Flywheel/Lithium Hybrid Energy Storage-assisted Thermal Power AGC Control Strategy and Application Based on Mode Matching

HONG Feng; DU Hao; LIANG Lu; ZHANG Yi; FANG Fang; LIU Jizhen; {{custom_author.name_en}}

doi:10.13334/j.0258-8013.pcsee.242660

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Flywheel/Lithium Hybrid Energy Storage-assisted Thermal Power AGC Control Strategy and Application Based on Mode Matching

更新时间：2026-10-12

- Flywheel/Lithium Hybrid Energy Storage-assisted Thermal Power AGC Control Strategy and Application Based on Mode Matching
- Vol. 46, Issue 6, Pages: 2229-2240(2026)
- 作者机构：
  
  新能源电力系统国家重点实验室(华北电力大学)，北京市昌平区,102206
- 作者简介：
- 基金信息：
- DOI：10.13334/j.0258-8013.pcsee.242660
  CLC：
- Received：20 March 2026，
  
  Published：2026
- 稿件说明：
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HONG Feng, DU Hao, LIANG Lu, et al. Flywheel/Lithium Hybrid Energy Storage-assisted Thermal Power AGC Control Strategy and Application Based on Mode Matching[J]. 2026, 46(6): 2229-2240.
DOI：

HONG Feng, DU Hao, LIANG Lu, et al. Flywheel/Lithium Hybrid Energy Storage-assisted Thermal Power AGC Control Strategy and Application Based on Mode Matching[J]. 2026, 46(6): 2229-2240. DOI： 10.13334/j.0258-8013.pcsee.242660.

摘要

新能源的大规模并网导致电网频率波动显著，而燃煤机组的灵活性相对较低，储能能够提升其调节能力，对主动支撑电网频率稳定具有重要意义。电网采取自动发电控制(automatic generation control，AGC)有偿调频模式，该模式呈现高频次、连续折返特点。该文通过聚类电网AGC指令，兼顾飞轮/锂电混合储能技术优势，提出一种基于模态匹配的混合储能辅助火电AGC控制策略，动态调节储能荷电状态，量化飞轮/锂电池混合储能提升机组单一调频性能指标关系，自适应协调三者出力功率和时间节点。结果表明，该策略相较于常规控制策略，日均调频性能指标kp值提升19.98%，日调节深度提升166MW；并应用在国内某机组，kp提升至4.70，锂电日均循环次数减少34.27%，实现了储能系统总功率配比小于机组容量3%以下尽限调控。

Abstract

The large-scale integration of renewable energy sources leads to significant fluctuations in the grid frequency. Coal-fired power plants have relatively low flexibility. Energy storage can enhance their regulation capabilities

which is of great significance for actively supporting the stability of the grid frequency. The power grid adopts the paid frequency regulation mode of automatic generation control (AGC)

which features high frequency and continuous reversal. This paper clusters the AGC instructions of the power grid

takes into account the advantages of flywheel/lithium battery hybrid energy storage technology

and proposes a hybrid energy storage-assisted AGC control strategy for thermal power plants based on mode matching. It dynamically adjusts the state of charge of the energy storage

quantifies the relationship between the hybrid energy storage of flywheel/lithium battery and the improvement of the single frequency regulation performance index of the unit

and adaptively coordinates the output power and time nodes of the three. The results show that compared with the conventional control strategy

the average kp value of the proposed strategy is increased by 19.98% per day

and the daily regulation depth is increased by 166 MW. It has also been applied to a unit in China

with the kp value increased to 4.70

and the average daily cycling times of lithium batteries decreased by 34.27%

achieving limit regulation of the total power ratio of the energy storage system below 3% of the unit capacity.

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