300MW机组自然循环锅炉运行优化试验  

Operation optimization experiment of natural circulation boiler of 300 MW unit

作　　者：马良 刘国峰 

机构地区：[1]华电能源股份有限公司牡丹江第二发电厂,黑龙江牡丹江157015

出　　处：《华电技术》2014年第1期11-17,77,共7页HUADIAN TECHNOLOGY

摘　　要：针对华电能源股份有限公司牡丹江第二发电厂2×300 MW机组自然循环锅炉存在的问题,提出了锅炉运行优化系统。该系统以试验数据为核心,在运行过程中同步考虑多变量对多项生产指标的影响。通过试验收集了大量运行数据,利用人工神经网络、统计回归分析和模糊数学等工具建立多变量与多目标之间的非线性数学模型,能够提供操作方法,实现在线开环指导锅炉优化运行或闭环控制锅炉优化运行。锅炉运行优化系统在牡丹江第二发电厂的应用显示,该系统可在多重限制条件下降低供电煤耗、氮氧化物,提高了锅炉燃烧的经济性。Aiming at the problems existing in the 2 × 300 MW unit natural circulation boiler of Mudanjiang Second Power Plant of Huadian Energy Company Limited,the operation optimization system was proposed.The system takes the test data as core,the influence of multiple variables on production indexes are considered synchronously in operation.A mass of operation data were collected by experiment.Using several mathematic tools,such as the artificial neural network,the statistic regression analysis and the fuzzy mathematics,a nonlinear mathematical model of the multiple variables and multiple objectives was established.The model can provide operating method and realize the on-line open-loop guidance and close-loop control for boiler optimal operation.The application of the boiler optimal operation system in Mudanjiang Second Power Plant shows that the net coal consumption rate and the nitric oxide emission of the power plant were reduced under multiple limiting conditions,and the economic efficiency of the boiler combustion was improved.

关 键 词：锅炉 运行优化系统 燃烧调整 氮氧化物 多目标优化 模型预测控制 

分 类 号：TK229.52[动力工程及工程热物理—动力机械及工程]