超临界燃煤机组协调系统多模型预测控制  

Multi-Model Predictive Control of Coordinated Control System of Supercritical Power Unit

作　　者：郭红闵 

机构地区：[1]安徽华电六安电厂有限公司,安徽六安237126

出　　处：《工业控制计算机》2021年第7期45-46,132,共3页Industrial Control Computer

摘　　要：为提升超临界燃煤机组的运行灵活性,提出了多模型预测控制策略。为避免由于局部模型或相应局部控制器切换造成的扰动,采用对局部控制器输出加权求和的思路,得到全局优化控制作用,其中各局部控制器权重由拟合间隙度量函数曲线确定。工程应用表明,与原DCS协调控制策略相比,新协调控制系统能有效提高超临界燃煤机组的运行灵活性,同时保证关键参数稳定。In order to improve the operation flexibility of supercritical coal-fired units,the multi-model predictive control strategy is proposed in this paper.To avoid the disturbance caused by local model or local controller switching,the idea of weighted summation of local controller output is adopted to obtain the global optimal control effect,in which the weight of each local controller is determined by the fitted gap metric function curve.Engineering application shows that compared with the original DCS coordinated control strategy,the new coordinated control system can effectively improve the operation flexibility of supercritical coal-fired units and ensure the stability of key parameters.

关 键 词：超临界机组 协调控制系统 多模型 加权求和 

分 类 号：TM621[电气工程—电力系统及自动化]