化工学报2012，Vol.63Issue(12)：3965-3970,6.DOI:10.3969/j.issn.0438-1157.2012.12.032
非线性Hammerstein模型预测控制策略及其在pH中和过程中的应用
Nonlinear Hammerstein model predictive control strategy and its application to pH neutralization process
摘要
Abstract
Industrial processes usually contain complex nonlinearities. For example,the control of pH neutralization processes is a challenging problem in the chemical process industry because of their inherent strong nonlinearity. In this paper,the model predictive control (MPC) strategy is extended to a nonlinear process using Hammerstein model that consists of a static nonlinear polynomial function followed in series by a linear difference equation dynamic element. The calculation strategy of optimal control output based on the static nonlinear polynomial function of the Hammerstein model is presented in detail. Thus a new nonlinear Hammerstein predictive control strategy ( NLHPC) is developed. Simulation and control experiments of a pH neutralization process show that NLHPC gives better control performance than the commonly used industrial nonlinear PID (NL-PID) controller.关键词
Hammerstein模型/模型预测控制/pH中和过程/非线性控制Key words
Hammerstein model/model predictive control/pH neutralization process/nonlinear control分类
信息技术与安全科学引用本文复制引用
邹志云,郭宇晴,王志甄,刘兴红,于蒙,张风波,郭宁..非线性Hammerstein模型预测控制策略及其在pH中和过程中的应用[J].化工学报,2012,63(12):3965-3970,6.基金项目
国家留学基金项目(21302095). （21302095）
