摘要
针对可逆机组过渡过程过流特性，通过计算分析，优选出以不同水头为基准下适合的导叶关闭规律。通过比对水轮机工况甩负荷情况下过渡过程参数变化及合理程度，得出结论：对于400m以上水头的抽水蓄能电站宜采用一段直线关闭规律；300—400m之间水头的抽水蓄能电站宜采用直线关闭或延时直线关闭规律；在300m以下水头的抽水蓄能电站宜使用先快后慢两段折线关闭规律。
In view of the flow characteristics of transition process of reversible pump-turbine, suitable guide vane closing laws of pump-turbine operating in different water head are selected based on calculation analysis. By comparing the parameter changes and rationality of transient process under turbine operation condition and load rejection, it is concluded that the linear closing law is suitable for pumped-storage power stations with water head more than 400 m, the linear closing law or delayed linear closing law is suitable for the stations with water head between 300 m to 400 m, and the two-segment closing law with first faster and then slower is suitable for the stations with water head under 300 m.
出处
《水力发电》
北大核心
2016年第12期85-89,共5页
Water Power
关键词
抽水蓄能
过渡过程
水头
导叶关闭规律
水泵水轮机
甩负荷
pumped-storage
transient process
water head
closing law of guide vane
pump turbine
load rejection
