| 洪建军,郑建锋,束兰兰,郑振华,吴俊飞,何育钦.面向规模化新能源并网的混合储能调频控制策略[J].高技术通讯(中文),2026,36(8):872~882 |
| 面向规模化新能源并网的混合储能调频控制策略 |
| Hybrid energy storage frequency regulation control strategy for large-scale renewable energy grid integration |
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| DOI：10. 3772 / j. issn. 1002 - 0470. 2026. 08. 009 |
| 中文关键词: 新能源汇集站； 混合储能； 一次调频； 分频指令； 虚拟惯性； 荷电状态恢复 |
| 英文关键词: renewable energy gathering station, hybrid energy storage, primary frequency regulation, frequency division command, virtual inertial, state of charge self-recovery |
| 基金项目: |
| 作者 | 单位 | | 洪建军 | （国网浙江省电力有限公司衢州供电公司衢州 324000） | | 郑建锋 | | | 束兰兰 | | | 郑振华 | | | 吴俊飞 | | | 何育钦 | |
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| 摘要点击次数: 18 |
| 全文下载次数: 15 |
| 中文摘要: |
| 大规模新能源发电站通常在高压汇集站处实现并网，在汇集站处增加调频控制功能是实现新能源并网的一种重要手段。本文提出了一种面向规模化新能源并网的混合储能调频控制策略。当电网频率超过混合储能调频死区时，频率波动的高频部分由电池储能调节，低频部分由抽蓄电站调节。电池储能部分通过双重惯性控制与下垂控制综合调控，在频率变化初期采用正虚拟惯性抑制频率变化趋势，在频率恢复期采用负虚拟惯性加快恢复。同时在整个调频期内采用变系数下垂控制，可在保证调频需求的同时维持荷电状态(state of charge，SOC)在工作区间。另外，当频率未超过调频死区时，采用SOC自恢复控制使电池储能SOC恢复到设定值，加强电池储能参与长时间调频的能力。最后在数字实时仿真系统RT1000中搭建了浙江某汇集站的调频模型，对新能源参与电网一次调频进行了仿真，验证了所提策略的可行性和有效性。 |
| 英文摘要: |
| Large-scale new energy power stations usually connect to the grid at high-voltage collection stations. Adding frequency modulation control functions at collection stations is an important means to achieve the grid connection of new energy. This paper proposes a hybrid energy storage frequency modulation control strategy for large-scale new energy grid connection. When the grid frequency exceeds the dead zone of the hybrid energy storage frequency modulation, the high-frequency part of the frequency fluctuation is regulated by battery energy storage, and the low-frequency part is regulated by pumped storage power stations. The battery energy storage part is comprehensively regulated by dual inertia control and droop control. Positive virtual inertia is adopted in the initial stage of frequency change to suppress the frequency change trend, and negative virtual inertia is adopted in the frequency recovery period to accelerate the recovery. At the same time, variable coefficient droop control is adopted throughout the frequency modulation period, which can maintain the state of charge (SOC) within the working range while meeting the frequency modulation requirements. In addition, when the frequency does not exceed the frequency modulation dead zone, SOC self-recovery control is adopted to restore the SOC of the battery energy storage to the set value, enhancing the ability of battery energy storage to participate in long-term frequency modulation. Finally, a frequency modulation model of a certain collection station in Zhejiang Province is built in the digital real-time simulation system RT1000, and the simulation of new energy participating in the primary frequency modulation of the power grid is carried out, verifying the feasibility and effectiveness of the proposed strategy. |
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