电力系统自动化2017，Vol.41Issue(23)：22-28,7.DOI:10.7500/AEPS20170217003
含多端柔性直流电网的调度计划优化建模
Optimal Modeling of Dispatch Scheduling for Power Grid with VSC-MTDC System
摘要
Abstract
The expansion and development of power grid with voltage source converter based multi-terminal direct current (VSC-MTDC) system provides a new technical means for grid-connection of large-scale wind power and other clean energy.To have the DC power grid and AC power grid tightly coupled,the traditional scheduling application in the power grid dispatching operation business lacks consideration of direct control unit, AC/DC interaction,DC power flow constraints and other problems,which will face new challenges in the scheduling object,schedule model,equilibrium strategy and AC/DC bilateral network constraints,etc.Aiming at the problems mentioned above,the scheduling optimization modeling method with flexible multi-terminal DC grid is proposed.The proposed model can flexibly deal with AC/DC interaction.The added constraints are those on a new DC power grid active equilibrium and AC/DC bilateral network transmission limits,thus providing a reference for modeling strategy of DC power supply in the traditional scheduling application.The model proposed is applied to the 5-terminal DC power grid connected with the New England 10-machine system,which verifies the effectiveness of the model in the processing of the AC/DC interconnected power grid dispatching schedules.关键词
柔性直流输电/调度计划/多级协调/交直流耦合系统/安全约束Key words
voltage source converter based high voltage direct current(VSC-HVDC)transmission/dispatch scheduling/multi-level coordination/AC-DC coupling system/security constraint引用本文复制引用
许丹,姜曼,郑晓雨,戴赛..含多端柔性直流电网的调度计划优化建模[J].电力系统自动化,2017,41(23):22-28,7.基金项目
北京市科委计划项目(Z161100004816025) （Z161100004816025）
国家电网公司科技项目"±500 kV 柔性直流电网调度技术研究". This work is supported by Beijing Municipal Science & Technology Commission Project (No.Z161100004816025) and State Grid Corporation of China. （No.Z161100004816025）
