EN计及分布式光伏出力不确定性的低压配电网仿射潮流计算方法
Affine Power Flow Calculation Method for Low-voltage Distribution Systems Considering the Uncertainty of Distributed Photovoltaic Output
- 中国电力 2025年58卷第10期 页码：188-194
- 作者机构：
国网浙江省电力有限公司嘉兴供电公司,浙江,嘉兴,314500
- 作者简介：
- 基金信息：国网浙江省电力有限公司科技项目（B311JX220001）。
DOI：10.11930/j.issn.1004-9649.202412047
中图分类号：-
网络出版：2025-10-23，
纸质出版：2025
- 稿件说明：
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汪泽州, 毛琳明, 潘克勤, 储建新, 陈刚. 计及分布式光伏出力不确定性的低压配电网仿射潮流计算方法[J]. 中国电力, 2025, 58(10): 188-194.
WANG Zezhou, MAO Linming, PAN Keqin, et al. Affine Power Flow Calculation Method for Low-voltage Distribution Systems Considering the Uncertainty of Distributed Photovoltaic Output[J]. 2025, 58(10): 188-194.
汪泽州, 毛琳明, 潘克勤, 储建新, 陈刚. 计及分布式光伏出力不确定性的低压配电网仿射潮流计算方法[J]. 中国电力, 2025, 58(10): 188-194. DOI： 10.11930/j.issn.1004-9649.202412047.
WANG Zezhou, MAO Linming, PAN Keqin, et al. Affine Power Flow Calculation Method for Low-voltage Distribution Systems Considering the Uncertainty of Distributed Photovoltaic Output[J]. 2025, 58(10): 188-194. DOI： 10.11930/j.issn.1004-9649.202412047.
摘要
源、荷不确定性增加了配电网实时态势感知的难度。为此，提出一种计及分布式光伏出力不确定性的低压配电网仿射潮流计算方法。考虑光伏出力及负荷的不确定性，建立低压配电网潮流模型。考虑中性点电压对潮流计算结果的影响，建立配电网状态变量的仿射表达式，从而减少区间运算的扩张效应，获得更紧凑的状态变量区间。基于标准配电网测试系统对所提方法进行验证。仿真结果表明，所提方法不仅能够提升计算精度，而且可以在电能质量分析中能给出更具参考价值的评估结果。
Abstract
The uncertainty of the source and load increases the difficulty of real-time situation awareness of the distribution network. To this end
an affine power flow calculation for the low-voltage distribution network considering the uncertainty of distributed photovoltaic output is proposed. The power flow model of the low-voltage distribution network is established considering uncertainty of photovoltaic output and load. The influence of the neutral point voltage on the power flow calculation results is considered
and the affine expression of the distribution network state is established
thereby reducing the expansion effect of the interval operation and obtaining a more compact interval of the state variables. Based on the standard distribution network test system
the proposed method is. The simulation results show that the proposed method can not only improve the calculation accuracy but also give more valuable evaluation results in the analysis of power quality.
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Keywords
references
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