中国电力 ›› 2022, Vol. 55 ›› Issue (12): 86-90,123.DOI: 10.11930/j.issn.1004-9649.202107006

• 面向数字化转型的电力系统大数据分析技术 • 上一篇    下一篇

抽水蓄能助力风光稳定外送的最佳配置策略

桑林卫1, 卫璇1, 许银亮1, 孙宏斌2   

  1. 1. 清华大学 清华大学深圳国际研究生院,广东 深圳 518000;
    2. 清华大学 电机工程与应用电子技术系,北京 100084
  • 收稿日期:2021-07-05 修回日期:2021-07-26 发布日期:2022-12-28
  • 作者简介:桑林卫(1996—),男,博士研究生,从事电力系统优化运行研究,E-mail:sanglinwei21@163.com;许银亮(1983—),男,通信作者,博士,副教授,从事电力系统优化运行研究,E-mail:xu.yinliang@sz.tsinghua.edu.cn
  • 基金资助:
    中国科学院学部咨询评议项目(2021-JS01-B-011);中国水利水电科学研究院基本科研业务费专项项目(SS0145C022021);国家重点研发计划资助项目(2018YFE0196000)。

The Optimal Allocation Strategy of Pumped Storage for the Collaborative Operation with Wind/Solar Generation

SANG Linwei1, WEI Xuan1, XU Yinliang1, SUN Hongbin2   

  1. 1. Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518000, China;
    2. Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
  • Received:2021-07-05 Revised:2021-07-26 Published:2022-12-28
  • Supported by:
    This work is supported by Consultation and Evaluation Project of the Chinese Academy of Sciences (No.2021-JS01-B-011), Special Project of Basic Scientific Research Business Expenses of China Institute of Water Resources and Hydropower Research (No.SS0145C022021), and the National Key Research and Development Program of China (No.2018YFE0196000)

摘要: 跨区域、大规模的新能源电力输送是应对国内风光资源与负荷中心逆向分布特点与实现碳中和的必然要求,而风光出力固有的随机性、间歇性和波动性给新能源打捆稳定输送带来了挑战。水电具有的“电源+储能”的双重身份为平抑新能源波动、提升-风-光-水混合能源系统灵活性,以及促进新能源打捆外送提供了解决思路。以抽水蓄能为例,针对风-光-抽水蓄能混合能源系统,提出一种计及抽水蓄能电站运行功率约束、库容约束、进出水量约束的容量配置优化方法,旨在量化抽水蓄能对新能源打捆外送的助力效果,即确定单位抽水蓄能可支撑的新能源外送容量,构建并求解以最小化抽水蓄能投资成本为目标且满足各典型运行场景的容量规划模型。

关键词: 抽水蓄能, 新能源, 打捆稳定输送, 聚类分析, 容量配置

Abstract: Cross-regional transmission of large-scale renewable power generation is an inevitable requirement to deal with the reverse distribution characteristics of domestic wind/solar resources and load centers as well as to achieve carbon neutrality. However, the inherent randomness, intermittence, and volatility of wind/solar generation bring challenges to the transmission and accommodation of renewable power generation. Hydropower, which could serve as both the power source and energy storage, provides a solution for calming the fluctuation of renewable power generation, so as to improve the flexibility of wind-photovoltaic(PV)-hydropower hybrid energy system. Based on the wind-PV-pumped storage hybrid energy system, this paper proposes a capacity allocation method to quantify the effect of pumped storage on renewable power generation delivery, where the operation constraints, capacity constraints, water inflow/outflow constraints are considered. The planning model of minimizing the investment cost of pumped storage and meeting the requirements of each typical operating scenario is constructed and solved.

Key words: pumped storage, renewable energy, bundling and stable transmission, cluster analysis, capacity allocation