综合智慧能源 ›› 2025, Vol. 47 ›› Issue (10): 45-51.doi: 10.3969/j.issn.2097-0706.2025.10.005

• 新能源与储能系统优化 • 上一篇    下一篇

基于二次EMD分解的风电场混合储能系统配置优化

张凯1(), 王金袖2,*(), 杨雪峰1, 王强1, 肖盛忠1, 李鹏1, 孙成武1   

  1. 1.内蒙古华电辉腾锡勒风力发电有限公司内蒙古 乌兰察布 013550
    2.华电电力科学研究院有限公司杭州 310030
  • 收稿日期:2024-09-18 修回日期:2024-11-13 出版日期:2025-01-06
  • 通讯作者: *王金袖(1993),男,工程师,硕士,从事新能源发电方面的研究,zyhnlh@yeah.net
  • 作者简介:张凯(1974),男,高级工程师,硕士,从事风光火储配置与运行优化方面的研究,214232219@qq.com
    杨雪峰(1976),男,高级政工师,从事风光电站运行管理方面的研究;
    王强(1981),男,高级工程师,从事并网技术方面的研究;
    肖盛忠(1986),男,高级工程师,从事多能互补优化运行方面的研究;
    李鹏(1984),男,高级工程师,硕士,从事电化学储能优化配置方面的研究;
    孙成武(1972),男,工程师,从事风光出力特性方面的研究。
  • 基金资助:
    中国华电集团有限公司科技项目(CHDKJ23-02-292)

Configuration optimization of hybrid energy storage systems in wind farms based on secondary EMD

ZHANG Kai1(), WANG Jinxiu2,*(), YANG Xuefeng1, WANG Qiang1, XIAO Shengzhong1, LI Peng1, SUN Chengwu1   

  1. 1. Inner Mongolia Huadian Huitengxile Wind Power Company LimitedUlanqab 013550, China
    2. Huadian Electric Power Research Institute Company LimitedHangzhou 310030, China
  • Received:2024-09-18 Revised:2024-11-13 Published:2025-01-06
  • Supported by:
    Science and Technology Project of China Huadian Corporation Limited(CHDKJ23-02-292)

摘要:

“双碳”目标下,以风力发电为主的新型电力系统成为我国能源发展的新方向。风力发电具有波动性、间歇性,并网时会影响电网安全可靠运行。混合储能系统(HESS)可以有效解决风电波动性问题,但如何优化配置和任务分配是关键。建立了锂电池-超级电容器HESS,系统工作时部分低频分量直接并网,剩余部分为混合储能工作任务,超级电容器消纳高频分量,锂电池消纳中频分量。通过经验模态分解(EMD)获得风电功率直接并网量和混合储能任务量,对混合储能任务量进行二次EMD分解并重构,获得超级电容器和锂电池的工作任务,降低了HESS容量配置难度,提高了风电消纳能力。与传统方案相比,所提方案投资维护成本减少约5.3%,系统极端情况下的运行稳定性更强。

关键词: “双碳”目标, 新型电力系统, 风电场, 混合储能系统, 超级电容器, 锂电池, 经验模态分解, 容量配置

Abstract:

Wind-power-based new power systems have become the new development trend in pursuit of "dual carbon" goals. As wind power is volatile and intermittent, its grid connection may compromise the safety and reliability of the power grid. Hybrid energy storage systems(HESS) can mitigate the wind power fluctuation, making their optimal configuration and task allocation critical. This study constructed a HESS combining supercapacitors and lithium-ion batteries: low-frequency power was directly grid-connected, while the remaining power was stored. The middle-frequency component was stored in lithium batteries and high-frequency component was stored in supercapacitors. Grid-connected wind power and HESS storage power were quantified via empirical mode decomposition(EMD). The latter was further decomposed and reconstructed through secondary EMD, allocating the operational tasks between supercapacitors and lithium batteries. This approach reduces the difficulty in HESS capacity configuration and improves wind power absorption capacity. Compared to traditional solutions, the proposed approach reduces investment and maintenance costs by approximately 5.3%, while enhancing system operational stability under extreme conditions.

Key words: "dual carbon" goal, new power system, wind farm, hybrid energy storage system, supercapacitor, lithium battery, empirical mode decomposition, capacity configuration

中图分类号: