基于Laguerre函数多模型预测控制的再热汽温控制系统研究  

Multi-model Predictive Control of Reheated Steam Temperature Based on Laguerre Function

作　　者：刘劲权 王明春[1] 唐志炳 陶成飞 

机构地区：[1]东南大学能源与环境学院,南京210096

出　　处：《发电设备》2015年第6期389-393,共5页Power Equipment

摘　　要：针对火电厂再热汽温对象非线性和传统预测控制计算负荷大的问题,将Laguerre函数、状态观测和多模型控制技术相结合,提出了一种基于状态空间的新型预测控制方法,并应用于超临界机组再热汽温控制系统中。仿真结果表明:无论在稳定负荷还是变负荷情况下,该方法均可保持较好的控制品质,且计算负荷明显降低。To solve the problem of nonlinearity existing in reheated steam temperature system of thermal power plants, and to reduce the heavy computing load of traditional predictive control, a new predictive control method based on state space was proposed and applied to the reheated temperature system of a supercritical power plant, which combines the techniques of Laguerre function, state estimation and multi-model control. Simulation results show that via this method, better control quality can be obtained under either stable or variable load conditions, and simultaneously the computing load is obviously reduced.

关 键 词：再热汽温 LAGUERRE函数 预测控制 多模型 

分 类 号：TK323[动力工程及工程热物理—热能工程]