水力发电学报2024，Vol.43Issue(10)：76-84,9.DOI:10.11660/slfdxb.20241007
快速功率波动下大型定/变速机组的响应特性研究
Response characteristics of large fixed-speed and variable-speed pumped-storage units under fast power fluctuations
摘要
Abstract
This study compares the responses of large fixed-speed and variable-speed pumped-storage units to fast power fluctuations through numerical simulations.We examine their response characteristics under power fluctuations of nine sets different in amplitude and frequency.The power response characteristics of the units are analyzed using four quantitative evaluation indicators-mean and standard deviations of power differences,mean response time for power rise(fall),and power delay.The results show that variable-speed generating units not only effectively respond to rapid fluctuations in the renewable energy output within seconds,but their response capabilities are superior to those of traditional large fixed-speed pumped-storage units.This further emphasizes the importance of variable speed units in coping with renewable energy fluctuations.关键词
可变速抽水蓄能机组/快速功率控制/功率优先控制/功率评估指标/动态特性Key words
variable speed pumped storage unit/fast active power control/active power control priority/active power evaluation indicators/dynamic characteristics分类
能源与动力引用本文复制引用
汪玉清,周大庆,冯陈..快速功率波动下大型定/变速机组的响应特性研究[J].水力发电学报,2024,43(10):76-84,9.基金项目
国家自然科学基金(51979086) （51979086）
