A Planning Method of On-Load Capacity Regulating Distribution Transformers in Urban Distribution Network after Electric Energy Substitution
Su Yu1, Wang Qianggang1, Lei Chao2, Zhou Niancheng1, Huang Xing3
1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing 400044 China;; 2. State Grid Sichuan Electric Power Company Tianfu Power Supply Company Chengdu 610000 China; 3. Yunnan Power Grid Electric Power Research Institute Limited Liability Company Kunming 650217 China
Abstract：To reduce operation loss of distribution transformers in urban distribution network after electric energy substitution, this paper proposed a criterion of replacing with on-load capacity regulating distribution transformers, according to the relationship between conventional distribution transformer loss and on-load capacity regulating distribution transformer loss. And the distribution transformer replaceable point set was obtained, realizing preliminary judgment of replacing conventional distribution transformers with on-load capacity regulating distribution transformers. Then, based on cost-benefit analysis, the planning model of on-load capacity regulating distribution transformers in urban distribution network after electric energy substitution was established. The model was solved by branch and bound method within distribution transformer replaceable point set, so as to obtain optimal distribution transformer planning scheme. Finally, the distribution transformer planning of substitution points in an urban distribution network was carried out to verify the feasibility of this method.
苏宇, 王强钢, 雷超, 周念成, 黄星. 电能替代下的城市配电网有载调容配电变压器规划方法[J]. 电工技术学报, 2019, 34(7): 1496-1504.
Su Yu, Wang Qianggang, Lei Chao, Zhou Niancheng, Huang Xing. A Planning Method of On-Load Capacity Regulating Distribution Transformers in Urban Distribution Network after Electric Energy Substitution. Transactions of China Electrotechnical Society, 2019, 34(7): 1496-1504.
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2019, Vol. 34 
