计及调频备用的储能平抑风电功率波动控制策略

doi:10.19799/j.cnki.2095-4239.2022.0700

储能科学与技术 ›› 2023, Vol. 12 ›› Issue (4): 1194-1203.doi: 10.19799/j.cnki.2095-4239.2022.0700

计及调频备用的储能平抑风电功率波动控制策略

武鸿鑫¹(), 李爱魁¹(), 董存², 孙树敏³, 李广磊³, 王士柏³

^1.大连理工大学电气工程学院，辽宁大连 116024
^2.国家电力调度控制中心，北京 100031
^3.国网山东省电力公司电力科学研究院，山东济南 250003

收稿日期:2022-11-28 修回日期:2023-01-09 出版日期:2023-04-05 发布日期:2023-05-08
通讯作者: 李爱魁 E-mail:838003189@mail.dlut.edu.cn;liaikui@dlut.edu.cn
作者简介:武鸿鑫（1999—），男，硕士研究生，主要研究方向为电力储能技术，E-mail：838003189@mail.dlut.edu.cn；
基金资助:
国家电网有限公司科技项目“配置储能的新能源场站并网调控关键技术研究及应用”(4000-202116062A-0-0-00)

Control strategy for wind power fluctuation stabilization with energy storage and frequency modulation reserve

Hongxin WU¹(), Aikui LI¹(), Cun DONG², Shumin SUN³, Guanglei LI³, Shibo WANG³

^1.College of Electrical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
^2.National Electric Power Dispatching and Control Center, Beijing 100031, China
^3.State Grid Shandong Electric Power Research Institute, Jinan 250003, Shandong, China

Received:2022-11-28 Revised:2023-01-09 Online:2023-04-05 Published:2023-05-08
Contact: Aikui LI E-mail:838003189@mail.dlut.edu.cn;liaikui@dlut.edu.cn

摘要/Abstract

摘要：

新能源场站配置储能系统可以平抑输出功率的波动、承担新能源机组调频义务。若储能仅考虑单一平抑波动工况时可能会造成风储联合系统调频有功备用不足。因此本文提出一种考虑调频有功备用与荷电状态恢复的平抑风电功率波动策略，首先利用聚类算法提取储能平抑波动典型工况，计算储能平抑波动功率需求和剩余有功功率；其次，结合国标对风电场有功备用相关标准，利用储能调频备用与风电减载联合提供有功备用，并对储能平抑波动功率设置限幅；最后，利用模糊控制理论设计储能系统边缘区荷电状态恢复策略。基于实际风电场运行数据进行仿真分析，结果表明所提出的方法可在储能系统平抑风电波动时提供有功备用以及边缘区荷电状态恢复。

关键词: 储能电站, 平抑风电波动, 调频备用, 荷电状态恢复, 模糊控制

Abstract:

An energy storage system equipped with a new energy station can smooth the fluctuation of output power and undertake the frequency regulation obligation of the new energy unit. Nevertheless, the energy storage may cause an insufficient active power reserve of the frequency modulation system if it considers only the single stabilizing fluctuation condition. Therefore, this paper proposes a strategy for wind power fluctuation stabilization considering frequent-modulated active power backup and state of charge restoration. First, a clustering algorithm was used to extract typical working conditions of energy storage fluctuation stabilization power. The energy storage required to smooth the fluctuation power demand and residual active power was calculated. Second, the energy storage frequency modulation reserve and wind power load reduction are used to provide active power reserve according to the national standard for active power reserve of wind farms, and the energy storage to stabilize the fluctuation power limit is set. Finally, the fuzzy control theory is used to design the strategy for restoring the state of charge at the edge of the energy storage system. Based on the actual wind farm operation data, the simulation results show that the proposed method can provide active power backup and restore the state of charge in the edge zone when the energy storage system suppresses wind power fluctuation.

Key words: energy storage power station, smooth wind power fluctuations, frequency modulation standby, recover state of charge, fuzzy control

中图分类号:

TM 73

武鸿鑫, 李爱魁, 董存, 孙树敏, 李广磊, 王士柏. 计及调频备用的储能平抑风电功率波动控制策略[J]. 储能科学与技术, 2023, 12(4): 1194-1203.

Hongxin WU, Aikui LI, Cun DONG, Shumin SUN, Guanglei LI, Shibo WANG. Control strategy for wind power fluctuation stabilization with energy storage and frequency modulation reserve[J]. Energy Storage Science and Technology, 2023, 12(4): 1194-1203.

图/表 10

图1

图2

表1

模糊规则表"

$f$	SOC
$f$	LS	MS	SM	SB	MB	LB
SG	VS	S	M	M	S	VS
MG	S	M	L	L	M	S
LG	M	L	VL	VS	L	M

表1

图3

图4

图5

表2

图6

图7

图8

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项目	场景1	场景2	场景3	场景4	场景5	场景6	场景7	场景8
最大充电功率/MW	3.16	0.33	5.94	0.12	5.25	0.94	2.95	7.80
最大放电功率/MW	-4.64	-0.35	-2.76	-5.60	-4.37	-2.77	-1.63	-7.09
场景出现概率	14.29%	34.92%	9.52%	6.35%	15.87%	15.87%	14.29%	7.94%

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计及调频备用的储能平抑风电功率波动控制策略

Control strategy for wind power fluctuation stabilization with energy storage and frequency modulation reserve

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