三峡大学学报（自然科学版）2017，Vol.39Issue(4)：5-9,5.DOI:10.13393/j.cnki.issn.1672-948X.2017.04.002
长引水式水电站小波动影响因素分析
Analysis of Influence Factors on Small Fluctuation of Long Diversion Type Hydropower Station
摘要
Abstract
Based on the one-dimensional transient flow theory,a numerical simulation of the influence factors of the small fluctuation of long diversion hydropower stations is conducted by using the characteristic line method which considers the water elasticity.The effects of the area of surge chamber,the area of impedance hole,the self regulating coefficient of power network load and the parameters of the governor on the small fluctuation are analyzed by using a specific engineering case study.The corresponding calculation results show that the larger the area of surge chamber,the better the stability of small fluctuations;The area of surge chamber meeting the stability of small fluctuations should be larger than Thomas stability section The smaller the impedance hole area is,the more conducive to improving the quality of small fluctuations.The grid load properties can improve the stability and the regulation quality of small fluctuation notablely.The smaller governor parameteris,the better regulation quality of small fluctuation under the premise of satisfying the small fluctuation stability.关键词
长引水式水电站/小波动/数值模拟Key words
long diversion type hydropower station/small fluctuation/numerical simulation分类
建筑与水利引用本文复制引用
谢辉,张健,俞晓东..长引水式水电站小波动影响因素分析[J].三峡大学学报（自然科学版）,2017,39(4):5-9,5.基金项目
国家自然科学基金(51379064) （51379064）
