Identification method for flow characteristics of steam turbine based on characteristic flow area

WANG Gang; LI Cunwen; LIANG Zhengyu; YANG Tao; ZHANG Yanping; GAO Wei

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Identification method for flow characteristics of steam turbine based on characteristic flow area

Thermal Power Generation Issue 5, (2016)

更新时间：2025-09-28

- Identification method for flow characteristics of steam turbine based on characteristic flow area
- 作者机构：
  
  1. 国网河南省电力公司电力科学研究院,河南,郑州,450052
  2. 华中科技大学能源与动力工程学院,湖北,武汉,430074
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK267
- Published Online：15 June 2016，
  
  Published：2016
- 稿件说明：
移动端阅览
WANG Gang, LI Cunwen, LIANG Zhengyu, et al. Identification method for flow characteristics of steam turbine based on characteristic flow area[J]. Thermal Power Generation, 2016, (5).
DOI：

WANG Gang, LI Cunwen, LIANG Zhengyu, et al. Identification method for flow characteristics of steam turbine based on characteristic flow area[J]. Thermal Power Generation, 2016, (5). DOI：

摘要

对于长期运行后的机组

经常出现汽轮机某些阀位区间负荷响应良好而某些阀位区间负荷响应不理想

究其原因为汽轮机调节阀组的流量特性发生偏离。为使汽轮机流量特性的设定与实际相匹配

本文通过对某660 MW机组汽轮机运行历史数据的挖掘和分析

结合其特征通流面积的特点

提出了一种新的流量特性曲线辨识方法。应用结果表明：该方法可有效辨识出汽轮机额定主蒸汽压力下的流量特性曲线；分段线性优化了流量管理函数；提高了顺序阀模式下汽轮机整体流量特性线性度；重新确定了阀间重叠度，为同类机组汽轮机的流量特性曲线辨识优化提供了参考。

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