Primary frequency regulation of flywheel energy storage combined thermal power unit based on adaptive coordinated droop control

HONG Feng; LIANG Lu; PANG Yalei; JI Weiming; JIA Xinyi; FANG Fang

doi:10.19666/j.rlfd.202206100

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Primary frequency regulation of flywheel energy storage combined thermal power unit based on adaptive coordinated droop control

更新时间：2025-09-28

- Primary frequency regulation of flywheel energy storage combined thermal power unit based on adaptive coordinated droop control
- Thermal Power Generation Vol. 52, Issue 1, Pages: 36-44(2023)
- 作者机构：
  
  华北电力大学控制与计算机工程学院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202206100
  CLC： TM621;TP273
- Published：2023
- 稿件说明：
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HONG Feng, LIANG Lu, PANG Yalei, et al. Primary frequency regulation of flywheel energy storage combined thermal power unit based on adaptive coordinated droop control[J]. Thermal power generation, 2023, 52(1): 36-44.
DOI：

HONG Feng, LIANG Lu, PANG Yalei, et al. Primary frequency regulation of flywheel energy storage combined thermal power unit based on adaptive coordinated droop control[J]. Thermal power generation, 2023, 52(1): 36-44. DOI： 10.19666/j.rlfd.202206100.

摘要

随着“双碳”目标的提出，新能源装机总量不断提高，对电网频率安全提出了更大的挑战。飞轮储能凭借其响应速度快、充放电次数多等优点，在联合火电机组参与调频、提升电网频率安全方面受到广泛关注。为更加充分利用飞轮储能辅助电网调频的快速性优势，设计了一种基于自适应协同下垂的飞轮储能联合火电机组一次调频控制策略，实现了火-储联合系统的功率协同自适应调整。仿真验证表明，所提出的控制策略可以有效改善火-储联合系统的调频性能，相比传统下垂控制，系统最大动态频差和稳态频差分别减少了29.00%和25.50%，缓解了火电机组调频压力，有利于火电机组安全稳定运行。

Abstract

With the proposal of “carbon peaking and carbon neutral”

the total installed capacity of renewable energy power units continues to increase. This may greatly challenge the safety and stability of power grid. The characteristics of flywheel energy storage system(FESS) are fast response

unlimited times of charge and discharge and deep depth of discharge. FESS has been widely used in frequency modulation and frequency safety improvement of power grid. In order to make full use of the advantage of flywheel energy storage in auxiliary frequency modulation of the power grid

an adaptive coordinated droop control strategy of primary frequency regulation coordinated with thermal power units was designed

which realized the power cooperative adaptive adjustment of the combined coal-fired thermal power units and storage systems. Simulation results show that

the proposed control strategy can effectively improve the frequency modulation performance of the combined firestorage system. Compared with the conventional droop control

the maximum dynamic frequency difference and steady frequency difference of the system reduces by 29.00% and 25.50% respectively

which eases the frequency modulation pressure of thermal power unit

and is benefit to safety and stability of the thermal power unit.

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