水利学报Issue(2)：229-238,10.DOI:10.13243/j.cnki.slxb.2015.02.013
多机共尾水调压室流道结构水轮机调节振荡研究
Study on regulating oscillation in multi hydro turbine generators sharing flow channel structure of tailrace surge tank
张辉 1胡钋1
作者信息
- 1. 武汉大学 电气工程学院，湖北 武汉 443000
- 折叠
摘要
Abstract
The regulating quality of hydro turbine generator governor system has become one of the impor⁃tant indicators in modern power systems. This paper presents multi hydro turbine generators sharing flow channel structure of tailrace surge tank and the corresponding mathematical model, the analysis results of mathematical simulation and actual recording indicate that the mutual interference phenomenon between multi hydro turbine generators exists and can cause control process oscillation during the regulating process. The parameters that cause oscillation in large disturbance are analyzed through mathematical model. In this paper,taking 3 hydro turbine generators which share flow channel structure of tailrace surge tank as an ex⁃ample,and by analyzing control system transfer function which includes the channel hydraulic structure,hy⁃dro turbine regulating system is selected as an optimize direction, and oscillation controller is designed with appropriate parameters in order to restrain regulating oscillation caused by such flow channel structure and implement acceleration of convergence and stability in dynamic control process. The field test proves the effectiveness of the proposed controller.关键词
流道结构/尾水调压室/水轮机调节/状态方程/振荡控制Key words
flow channel structure/tailrace surge tank/hydro turbine governor/state equation/oscillation control分类
能源科技引用本文复制引用
张辉,胡钋..多机共尾水调压室流道结构水轮机调节振荡研究[J].水利学报,2015,(2):229-238,10.
