摘要
某水利枢纽工程的扬程/水头变化范围大,难以完全满足水泵水轮机组性能指标的要求,需要通过变转速方式进行解决。通过采用变频调速技术,实现了水泵水轮机组既能变频抽水,又能变频发电,从而解决了抽水工况扬程变化范围和发电工况水头变化范围大的技术难题。研究方法提高了供水保证率,增加了发电效益。
Because of the large head variation range in one water control project,it is difficult to fully meet the performance requirements of the pump turbine unit,and this problem needs to be solved by means of variable speed.By using frequency conversion and speed regulation technology,for the first time,the pump turbine unit can not only pump water with frequency conversion,but also generate electricity with frequency conversion,thus solving the technical problems of large range of head variation both under pumping condition and under power generation condition.The research method can improve the guarantee rate of water supply and the economic benefit of power generation.
作者
张晓晗
胡静
毛敏
姚雄
ZHANG Xiaohan;HU Jing;MAO Min;YAQ Xiong(Shaanxi Provincial Institute of Water Resources and Electric Power Investigation and Design,Xi’an 710001,Shaanxi,China)
出处
《电网与清洁能源》
北大核心
2021年第3期120-124,共5页
Power System and Clean Energy
基金
陕西省水利科技项目(2017slkj-31)。
关键词
扬程/水头
变频调速
变极调速
水泵水轮机
四象限变频器
water-head
variable frequency speed control
speed control by pole changing
pump turbine
four-quadrant converter
