135 MW掺烧煤气燃煤发电机组协调控制系统优化  

Coordinated Control System Optimization for 135 MW Coal-Fired Generating Units with Blended Gas

作　　者：蔡伟 任曼曼 蔡兵 施壮 CAI Wei;REN Manman;CAI Bing;SHI Zhuang(Electric Power Research Institute of State Grid Anhui Electric Power Co. , Ltd. , Hefei 230601, China)

机构地区：[1]国网安徽省电力有限公司电力科学研究院,安徽合肥230601

出　　处：《安徽电气工程职业技术学院学报》2019年第1期90-93,共4页Journal of Anhui Electrical Engineering Professional Technique College

摘　　要：针对某钢铁企业一台135 MW掺烧煤气燃煤机组煤气流量扰动大、协调控制方式难以投运的问题,通过开展阶跃扰动特性试验建立焦炉、高炉、转炉煤气与主蒸汽压力之间的数学关系模型,设计了超前滞后补偿控制器,并在机组DCS控制平台组态应用,运行结果表明,该方法可以实现煤气流量扰动下主汽压力稳定控制,保证了协调控制系统正常投运。Aiming at big fluctuations of gas flow and difficulties in putting the coordinated control system into operation for 135 MW coal-fired generating units with blended gas, this paper establishes a mathematical relation model between coke oven gas, blast furnace gas, converter gas and the main-steam pressure through step disturbance tests respectively, and then designs lead-lag compensation controller, which is applied to the generating units based on its DCS control platform. The results show that the method can achieve stable control of main-steam pressure under gas flow disturbance, which ensures the normal operation of the coordination control system.

关 键 词：掺烧煤气燃煤机组 混合煤气 超前滞后补偿控制器 协调控制系统优化 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]