风电场多功能储能电站功率分配策略

doi:10.11930/j.issn.1004-9649.202308036

中国电力 ›› 2024, Vol. 57 ›› Issue (9): 247-256.DOI: 10.11930/j.issn.1004-9649.202308036

• 新能源 • 上一篇

风电场多功能储能电站功率分配策略

田刚领¹^,³(), 武鸿鑫², 李娟³, 张柳丽³, 谢佳¹, 李爱魁²()

1. 华中科技大学电气与电子工程学院，湖北武汉　430070
2. 大连理工大学电气工程学院，辽宁大连　116024
3. 平高集团储能科技有限公司，天津　300300

收稿日期:2023-08-09 出版日期:2024-09-28 发布日期:2024-09-23
作者简介:田刚领（1977—），男，博士，高级工程师（教授级），从事电力系统、储能技术及应用、高压电器研发设计等研究，E-mail：gangling_tian@126.com
李爱魁（1977—），男，通信作者，研究员，从事新能源及储能技术研究，E-mail：liaikui@dlut.edu.cn
基金资助:
中国电气装备集团有限公司科技项目（储能系统多级安全防控关键技术研究及系统开发，CEE-2022-B-01-03-004-PG）。

Power Distribution Strategy of Multi-functional Energy Storage Power Station in Wind Farm

Gangling TIAN¹^,³(), Hongxin WU², Juan LI³, Liuli ZHANG³, Jia XIE¹, Aikui LI²()

1. School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430070, China
2. School of Electrical Engineering, Dalian University of Technology, Dalian 116024, China
3. Pinggao Group Energy Storage Technology Co., Ltd., Tianjin 300300, China

Received:2023-08-09 Online:2024-09-28 Published:2024-09-23
Supported by:
This work is supported by Science and Technology Project of China Electrical Equipment Group Co., Ltd. (Research and Development of Key Technologies for Multi-level Safety Prevention and Control of Energy Storage System, No.CEE-2022-B-01-03-004-PG).

摘要/Abstract

摘要：

随着新能源装机比例的增加，新能源场站调频调压等调节能力日益受到重视。针对配置储能的新能源场站一次调频、功率平滑以及调压协调控制问题，利用聚类算法得到储能平抑波动功率需求，设定风储各自调频备用功率以及储能电站调压备用功率；其次，利用储能剩余有功功率与荷电状态（SOC）修正储能一次调频有功出力；之后，基于储能无功裕度以及电压偏差紧急程度对储能无功-电压下垂系数进行修正；最后，以优先保证调频效果为目标，提出储能平抑波动、一次调频和调压的储能多功能协调运行策略。基于Matlab/Simulink进行仿真验证，对储能平抑波动与一次调频、储能平抑波动与调压以及3种功能协调运行分别进行了仿真工况分析，结果表明，所提多功能协调运行策略可在储能平抑风电波动工况下促进电网频率、电压以及SOC恢复。

关键词: 储能电站, 一次调频, 平抑波动, 调压, Logistic

Abstract:

With the increase in the proportion of new energy installed capacity, the modulation capacity of new energy stations such as frequency modulation and voltage modulation has been paid more and more attention. In view of the problems of primary frequency modulation, power smoothing, and coordinated control of voltage modulation for new energy stations equipped with energy storage, this paper used a clustering algorithm to obtain the energy storage to suppress fluctuating power requirements and set the standby power of frequency modulation for wind storage and voltage modulation for energy storage stations. Secondly, the residual active power for energy storage and the state of charge (SOC) were used to correct the active power of primary frequency modulation for energy storage. Then, based on the reactive power margin for energy storage and the emergency degree of voltage deviation, the reactive power-voltage sag coefficient was modified. Finally, to ensure the frequency modulation effect, the multi-function coordinated operation strategy of energy storage was proposed, involving fluctuation suppression by energy storage, primary frequency modulation, and voltage modulation. Based on Matlab/Simulink, simulation verification was carried out, and the simulation conditions of fluctuation suppression by energy storage and primary frequency modulation, fluctuation suppression by energy storage and voltage modulation, as well as the coordinated operation of the three functions were analyzed, respectively. The results show that the multi-function coordinated operation strategy proposed in this paper can promote the grid frequency, voltage, and SOC recovery under the condition of fluctuation suppression of wind power by energy storage.

Key words: energy storage power station, primary frequency modulation, fluctuation suppression, voltage modulation, Logistic

田刚领, 武鸿鑫, 李娟, 张柳丽, 谢佳, 李爱魁. 风电场多功能储能电站功率分配策略[J]. 中国电力, 2024, 57(9): 247-256.

Gangling TIAN, Hongxin WU, Juan LI, Liuli ZHANG, Jia XIE, Aikui LI. Power Distribution Strategy of Multi-functional Energy Storage Power Station in Wind Farm[J]. Electric Power, 2024, 57(9): 247-256.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202308036

https://www.electricpower.com.cn/CN/Y2024/V57/I9/247

图/表 9

图 1 考虑调频调压备用的储能平抑波动运行方式

Fig.1 Operation mode of fluctuation suppression by energy storage considering frequency modulation and voltage modulation

图 2 基于模糊控制的储能无功-电压下垂系数优化

Fig.2 Optimization of reactive power-voltage sag coefficient of energy storage based on fuzzy control

表 1 模糊规则表

Table 1 Fuzzy rule

	LS	MS	SM
SG	MS	L	VL
MG	VS	S	ML
LG	MS	L	VL

图 3 多功能协调运行总体控制流程

Fig.3 Overall control flow chart of multi-function coordinated operation

图 4 风储系统并网仿真拓扑

Fig.4 Grid-connected simulation topology of wind storage system

图 5 阶跃扰动下电网频率、SOC和一次调频功率对比

Fig.5 Comparison of grid frequency, SOC, and primary frequency modulation power under step disturbance

图 6 阶跃扰动下PCC点电压与无功功率对比

Fig.6 Comparison of PCC point voltage and reactive power under step disturbance

图 7 随机扰动下电网频率、SOC与电压对比

Fig.7 Comparison of grid frequency, SOC, and voltage under random disturbance

表 2 调频/调压效果评价指标

Table 2 Evaluation indexes for frequency modulation/voltage modulation effect

方法	$ {f_{{\text{rmc}}}} $	$ S_{ {\text{OCrms}}} $	$ {U_{{\text{rms}}}} $
风储不调频/调压	0.0681		0.0411
定K法一次调频与传统无功下垂控制	0.0492	0.1590	0.0321
多功能协调控制	0.0466	0.1587	0.0264

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风电场多功能储能电站功率分配策略

Power Distribution Strategy of Multi-functional Energy Storage Power Station in Wind Farm

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风电场多功能储能电站功率分配策略

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