电力系统自动化2026，Vol.50Issue(7)：153-165,13.DOI:10.7500/AEPS20250512002
基于多维柔性互联设备的双极直流配电网综合电压调控策略
Comprehensive Voltage Regulation Strategy for Bipolar DC Distribution Networks Based on Multi-dimensional Flexibly Interconnected Devices
摘要
Abstract
In bipolar DC distribution networks,the asymmetric integration and stochastic characteristics of DC sources and loads can lead to various voltage issues,such as inter-pole voltage unbalance and voltage violation resulting from uneven power distribution.To address these challenges,a multi-dimensional flexibly interconnected device with multi-dimensional power regulation capabilities is developed,based on which a comprehensive voltage regulation strategy for bipolar DC distribution networks is proposed.Firstly,the topological structure and power transmission model of the flexibly interconnected device are designed and analyzed,with a focus on its multi-dimensional regulatory characteristics.Secondly,the power transmission models for both mode-switchable direct current transformers and energy storage systems are established.Next,a comprehensive voltage regulation model is developed to minimize the operation costs and penalties for voltage violations,taking into account the coordination between bipolar flexibly interconnected devices and other regulatory devices.Thirdly,the linearization of this model is achieved through techniques such as convex relaxation and piecewise linearization.Finally,the effectiveness and adaptability of the proposed strategy are validated through case studies in 33-bus and 123-bus DC distribution networks.关键词
直流配电网/电压不平衡/柔性互联设备/电压调控/凸松弛Key words
DC distribution network/voltage unbalance/flexibly interconnected device/voltage regulation/convex relaxation引用本文复制引用
张程嘉,杨晓东,魏金萧,杨越,李贺龙,杨之青..基于多维柔性互联设备的双极直流配电网综合电压调控策略[J].电力系统自动化,2026,50(7):153-165,13.基金项目
国家自然科学基金资助项目(52377090) （52377090）
国家自然科学基金联合基金重点支持项目(U22B20116). This work is supported by National Natural Science Foundation of China(No.52377090,No.U22B20116). （U22B20116）
