摘要
为探究在大规模风电、光伏(简称风光)并网背景下混合式抽水蓄能电站对风光的长周期互补调节能力,以风-光-混蓄联合运行所消纳的风光发电量最大为目的,构建了一种以风-光-混蓄系统剩余负荷方差最小为目标的风-光-混蓄长周期互补发电优化调度模型,并采用逐步优化算法进行求解。算例计算结果表明,与未加装可逆式机组前的风-光-水系统相比,风-光-混蓄系统的风光消纳率期望值提高了8.56%,剩余负荷方差的期望值减小了99.38%,混合式抽水蓄能电站能更好地发挥其风光调节能力,能在满足追踪电网负荷需求的同时提高风光发电的消纳率和风-光-混蓄系统的发电量。
To investigate the long-term complementary regulation capability of hybrid pumped-storage power stations under the background of grid integration of large-scale wind and photovoltaic power,an optimal operation model for long-term complementary power generation of wind-photovoltaic-hybrid storage systems was developed.This model aims to maximize the utilization of wind and photovoltaic power generation in the joint operation of wind-photovoltaic-hybrid storage systems by minimizing the variance of residual load,and it was solved using a progressive optimization algorithm.The results of a case study show that compared with the wind-photovoltaic-hydro system without reversible pump-turbine units,the expected value of the utilization rate of wind and photovoltaic power in the wind-photovoltaic-hybrid storage system increases by 8.56%,and the expected value of the variance of residual load decreases by 99.38%.These results indicate that the hybrid pumped-storage power station can better play its role in regulating wind and photovoltaic power,and can improve the utilization rate of wind and photovoltaic power generation and the power generation capacity of the wind-photovoltaic-hybrid storage system while meeting the demand for tracking grid load.
作者
张验科
罗笙月
卢垚键
王远坤
ZHANG Yanke;LUO Shengyue;LU Yaojian;WANG Yuankun(School of Water Resources and Hydropower Engineering,North China Electric Power University,Beijing 102206,China)
出处
《水利水电科技进展》
北大核心
2025年第4期60-66,共7页
Advances in Science and Technology of Water Resources
基金
国家自然科学基金项目(52279064,U2243224)
中央高校基本科研业务费专项资金项目(2024JC003)。
关键词
风-光-混蓄系统
长周期互补
发电优化调度
风光消纳率
剩余负荷方差
wind-photovoltaic-hybrid storage system
long-term complementary
optimal power generation operation
utilization rate of wind and photovoltaic
variance of residual load
作者简介
张验科(1983-),男,副教授,博士,主要从事水资源与能源科学研究。E-mail:ykzhang2008@163.com;通信作者:王远坤(1981-),男,教授,博士,主要从事水资源与能源科学研究。E-mail:yuankunw@ncepu.edu.cn。
