中国电力2025，Vol.58Issue(8)：41-49,9.DOI:10.11930/j.issn.1004-9649.202501016
考虑源荷调控的配变重过载及三相不平衡的差异化治理策略
Differentiated Governance Strategies for Distribution Transformer Overload and Three-Phase Imbalance Considering Source-Load Regulation
摘要
Abstract
Aiming at the mixed problems of three-phase imbalance and heavy overload of distribution transformers caused by large-scale access of single-phase distributed photovoltaic and single-phase charging piles,a differentiated governance strategy for heavy overload and three-phase imbalance of distribution transformers considering source-load regulation is proposed.Firstly,a substation imbalance and heavy overload model considering the randomness of photovoltaic charging is established,and the influence of the uncertainty of photovoltaic output and charging behavior on the three-phase imbalance and heavy overload of the substation is analyzed.Secondly,a substation evaluation and clustering model considering the potential of source-load regulation is established,and the substations with the potential of source-load regulation are mined as control clusters;finally,a substation regulation model considering three-phase imbalance and heavy overload is established,with three-phase imbalance,load rate and network loss as the objective function,considering the coordinated control of aggregated photovoltaic control,aggregated charging power control,energy storage and reactive power compensation,and solving it by NSGA-Ⅱalgorithm and maximum fuzzy satisfaction method.The IEEE33 node example model is used for simulation verification,and the results show that this method can effectively manage the mixed problems of three-phase imbalance and heavy overload in the substation.关键词
配电变压器/重过载/三相不平衡Key words
distribution transformer/overload/three-phase Imbalance引用本文复制引用
杨强,罗颖婷,石墨,江俊飞,阮迪航,刘升阳,颜勤,马瑞..考虑源荷调控的配变重过载及三相不平衡的差异化治理策略[J].中国电力,2025,58(8):41-49,9.基金项目
国家自然科学基金资助项目(52307080) （52307080）
中国南方电网有限责任公司科技项目(GDKJXM20222663). This work is supported by National Natural Science Foundation of China(No.52307080),Science and Technology Project of China Southern Power Grid Co.,Ltd.(No.GDKJXM20222663). （GDKJXM20222663）
