汽轮机阀门流量特性曲线优化方法研究  

Research on Optimization Method for Flow Characteristic Curve of Steam Turbine Valve

作　　者：亓振烨 杜之正 QI Zhenye;DU Zhizheng(Shandong Branch of Huadian Electric Power Research Institute Co.,Ltd.,Jinan,Shandong 271099,China)

机构地区：[1]华电电力科学研究院有限公司山东分院,山东济南271099

出　　处：《东北电力技术》2023年第10期59-62,共4页Northeast Electric Power Technology

摘　　要：汽轮机阀门流量特性试验目的是检查汽轮机等效流量曲线与理想流量曲线的吻合度。通过汽轮机调门流量特性试验,修正汽轮机调门流量特性函数,使其与实际相符,从而改善AGC控制性能和一次调频质量,保证机组安全、稳定和经济运行。以某机组为例,分析汽轮机单阀及顺序阀调门流量特性,根据DEH流量指令与等效流量之间的线性关系,对流量特性函数进行校正,拟合出合理的阀门流量曲线。The purpose of the valve flow characteristic test of the steam engine is to check the degree of agreement between the equiva-lent flow curve of the steam engine and the ideal flow curve.Through the valve flow characteristic test of the steam engine,the valve flow characteristic function is modified,so that it is consistent with the reality.The AGC control performance and the primary frequen-cy modulation quality are improved,and the safety,stability and economic operation of the unit are guaranteed.Combined with the data of a unit,the flow characteristics of single valve and sequence valve are analyzed.According to the linear relationship between DEH flow command and equivalent flow,the flow characteristic function is corrected,and the reasonable valve flow curve is fitted by linear regression equation.

关 键 词：阀门流量 特性函数 曲线优化 

分 类 号：TM621[电气工程—电力系统及自动化]