CAJ | 학술논문

火电厂中储式制粉系统钢球磨煤机(球磨机)为多变量耦合、大滞后及非线性复杂被控对象，传统采用的3套独立 PID 控制系统不具有自适应性和解耦性，故自动控制效果不理想。为此，以火电厂中储式制粉系统球磨机为对象，基于预测控制对其进行了控制研究，提出了球磨机控制方法和存在问题，给出了仿真模型，并对球磨机模型预测控制与常规 PID控制进行仿真比较。结果表明，模型预测控制较常规PID控制，控制效果具有显著改善。
화전엄중저식제분계통강구마매궤(구마궤)위다변량우합、대체후급비선성복잡피공대상，전통채용적3투독립 PID 공제계통불구유자괄응성화해우성，고자동공제효과불이상。위차，이화전엄중저식제분계통구마궤위대상，기우예측공제대기진행료공제연구，제출료구마궤공제방법화존재문제，급출료방진모형，병대구마궤모형예측공제여상규 PID공제진행방진비교。결과표명，모형예측공제교상규PID공제，공제효과구유현저개선。
Ball coal mill system is a complicated obj ect with characteristics of multi-variety coupling,nonlin-ear and time-delay.The conventional independent three sets of PID controlling systems have no auto adapt-ability and decoupling ability,so it cannot work steadily for long term and the control effect is not good.By taking the thermal power plant's ball mill pulverizing control system as the research obj ect,the ball mill pulverizing control system's control method and existing problems were investigated,from the view of pre-dictive control.Moreover,the simulation model was established,and simulation comparison between model predictive control and PID control was carried out.The results show that the model predictive control can obtain fairly good results.