IGCC汽轮机旁路系统性能优化  

Research on Performance Optimization of IGCC Turbine Bypass Control System

作　　者：丁建博 张宇 冯松 周广利[1] 段进宽 陈智[2] 白力 DING Jianbo;ZHANG Yu;FENG Song;ZHOU Guangli;DUAN Jinkuan;CHEN Zhi;BAI li(Huaneng Tianjing IGCC Co.,Ltd.,Tianjin 300452,China;China Huaneng Clean Energy Research Institute,Beijing 102209,China;Huaneng Tongliao Wind Power Co.,Ltd.,Tongliao,Inner Mongolia 028000,China)

机构地区：[1]华能(天津)煤气化发电有限公司,天津300452 [2]中国华能集团清洁能源技术研究院有限公司,北京102209 [3]华能通辽风力发电有限公司,内蒙古通辽028000

出　　处：《广东电力》2023年第4期124-130,共7页Guangdong Electric Power

基　　金：中国华能科技项目(HNKJ20-H57)。

摘　　要：某整体煤气化联合循环(integrated gasification combined cycle,IGCC)发电示范电站机组启停时余热锅炉和汽轮机系统压力增大,易导致旁路装置执行机构机械损坏或旁路装置失控;旁路系统逻辑设置不合理,存在误跳燃气轮机风险。针对上述问题,对旁路装置执行机构进行分体改造,以提升旁路系统性能。优化执行机构气路,取消气控放大器,采用大流量定位器,提高旁路装置控制精度;在旁路阀控制逻辑中引入最小开度(10%)参数,解决误跳燃气轮机的逻辑隐患问题。采取上述优化措施后,可提高IGCC汽轮机旁路系统可靠性。During the start-up and shutdown process,the pressure of the heat recover steam generator(HRSG)and turbine system of the unit of one integrated gasification combined cycle(IGCC)demonstration power station increases,leading to mechanical damages to the bypass device actuator or malfunction and control failure of the bypass device.At the same time,the logic setting of the bypass system is unreasonable,which poses a risk of accidental activation of the gas turbine.In view of the above problems,the actuator of the bypass device is reformed to improve the performance of the bypass system.The gas circuit of the actuator is optimized by eliminating the gas control amplifier and adopting a high-flow locator to improve the precision of the bypass device control.The control logic of the bypass valve is modified to introduce a minimum opening of 10%to solve the hidden dangers of accidental activation of the gas turbine.It is able to improve the reliability of the IGCC turbine bypass system by adopting these optimization measures.

关 键 词：整体煤气化联合循环 汽轮机旁路控制 故障分析 装置优化 逻辑优化 

分 类 号：TM621[电气工程—电力系统及自动化]