抽水蓄能电站可逆机组关闭规律研究  

Study on the Reversible Pump-turbine Closing Law in Pumped Storage Plant

作　　者：张健[1] 房玉厅 刘徽[2] 周杰[3] 

机构地区：[1]河海大学,江苏南京210098 [2]江苏沙河抽水蓄能发电有限公司,江苏溧阳213333 [3]华东勘测设计研究院,浙江杭州310000

出　　处：《流体机械》2004年第12期14-18,共5页Fluid Machinery

基　　金：水利部科技创新项目 (SCX2 0 0 1-13 )

摘　　要：评述了目前抽水蓄能可逆机组常用的分段折线关闭规律 ;针对可逆机组独特的过流特性 ,设计了具有延时段的三段折线关闭规律 ,在减少总关闭时间的同时 ,有效的降低了抽水蓄能可逆机组由于导叶关闭与机组转速上升联合作用引起的水锤压力 ;介绍了考虑转速信号反馈的可逆机组导叶关机规律 ;为抽水蓄能可逆机组的事故紧急关机规律的设计提供了一种新思路。The broken-line closing law of reversible pump-turbine usually used in pumped storage plants is analyzed and discussed. Based on complete hydraulic characteristic of reversible pump-turbine, the broken-line closing law of three segments with delayed segment is designed. Water hammer pressure in pumped storage plant conveyance system caused by the closure of wicket gate and turbine rotation speed rise together is effectively decreased in the meaning time the total closure time is reduced. The wicket gate closing law of reversible pump-turbine with the rotation speed feedback signal is introduced also, a new idea for the design of the reversible pump-turbine sudden closing law is proposed.

关 键 词：抽水蓄能电站 可逆机组 水锤 关机规律 

分 类 号：TK7[动力工程及工程热物理—流体机械及工程]