Control strategy for secondary frequency regulation of power system considering SOC consensus of large-scale battery energy storage

LYU Lixing; CHEN Shaohua; ZHANG Xiaobai; PANG Tao; HUANG Chongxin

doi:10.19666/j.rlfd.202012296

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Control strategy for secondary frequency regulation of power system considering SOC consensus of large-scale battery energy storage

更新时间：2025-09-28

- Control strategy for secondary frequency regulation of power system considering SOC consensus of large-scale battery energy storage
- Thermal Power Generation Vol. 50, Issue 7, Pages: 108-117(2021)
- 作者机构：
  
  1. 浙江浙能电力股份有限公司萧山发电厂
  2. 南瑞集团有限公司(国网电力科学研究院有限公司)
  3. 南京邮电大学自动化学院人工智能学院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202012296
  CLC： TM91
- Published Online：31 December 2021，
  
  Published：2021
- 稿件说明：
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LYU Lixing, CHEN Shaohua, ZHANG Xiaobai, et al. Control strategy for secondary frequency regulation of power system considering SOC consensus of large-scale battery energy storage[J]. Thermal power generation, 2021, 50(7): 108-117.
DOI：

LYU Lixing, CHEN Shaohua, ZHANG Xiaobai, et al. Control strategy for secondary frequency regulation of power system considering SOC consensus of large-scale battery energy storage[J]. Thermal power generation, 2021, 50(7): 108-117. DOI： 10.19666/j.rlfd.202012296.

摘要

针对规模化电池储能参与电力系统二次调频问题

提出了考虑储能荷电状态(state of charge

SOC)的分层协调控制策略。在区域控制中心层

给出了考虑二次调频需求和储能SOC水平的二次调频功率分配策略

使储能SOC尽可能地维持在正常工作区间

以确保储能持续参与二次调频的能力;在储能站层

采用分布式协同控制算法实现了二次调频功率指令跟踪

并保证各组储能单元SOC趋于一致以提升储能系统的综合运行性能。最后

通过两区域互联电力系统仿真

验证了所提出的规模化储能参与二次调频控制策略的有效性。

Abstract

For the problem of large-scale battery energy storage(BES) system participating in the secondary frequency regulation

a hierarchical coordinated control strategy considering the state of charge(SOC) of the BES is proposed. At the area control center level

a power allocation strategy for the secondary frequency regulation considering the area regulation requirement(ARR) and the SOC of the BES is presented. The power allocation strategy makes the SOC of the BES maintain in the normal interval as much as possible to enable the BES to participate in the secondary frequency regulation continuously. At the BES station level

a distributed cooperative control algorithm is adopted to realize the power command tracking of the secondary frequency regulation

and ensure that the SOC of all the energy storage units reach a consensus to improve the comprehensive operation performances of the BES. Finally

the effectiveness of the proposed control strategy for the large-scale BES participating in the secondary frequency regulation is verified through the simulation on a two-area interconnected power system.

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