摘要
某轴流转桨式机组水电站通过提高下游水位来增加其所在河流的通航能力。为适应新的尾水位高度,该电站对其轴流转桨式水轮机进行了改造。本文研究了改造前后该轴流转桨式水电机组调节系统的稳定性问题,通过建立单机单管轴流转桨式水电机组调节系统的数学模型,基于根轨迹分析法研究了改造前后系统参数变化时的响应特征,得出系统的变化规律和特征,以确定系统的稳定运行参数范围。此外,本文还考虑了系统随动参数变化对机组稳定性的影响。该研究为该轴流转桨式水电机组调速系统的正常运行提供了理论指导。
An axial flow kaplan hydro-power station increases the navigation capacity of its river by raising the downstream water level.In order to adapt to the new height of tail water level,the axial flow kaplan turbine of the power station has been modified.In this paper,the stability of the governing system of the axial flow kaplan hydro-power unit before and after the retrofit is studied.Through the establishment of the mathematical model of the governing system of single-tube kaplan hydro-power unit,the response characteristics of the system parameters before and after the transformation are studied based on the root locus analysis method,and the changing rules and characteristics of the system are obtained.to determine the range of stable operation parameters of the system.In addition,the influence of the change of system follow-up parameters on the stability of the unit is also considered in this paper.This study provides theoretical guidance for the normal operation of the speed control system of the axial flow kaplan hydro-power unit.
作者
彭云水
王昕
邹屹东
肖志怀
Peng Yunshui;Wang Xin;Zou Yidong;Xiao Zhihuai(Fujian Shuikou Power Generation Group Co.,Ltd.,Fuzhou,Fujian 350000;School of Power and Machinery,Wuhan University,Wuhan 430072,Hubei)
出处
《吉林水利》
2023年第4期1-5,14,共6页
Jilin Water Resources
基金
国网福建省电力有限公司科技项目“功率模式下水轮机调节系统建模、稳定性分析与非线性滑模控制策略研究”(项目号:5213S0170004)。
