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约束冗余参数模型预测控制及其在热交换过程中的应用 被引量:4

CONSTRAINED MODEL PREDICTIVE CONTROL ALGORITHM WITH REDUNDANT PARAMETERS AND ITS APPLICATION TO HEAT EXCHANGER
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摘要 在系统阶跃响应的基础上 ,根据最小绝对误差准则 ,用一个具有少量冗余参数的模型逼近实际系统的阶跃响应 ,提出了一种有约束冗余参数模型预测控制算法 .由于冗余参数模型的参数比非参数模型少得多 ,多步预测和滚动优化的计算量大为减小 .为了校正模型逼近带来的误差 ,引入了PID反馈校正环节 ,从而有效地克服了模型误差的不利影响 .最后利用热交换过程的阶跃响应数据进行了计算机仿真研究 。 Due to easy modeling and good robust properties of non-parametric model predictive control based on the step response of a process,it is extensively used in process control. However, the superfluous parameters of non-parametric model predictive control lead to heavy computational burden in the computation of process predictive output and online receding horizon optimization. To overcome the above demerits of non-parametric model predictive control, on the basis of step response of a process, the constrained...
出处 《磁流体发电情报》 EI CAS 2004年第3期396-401,共6页
基金 国家自然科学基金资助项目 (No 2 0 2 0 60 2 8)~~
关键词 化学反应器 热交换过程 约束冗余参数模型 预测控制 constraints redundant-parameter model non-parametric model least absolute error PID feedback correction heat-exchanger
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