汽轮机高压调节汽阀流量特性曲线优化提高AGC和一次调频响应能力的应用  

Application of improving AGC and frequency modulation response capability by optimizing flow characteristic curve for high-pressure regulating steam valve

作　　者：赵强[1] ZHAO Qiang(Jiangsu Xukuang Comprehensive Utilization Power Generation Co.,Ltd.,Xuzhou,Jiangsu,221137)

机构地区：[1]江苏徐矿综合利用发电有限公司,江苏徐州221137

出　　处：《煤炭科技》2020年第6期87-89,共3页Coal Science & Technology Magazine

摘　　要：汽轮机的高压调节汽阀(以下简称GV)是蒸汽进入汽轮机做功的直接控制部件,在日常生产过程中实时调整发电负荷,保证AGC响应灵敏且准确,以满足电网用电需求;同时保证一次调频动作的精度,控制电能质量。GV流量特性曲线作为DEH调节系统的核心,其出现偏差将造成负荷摆动、调频动作幅度大且波动频繁等一系列问题。为解决存在问题,通过实施针对性优化措施实现安全、高效运行。The high-pressure regulating steam valve(GV)of steam turbine is a direct control part of steam entering the steam turbine to do work.In the daily production process,real-time adjustment of power generation load is carried out to ensure the accurate and sensitive response of AGC to meet the power demand of power grid;at the same time,the accuracy of primary frequency regulation action is guaranteed to control the power quality.As the core of DEH control system,the flow characteristic curve of high-pressure control valve will cause load swing when there is deviation,which will cause a series of problems such as large amplitude and frequent fluctuation of control valve.Through targeted optimization was carried out to solve the existing problems,so as to achieve safe and efficient operation.

关 键 词：高压调节汽阀 流量特性曲线 阀门重叠度 一次调频试验 

分 类 号：TM621[电气工程—电力系统及自动化]