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
王方敏1(), 顼佳宇2(
), 苏宁1(
), 牛焕娜3(
), 袁嘉兴3, 门盼龙3
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:
基金资助:
WANG Fangmin1(), XU Jiayu2(
), SU Ning1(
), NIU Huanna3(
), YUAN Jiaxing3, MEN Panlong3
Received:
2024-07-08
Online:
2025-06-30
Published:
2025-06-28
Supported by:
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。
王方敏, 顼佳宇, 苏宁, 牛焕娜, 袁嘉兴, 门盼龙. 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[J]. 中国电力, 2025, 58(6): 33-44.
WANG Fangmin, XU Jiayu, SU Ning, NIU Huanna, YUAN Jiaxing, MEN Panlong. Probability Evaluation Method of Distributed Photovoltaic Carrying Capacity under Risk Suppression in New Power System[J]. Electric Power, 2025, 58(6): 33-44.
图 2 含多元负荷型可上调调节资源的分布式光伏接入配电网的典型结构
Fig.2 Typical structure diagram of distributed photovoltaic access to distribution network with multi-load type up-regulation resources
图 4 分布式光伏接入配电网承载力分层分级概率评估方法流程
Fig.4 Flow chart of the hierarchical hierarchical probability evaluation method of the carrying capacity of distributed photovoltaic access distribution network
评估对象 | 安全校核评估 | 反向负载率分级概率 | 评估等 级划分 | |||
3绕组220 kV主变1(110 kV母线1) | 通过 | Ⅱ级 | ||||
3绕组220 kV主变1(35 kV母线1) | 通过 | Ⅳ级 | ||||
110 kV线路1 (110 kV母线2) | 通过 | Ⅱ级 | ||||
3绕组110 kV主变1(35 kV母线2) | 通过 | Ⅳ级 | ||||
3绕组110 kV主变1(10 kV母线1) | 通过 | Ⅱ级 |
表 1 评估区域1承载力分级评估等级结果
Table 1 Assessment area 1 bearing capacity grading evaluation grade result table
评估对象 | 安全校核评估 | 反向负载率分级概率 | 评估等 级划分 | |||
3绕组220 kV主变1(110 kV母线1) | 通过 | Ⅱ级 | ||||
3绕组220 kV主变1(35 kV母线1) | 通过 | Ⅳ级 | ||||
110 kV线路1 (110 kV母线2) | 通过 | Ⅱ级 | ||||
3绕组110 kV主变1(35 kV母线2) | 通过 | Ⅳ级 | ||||
3绕组110 kV主变1(10 kV母线1) | 通过 | Ⅱ级 |
评估对象 | 安全校核评估 | 反向负载率分级概率 | 评估等 级划分 | |||
3绕组220 kV主变2(110 kV母线3) | 通过 | Ⅲ级 (蓝色) | ||||
3绕组220 kV主变2(35 kV母线3) | 通过 | Ⅳ级 (绿色) | ||||
35 kV线路2 (35 kV母线4) | 通过 | Ⅱ级 (黄色) | ||||
35 kV变压器2(10 kV母线2) | 通过 | Ⅰ级 (红色) |
表 2 评估区域2承载力分级评估等级结果
Table 2 Assessment area 2 bearing capacity grading evaluation grade result table
评估对象 | 安全校核评估 | 反向负载率分级概率 | 评估等 级划分 | |||
3绕组220 kV主变2(110 kV母线3) | 通过 | Ⅲ级 (蓝色) | ||||
3绕组220 kV主变2(35 kV母线3) | 通过 | Ⅳ级 (绿色) | ||||
35 kV线路2 (35 kV母线4) | 通过 | Ⅱ级 (黄色) | ||||
35 kV变压器2(10 kV母线2) | 通过 | Ⅰ级 (红色) |
评估对象 | 安全校核评估 | 反向负载率分级概率 | 评估等 级划分 | |||
3绕组220 kV主变3(110 kV母线4) | 通过 | Ⅳ级 | ||||
3绕组220 kV主变3(10 kV母线3) | 通过 | Ⅳ级 | ||||
110 kV线路3 (110 kV母线5) | 通过 | Ⅱ级 | ||||
3绕组110 kV主变3(35 kV母线5) | 通过 | Ⅱ级 | ||||
3绕组110 kV主变3(10 kV母线4) | 电压偏差校核 不通过 | — | Ⅰ级 |
表 3 评估区域3承载力分级评估等级结果
Table 3 Assessment area 3 bearing capacity grading evaluation grade result table
评估对象 | 安全校核评估 | 反向负载率分级概率 | 评估等 级划分 | |||
3绕组220 kV主变3(110 kV母线4) | 通过 | Ⅳ级 | ||||
3绕组220 kV主变3(10 kV母线3) | 通过 | Ⅳ级 | ||||
110 kV线路3 (110 kV母线5) | 通过 | Ⅱ级 | ||||
3绕组110 kV主变3(35 kV母线5) | 通过 | Ⅱ级 | ||||
3绕组110 kV主变3(10 kV母线4) | 电压偏差校核 不通过 | — | Ⅰ级 |
评估对象 | 安全校 核评估 | 反向负 载率分 级概率 | 评估等 级划分 | |||
3绕组220 kV主变4(110 kV母线6) | — | — | Ⅰ级 | |||
3绕组220 kV主变4(10 kV母线5) | — | — | Ⅰ级 | |||
10 kV变压器4(0.4 kV母线1) | — | — | Ⅰ级 |
表 4 评估区域4承载力分级评估等级结果表
Table 4 Assessment area 4 bearing capacity grading evaluation grade result table
评估对象 | 安全校 核评估 | 反向负 载率分 级概率 | 评估等 级划分 | |||
3绕组220 kV主变4(110 kV母线6) | — | — | Ⅰ级 | |||
3绕组220 kV主变4(10 kV母线5) | — | — | Ⅰ级 | |||
10 kV变压器4(0.4 kV母线1) | — | — | Ⅰ级 |
图 6 评估区域光伏承载力薄弱环节分级评估结果拓扑
Fig.6 Topology diagram of the grading assessment results of the weak links in the evaluation of regional photovoltaic carrying capacity
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