高水头电站甩负荷试验分析  

Analysis on Load Rejection Test of High Head Power Station

作　　者：冯培磊 王斌 陈潇雅 米海堂 戴超 周嘉政 徐天奇[4] FENG Peilei;WANG Bin;CHEN Xiaoya;MI Haitang;DAI Chao;ZHOU Jiazheng;XU Tianqi(State Grid Xinyuan Anhui Jinzhai pumped storage Co.Ltd.,Lu’an 237000,China;Hunan Xiangdian Experimental Research Institute Co.Ltd.,Changsha 410004,China;State Grid Xinyuan Hunan Heimifeng pumped storage Co.Ltd.,Changsha 410205,China;School of electrical and information engineering,Yunnan University for nationalities,Kunming 650500,China)

机构地区：[1]国网新源安徽金寨抽水蓄能有限公司,安徽省六安市237000 [2]湖南省湘电试验研究院有限公司,湖南省长沙市410004 [3]国网新源湖南黑麋峰抽水蓄能有限公司,湖南省长沙市410205 [4]云南民族大学电气信息工程学院,云南省昆明市650500

出　　处：《水电与抽水蓄能》2022年第3期59-64,102,共7页Hydropower and Pumped Storage

基　　金：国家自然科学基金项目(61761049,61461055);云南省应用基础研究计划项目(2017FD120);云南民族大学研究生创新基金校级重点项目(2018YJCXS);云南电网公司技术创新项目(OSOOOOKK52150006)。

摘　　要：为合理利用水电站开发河段水资源、解决电站过机泥沙含量大等问题,在原电站引水发电系统基础上进行改扩建,增加一台机组进行扩容。某水电站的出线较为单一,当线路侧出现故障时,易造成电站全站甩负荷。本文通过对新增机组与相邻两台机组进行甩负荷试验,机组调节过程中压力钢管水压上升率、机组转速上升率、尾水压力脉动、调压井和沉沙池涌浪情况均能满足电站安全运行的要求。In order to make rational use of the water resources in the development reach of the hydropower station and solve the problems of large sediment content in the hydropower station.On the basis of the original water diversion and power generation system of the power station,a new unit is added for capacity expansion.The outgoing line of a hydropower station is relatively single.When the line side fails,it is easy to cause load rejection of the whole station.In this paper,through the load rejection test of the new unit and the two adjacent units,the rise rate of the pressure steel pipe,the rise rate of the unit speed,the tail water pressure pulsation,the surge of the surge shaft and the grit chamber can meet the requirements of the safe operation of the power station.

关 键 词：高水头电站 甩负荷试验 安全稳定 

分 类 号：TV734[水利工程—水利水电工程]