一种改进的协调控制系统广义预测控制方法  

An Improved Generalized Predictive Control Method for Coordinated Control System

作　　者：焦健 JIAO Jian(Beijing BEH Technology Co.,Ltd.,Beijing 100036,China)

机构地区：[1]北京京能科技有限公司,北京100036

出　　处：《山西电力》2022年第4期31-35,共5页Shanxi Electric Power

摘　　要：介绍了一种改进的协调控制系统的广义预测控制算法,与现有的算法相比,做出了两点改进:一是使用对角受控自回归积分滑动平均模型推导模型的输出预测值,避免了丢番图方程的计算,减小了计算量;二是将过热度的控制方式由定值控制改为区间控制,充分利用系统的控制“冗余”,提高了主汽压力和负荷的控制效果。仿真结果表明,这种改进的广义预测控制算法相比现有的方法,计算量小,能同时实现定值控制和区间控制方式,全面提高了主汽压力和负荷的控制效果。An improved generalized predictive control algorithm for coordinated control system is introduced.Compared with the existing algorithms,two improvements are made.Firstly,the diagonal CARIMA model is used to deduce the output prediction value of the model,which helps to avoid the calculation of Diophantine equation and reduces the amount of calculation;secondly,the control mode of superheat is changed from fixed value control to interval control,which makes full use of the control"redundancy"of the system,and improves the control effect of main steam pressure and load.Simulation results show that,compared with the existing methods,the amount of calculation of the improved generalized predictive control algorithm is reduced,which can help to realize fixed value control and interval control at the same time,and improve the control effect of main steam pressure and load.

关 键 词：协调控制系统 广义预测控制 对角CARIMA模型 区间控制 

分 类 号：TM621[电气工程—电力系统及自动化]