中国电力 ›› 2025, Vol. 58 ›› Issue (6): 33-44.DOI: 10.11930/j.issn.1004-9649.202407042

• 基于人工智能驱动的低碳高品质新型配电系统 • 上一篇    下一篇

新型电力系统风险抑制下分布式光伏承载力概率评估方法

王方敏1(), 顼佳宇2(), 苏宁1(), 牛焕娜3(), 袁嘉兴3, 门盼龙3   

  1. 1. 北京电力经济技术研究院有限公司,北京 100055
    2. 国网北京市电力公司,北京 100031
    3. 中国农业大学信息与电气工程学院,北京 100083
  • 收稿日期:2024-07-08 发布日期:2025-06-30 出版日期:2025-06-28
  • 作者简介:
    王方敏(1978),女,高级工程师,从事电网规划设计、新能源并网接入研究,E-mail:wangfm2024@163.com
    顼佳宇(1992),女,博士,工程师,从事分布式光储规划配置与协同控制研究,E-mail:xujy321@163.com
    苏宁(1983),男,硕士,高级工程师,从事电力系统规划设计及新能源并网研究,E-mail:jyysuning@163.com
    牛焕娜(1976),女,博士,副教授,从事主动配电网/微电网能量管理、综合能源系统规划与运行、用户侧能效管理研究,E-mail:nhn@cau.edu.cn(第二十七届中国科协年会学术论文“配微储协同的低碳高品质新型配电系统”专题)
  • 基金资助:
    北京电力经济技术研究院有限公司资助项目(SGBJJY00SJJS2400033);国家重点研发计划资助项目(2022YFE0129400)。

Probability Evaluation Method of Distributed Photovoltaic Carrying Capacity under Risk Suppression in New Power System

WANG Fangmin1(), XU Jiayu2(), SU Ning1(), NIU Huanna3(), YUAN Jiaxing3, MEN Panlong3   

  1. 1. Beijing Electric Power Economic Research Institute Co., Ltd., Beijing 100055, China
    2. State Grid Beijing Electric Power Company, Beijing 100031, China
    3. College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China
  • Received:2024-07-08 Online:2025-06-30 Published:2025-06-28
  • Supported by:
    This work is supported by Beijing Electric Power Economic Research Institute Co., Ltd. Technology Project (No.SGBJJY00SJJS2400033), National Key Research and Development Program of China (No.2022YFE0129400).

摘要:

为了抑制新型电力系统背景下分布式光伏无序接入带来的安全稳定运行风险,提出了基于历史场景统计的光伏承载力分层分级概率评估方法。该方法建立了基于反向负载率的光伏承载力分级概率评估模型以及安全校核概率评估模型,给出了基于历史场景统计的光伏承载力薄弱环节分级概率评估流程,并通过构建基于百分位数统计的光伏承载力评估模型,最终形成了分布式光伏接入配电网承载力分层分级概率评估方法。通过改进导则算例和实际配电网案例验证了所提方法的有效性和普适性,实验表明该方法能够科学展示不同百分位数下各供电区域的光伏可新增容量,识别的光伏承载力薄弱程度更符合统计学意义。

关键词: 配电网, 光伏承载力, 历史场景统计, 分层分级

Abstract:

In order to suppress the safety and stable operation risks brought by the disorderly integration of distributed photovoltaics in the context of the new power system, a hierarchical probability evaluation method based on historical scene statistics is proposed. This method establishes a grading probability evaluation model of PV bearing capacity based on reverse load ratio and a safety check probability evaluation model. The grading probability evaluation process of PV bearing capacity weaknesses based on historical scene statistics is given. By constructing a PV bearing capacity evaluation model based on percentile statistics, a hierarchical probability evaluation method for the capacity of distributed PV access distribution network is finally formed. The effectiveness and universality of the proposed method are verified by the improved guideline example and the actual distribution network case. Experiments show that the method can scientifically show the new PV capacity of each power supply area under different percentiles, and the identified PV capacity weakness is more in line with statistical significance.

Key words: distribution grid, photovoltaic carrying capacity, historical scene statistics, hierarchical grading


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