火电机组风烟系统智能控制模块设计与应用
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摘要
风烟系统是火电机组的重要组成部分。为提高火电机组智能化水平,对风烟系统智能控制的需求进行了分析,设计了智能启动、智能运行、智能停运3大功能组及多个子功能组。各(子)功能组均采用模块化设计,能适应正常运行、检修和故障等各种工况,紧急情况下手动控制优先。仿真及现场应用表明,在无人工干预的情况下,能实现整个风烟系统启动、运行、停运全过程的自动控制,炉膛压力等重要参数控制平稳,提高了火电机组安全性能,减轻了运行人员劳动强度。
The air and flue gas system is an indispensable part of thermal power units. To improve the intelligence level of the thermal power units, the requirements on the intelligent control function module for the air and flue gas system is analyzed, and the functional groups consisting of intelligent startup, operation and shutdown as well as other functional subgroups are designed. Modular design is adopted for each functional group and subgroup, which could be adapted to various operating conditions, such as normal, maintenance, or failure conditions. Manual control is set to be higher priority in case of an emergency. The simulation and application results show that without any manual intervention, by utilizing the intelligent control function module the entire process of startup, operation and shutdown of the air and flue gas system can be controlled automatically and the related important parameters such as furnace pressure are also controlled smoothly. In addition, it can improve the security level of the thermal power units and relieve the labor intensity of operators.
The air and flue gas system is an indispensable part of thermal power units. To improve the intelligence level of the thermal power units, the requirements on the intelligent control function module for the air and flue gas system is analyzed, and the functional groups consisting of intelligent startup, operation and shutdown as well as other functional subgroups are designed. Modular design is adopted for each functional group and subgroup, which could be adapted to various operating conditions, such as normal, maintenance, or failure conditions. Manual control is set to be higher priority in case of an emergency. The simulation and application results show that without any manual intervention, by utilizing the intelligent control function module the entire process of startup, operation and shutdown of the air and flue gas system can be controlled automatically and the related important parameters such as furnace pressure are also controlled smoothly. In addition, it can improve the security level of the thermal power units and relieve the labor intensity of operators.
引文
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[2]杨新民,陈丰,曾卫东,等.智能电站的概念及结构[J].热力发电,2015,44(11):10-13.YANG Xinmin,CHEN Feng,ZENG Weidong,et al.Concept and structure of intelligent power stations[J].Thermal Power Generation,2015,44(11):10-13.
[3]张晋宇,郭鹏,朱赫,等.全生命周期的数字化电厂[J].热力发电,2015,44(7):93-96.ZHANG Jinyu,GUO Peng,ZHU He,et al.Full life cycle based total solution for digital power plants[J].Thermal Power Generation,2015,44(7):93-96.
[4]张建玲,朱晓星,寻新,等.超(超)临界机组智能控制系统设计[J].热力发电,2015,44(5):59-63.ZHANG Jianling,ZHU Xiaoxing,XUN Xin,et al.Design of PICsystem for ultra-supercritical thermal power units[J].Thermal Power Generation,2015,44(5):59-63.
[5]潘凤萍,陈世和,张红福,等.1 000 MW超超临界机组自启停控制系统总体方案设计与应用[J].中国电力,2009,42(10):15-18.PAN Fengping,CHEN Shihe,ZHANG Hongfu,et al.Design and application of 1 000 MW ultra supercritical unit APS system[J].Electric Power,2009,42(10):15-18.
[6]潘凤萍,陈世和,陈锐民,等.火力发电机组自启停控制技术及应用[M].北京:科学出版社,2011.
[7]曾文南,桑永福.机组自启停系统的逻辑设计分析[J].热力发电,2012,41(6):77-79.ZENG Wennan,SANG Yongfu.Analysis of logic design for automatic procedure start-up/shut-down of units[J].Thermal Power Generation,2012,41(6):77-79.
[8]李锋,朱亚清,潘凤萍,等.1 000 MW超超临界机组风烟系统APS功能设计与应用[J].电力自动化设备,2010,30(8):116-120.LI Feng,ZHU Yaqing,PAN Fengping,et al.Design and application of APS function for air and flue gas system of 1 000 MWultra supercritical unit[J].Electric Power Automation Equipment,2010,30(8):116-120.
[9]郭萌,李旭东,宁华兵,等.660 MW超超临界机组风机单列配置方式[J].电力建设,2013,34(10):76-80.GUO Meng,LI Xudong,NING Huabing,et al.Configuration of single-row fan in 660 MW ultra-supercritical unit[J].Electric Power Construction,2013,34(10):76-80.
[10]金生祥,李前宇,何奇善,等.330 MW CFB机组一、二次风机单列布置的设计和应用[J].中国电力,2013,46(2):31-35.JIN Shengxiang,LI Qianyu,HE Qishan,et al.Design and application of single PA/SA fan for 330-MW CFB boilers[J].Electric Power,2013,46(2):31-35.
[11]李毅杰,孙叶柱,杨旭明,等.汽动引风机技术在1 000 MW级机组上的应用[J].中国电力,2012,45(9):17-21.LI Yijie,SUN Yezhu,YANG Xuming,et al.Application of steam-driven induced draft fan to 1 000 MW units[J].Electric Power,2012,45(9):17-21.
[12]陈小强,罗志浩,尹峰,等.背压式汽动引风机调试[J].中国电力,2012,45(8):59-63.CHEN Xiaoqiang,LUO Zhihao,YIN Feng,et al.Debugging for back pressure steam-driven induced-draft fan[J].Electric Power,2012,45(8):59-63.
[13]黄伟,俞犇,王敦敦,等.大型超超临界机组汽动引风机调试技术探讨[J].湖南电力,2015,35(1):56-59.HUANG Wei,YU Ben,WANG Dundun,et al.Discussion on commissioning technology of steam-driven induced-draft fan for large-scale ultra supercritical units[J].Hunan Electric Power,2015,35(1):56-59.