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山东大学学报 (工学版) ›› 2018, Vol. 48 ›› Issue (6): 109-115.doi: 10.6040/j.issn.1672-3961.0.2018.260

• 电气工程 • 上一篇    下一篇

基于梯次利用电池储能系统的分布式光伏接入受限对策

王飞1(),王春义1,王传勇2,赵光锋1,李沐3,施啸寒4,*()   

  1. 1. 国网山东省电力公司, 山东 济南 250001
    2. 国网山东省电力公司枣庄供电公司, 山东 枣庄 277100
    3. 国网山东省电力公司经济技术研究院, 山东 济南 250000
    4. 电网智能化调度与控制教育部重点实验室(山东大学), 山东 济南 250061
  • 收稿日期:2018-06-26 出版日期:2018-12-20 发布日期:2018-12-26
  • 通讯作者: 施啸寒 E-mail:wf6102@163.com;shixh@sdu.edu.cn
  • 作者简介:王飞(1982—)，男，山东济南人，高级工程师，主要研究方向为电网规划和新能源发电技术. E-mail:wf6102@163.com
  • 基金资助:
    国网山东省电力公司科技资助项目(2017A18)

Restrictions and countermeasures of distributed PV integration based on secondary battery energy storage system

Fei WANG1(),Chunyi WANG1,Chuanyong WANG2,Guangfeng ZHAO1,Mu LI3,Xiaohan SHI4,*()   

  1. 1. State Grid Shandong Electric Power Company, Jinan 250001, Shandong, China
    2. Zaozhuang Power Supply Company, State Grid Shandong Electric Power Company, Zaozhuang 277100, Shandong, China
    3. Economic & Technology Research Institute, State Grid Shandong Electric Power Company, Jinan 250000, Shandong, China
    4. Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education (Shandong University), Jinan 250061, Shandong, China
  • Received:2018-06-26 Online:2018-12-20 Published:2018-12-26
  • Contact: Xiaohan SHI E-mail:wf6102@163.com;shixh@sdu.edu.cn
  • Supported by:
    国网山东省电力公司科技资助项目(2017A18)

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摘要：

以农村户用分布式光伏接入为场景,分析光伏接入受限原因并提出基于梯次利用电池储能系统的应对方案。从一次设备容量、配网电压控制、光伏出力波动三个方面分析制约分布式光伏接入的薄弱环节。构建电网改造和配置储能应对措施的投资模型,并基于经济技术比较提出基于梯次利用动力电池构建储能系统支撑分布式光伏消纳的方法。开发采用动态成组理论的梯次利用电池储能系统样机并开展现场试验。试验结果表明:储能样机可将光伏出力中心偏差值降低35%,并将最大峰峰差值降低60%;同时将变压器负载峰谷差降低20%,负载率降低12%,有效支撑电网对分布式光伏的消纳。

关键词: 梯次利用电池储能, 分布式光伏, 光伏接入受限和对策, 削峰填谷, 波动平抑

Abstract:

The distributed PV in rural areas was taken as object, the main factors limiting the integration of the PV generation was analyzed and the feasible solution was proposed based on secondary battery energy storage system. The weakness of distributed PV integration was analyzed from the points of view of primary equipment capacity, voltage control and fluctuation of PV output power. The investment model of grid upgrading and energy storage installation was built, based on which the economic comparison was carried out and the countermeasure based on secondary battery energy storage system was proposed. A prototype of secondary battery energy storage system adopting dynamic group theory was developed and the field test was carried out. The results demonstrated that the prototype could reduce the variance of the photovoltaic power by 35% as well as reduced the maximum peak and peak difference by 60%. The prototype could also reduce the peak and valley difference of the transformer by 20% and the load rate by 12%, which could effectively support the distribution of distributed PV.

Key words: secondary battery energy storage, distributed photovoltaic, PV griding restriction and countermeasure, peak shaving, power fluctuation leveling

中图分类号: 

  • TM734

图1

农村配电网及分布式光伏接入典型接线图"

图2

不同负荷水平与光伏安装户数,变压器负载曲线"

图3

含光伏配电网各点电压日变化曲线"

图4

典型光伏日出力曲线"

图5

典型光伏日出力曲线拟合结果"

图6

不同应对方案投资与光伏装机容量关系"

图7

梯次利用电池储能系统原理结构图"

图8

梯次利用电池储能样机"

图9

现场试验接线图"

图10

现场试验照片"

图11

波动平抑试验结果"

图12

削峰填谷试验结果"

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