基于调门节流的二次再热机组负荷响应特性研究  

Research on Load Response Characteristic of Double-reheat UnitBased on Control Valve Throttling

作　　者：凌晨 杨建明[1] 王昌朔 LING Chen;YANG Jian-ming;WANG Chang-shuo(School of Energy and Environment,Southeast University,Nanjing 210096,China;Key Laboratory of Nuclear Reactor System Design Technology,Nuclear Power Institute of China,Chengdu 610213,China)

机构地区：[1]东南大学能源与环境学院,南京210096 [2]中国核动力研究设计院核反应堆系统设计技术重点实验室,成都610213

出　　处：《汽轮机技术》2020年第2期132-136,共5页Turbine Technology

摘　　要：针对超超临界二次再热机组并网运行过程中存在负荷快速响应能力不足的问题,以1000MW超超临界二次再热机组为研究对象,基于LabVIEW软件,开发超超临界二次再热机组动态仿真试验平台,仿真分析基于调门节流方式的二次再热机组负荷动态响应特性,并与一次再热机组进行对比。分析结果表明:在相同的阀位指令下,二次再热机组的负荷响应能力滞后于一次再热机组,为满足电网的AGC和一次调频的考核,二次再热机组需预留较大比例的主汽压力节流运行。In view of insufficient rapid load response of ultra-supercritical double-reheat unit,taking 1000MW ultra-supercritical double-reheat unit as the research object,and the ultra-supercritical secondary reheat unit was developed based on LabVIEW software.The dynamic simulation test platform simulated the load response characteristics of double-reheat unit based on control valve throttling mode and compared it with single reheat unit.The analysis results showed that the load response capability of double-reheat unit laged behind that of single reheat unit under the same valve position command.In order to meet the assessment of AGC and primary frequency control from the power grid,double-reheat unit needs to reserve larger proportion of steam pressure throttling.

关 键 词：超超临界 二次再热 调门节流 负荷响应能力 

分 类 号：TM621[电气工程—电力系统及自动化]