Research and application of economic improvement strategy for hybrid energy storage frequency modulation project

YIN Yue; SUN Ganghu; WU Pengyue; WANG Fei; YANG Peihao; GUO Hao; LI Jinghua

doi:10.19666/j.rlfd.202403062

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Research and application of economic improvement strategy for hybrid energy storage frequency modulation project

Thermal Power Generation Vol. 53, Issue 10, Pages: 81-89(2024)

更新时间：2025-09-28

- Research and application of economic improvement strategy for hybrid energy storage frequency modulation project
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 华能国际电力股份有限公司日照电厂
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202403062
  CLC： TM912;TM621
- Published：2024
- 稿件说明：
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YIN Yue, SUN Ganghu, WU Pengyue, et al. Research and application of economic improvement strategy for hybrid energy storage frequency modulation project[J]. Thermal Power Generation, 2024, 53(10): 81-89.
DOI：

YIN Yue, SUN Ganghu, WU Pengyue, et al. Research and application of economic improvement strategy for hybrid energy storage frequency modulation project[J]. Thermal Power Generation, 2024, 53(10): 81-89. DOI： 10.19666/j.rlfd.202403062.

摘要

储能系统辅助火电机组调频受到储能器件容量限制，其输出功率无法长时间跟踪指令功率，同时锂电池储能也存在安全隐患、循环寿命限制与提升机组调频收益增益有限等问题。为此，利用超级电容高循环寿命、高安全性的特性，在Matlab/Simulink中构建混合储能系统辅助燃煤火电机组调频的仿真模型。结合火电机组和储能系统运行状态，进而设计了一套基于指标计算与模糊控制协同的控制策略，实现了动态工况下混合储能系统出力的自适应调整。仿真验证表明该控制策略能够有效延长锂电池的使用年限并且高效利用混合储能的剩余电量。相比于传统的混合储能系统策略，该控制策略降低了锂电池60%的日均使用次数，调频性能综合指标提高34%，日均收益提高2万元，具有较高的工程应用价值。

Abstract

Energy storage system assisted thermal power unit frequency regulation is limited by the capacity of storage device

and its output power can not track the command power for a long time. At the same time

lithium battery energy storage technology also exists problems in safety hazards

cycle life limitations

limited enhancement of unit frequency gain gain and other issues. For this reason

the characteristics of high cycle life and high safety of supercapacitor are used to construct the simulation model of hybrid energy storage system assisted coal-fired thermal power unit frequency regulation in Matlab/Simulink platform. Combining with the operating state of thermal power unit and energy storage system

a set of control strategy based on index calculation and fuzzy control synergy is designed to achieve the adaptive adjustment of hybrid energy storage system output under dynamic operating conditions. Simulations show that

the control strategy can effectively extend the service life of lithium batteries and efficiently utilize the residual power of the hybrid energy storage system. Compared with the conventional control strategy of hybrid energy storage system

the proposed control strategy reduces the average daily use time of lithium battery by 60%

improves the comprehensive index of frequency regulation performance by 34%

and increases the average daily revenue by 20 000 yuan

which has high engineering application value.

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