Predictive control and economic performance optimization of CFBB combustion process

doi:10.11949/j.issn.0438-1157.20151939

CIESC Journal ›› 2016, Vol. 67 ›› Issue (3): 695-700.DOI: 10.11949/j.issn.0438-1157.20151939

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Predictive control and economic performance optimization of CFBB combustion process

XIE Lei¹, MAO Guoming², JIN Xiaoming¹, SU Hongye¹

1. State Key Laboratory of Industrial Control Technology, Institute of Cyber-System and Control, Zhejiang University, Hangzhou 310027, Zhejiang, China;
2. Zhejiang Huaneng Yuhuan Power Plant, Yuhuan 317604, Zhejiang, China

Received:2015-12-21 Revised:2016-01-05 Online:2016-01-12 Published:2016-03-05
Contact: 67
Supported by:
supported by the National Natural Science Foundation of China (61134007, 61374121).

循环流化床锅炉燃烧过程预测控制与经济性能优化

谢磊¹, 毛国明², 金晓明¹, 苏宏业¹

1. 浙江大学工业控制技术国家重点实验室, 智能系统与控制研究所, 浙江杭州 310027;
2. 浙江华能玉环电厂, 浙江玉环 317604

通讯作者: 谢磊
基金资助:
国家自然科学基金项目(61134007,61374121)。

Abstract

Abstract:

For the combustion process of industrial circulating fluidized bed boiler (CFBB) with nonlinearity, time-variation, strong delay and multivariable coupling, considering how to satisfy the economic target with decreasing power consumption, an two level multivariable predictive control (MPC) method was proposed. The method based on the constrained control of main steam pressure, bed temperature and flue gas oxygen content is constructed to optimize the economic target. The industrial application result demonstrates that the proposed method can decrease the coal consumption of unit steam while assuring the steady of the main process parameters of the boiler combustion and bring high economical profit.

Key words: circulating fluidized bed boiler, predictive control, process control, optimization, coal combustion

摘要：

针对循环流化床锅炉燃烧过程多变量耦合、时滞、非线性等复杂过程特性和经济运行要求,提出了一种结合经济性能优化与多变量控制的双层预测控制策略,可在实现主蒸汽压力、料床温度和烟气含氧量约束控制的基础上,优化燃烧过程的经济性能。工业应用实例表明,该控制策略不仅能有效提高燃烧过程主要工艺参数的平稳性,而且能降低单位蒸汽的燃煤消耗量,具有显著的经济效益。

关键词: 循环流化床锅炉, 预测控制, 过程控制, 优化, 煤燃烧

CLC Number:

TP273

XIE Lei, MAO Guoming, JIN Xiaoming, SU Hongye. Predictive control and economic performance optimization of CFBB combustion process[J]. CIESC Journal, 2016, 67(3): 695-700.

谢磊, 毛国明, 金晓明, 苏宏业. 循环流化床锅炉燃烧过程预测控制与经济性能优化[J]. 化工学报, 2016, 67(3): 695-700.

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Predictive control and economic performance optimization of CFBB combustion process

循环流化床锅炉燃烧过程预测控制与经济性能优化

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