘自《自動(dòng)化博覽》2020年5月刊