电力系统自动化2026，Vol.50Issue(12)：85-96,12.DOI:10.7500/AEPS20250722006
计及经济-可靠性的主动配电网移相变压器协同规划
Collaborative Planning for Phase-shifting Transformers in Active Distribution Networks Considering Economy and Reliability
摘要
Abstract
With the in-depth construction of the new power system,user demand for supply reliability is continuously increasing.The single-core asymmetric phase-shifting transformer(SAPST)provides a key technology for the uninterrupted power transfer of loads.However,the planning with phase-shifting transformers often ignores the threat posed by the inrush current of the loop-closing operation to system reliability.To address this issue,a collaborative planning method for SAPST in active distribution networks considering economy and reliability is proposed.Firstly,an equivalent model of SAPST is established,and a partitioned fault restoration strategy is introduced to improve power supply continuity.Secondly,loop-closing current constraints are incorporated into the reliability evaluation framework,and improved indices considering loop-closing current penalty are put forward,enabling the evaluation results to better reflect actual operation risks.On this basis,a bi-level optimization model is constructed,in which the upper layer aims to minimize the investment cost and the lower layer targets the minimization of operation cost and reliability cost.The second-order cone programming algorithm is adopted to solve the model.Case analysis based on the modified IEEE 33-bus system shows that the proposed method can significantly suppress loop-closing current and enhance power supply reliability while ensuring economy,which verifies the feasibility and effectiveness of the method in realizing the collaborative optimization of active distribution networks.关键词
主动配电网/移相变压器/可靠性/经济性/故障恢复/合环电流/规划Key words
active distribution network/phase-shifting transformer/reliability/economy/fault restoration/loop-closing current/planning引用本文复制引用
李东东,李成志,赵耀,陈泓伊,许江蛟..计及经济-可靠性的主动配电网移相变压器协同规划[J].电力系统自动化,2026,50(12):85-96,12.基金项目
国家自然科学基金资助项目(52377111) （52377111）
西藏自治区科技项目(XZ202401ZY0037) （XZ202401ZY0037）
教育部"春晖计划"合作科研项目(HZKY20220084). This work is supported by National Natural Science Foundation of China(No.52377111),Xizang Autonomous Region Science and Technology Project(No.XZ202401ZY0037),and Chunhui Program by the Ministry of Education of China(No.HZKY20220084). （HZKY20220084）
