电力工程技术2026，Vol.45Issue(1)：93-105,13.DOI:10.12158/j.2096-3203.2026.01.009
基于主从能量控制的MMC-MTDC盈余功率消纳策略
A surplus power absorption strategy in MMC-MTDC systems based on master-slave energy control
摘要
Abstract
Modular multilevel converter based multi-terminal direct current(MMC-MTDC)systems rely on energy-dissipating devices to handle surplus power caused by AC-side faults at the receiving-end,which suffers from poor economic efficiency and significant energy waste.To fully exploit the inherent surplus power absorption capability of MMC-MTDC systems and reduce dependence on energy-dissipating devices.A master-slave energy coordination strategy is proposed for interactive power absorption among multiple converter stations.Firstly,an MMC-MTDC control model is established,and the feasibility of surplus power absorption through energy-based control is analyzed.Subsequently,a three-dimensional energy model of the MMC is introduced to achieve decoupled energy control for each pole of the converter stations.Based on a simplified MMC-MTDC system model,active energy control schemes are designed for different types of converter stations.Furthermore,inspired by the master-slave control concept,a timing-based energy coordination logic is developed to address various AC-side fault scenarios at different receiving-end stations and two categories of surplus power levels,thereby enabling coordinated utilization of available energy margins across multiple converter stations.Finally,a MMC-MTDC system is implemented in PSCAD/EMTDC for simulation validation.Results demonstrate that the proposed strategy effectively coordinates multiple converter stations energy control without requiring energy-dissipating devices.The strategy can adapt to diverse surplus power conditions and successfully achieve fault ride-through.关键词
交流故障/盈余功率/基于模块化多电平换流器的多端柔性直流(MMC-MTDC)/能量控制/主从协调/时序逻辑设计Key words
AC-side fault/surplus power/modular multilevel converter based multi-terminal direct current(MMC-MTDC)/energy control/master-slave coordination/timing-based control logic分类
信息技术与安全科学引用本文复制引用
王骆,王宁,张倩茅,秦梁栋,张建坡,吴云锐..基于主从能量控制的MMC-MTDC盈余功率消纳策略[J].电力工程技术,2026,45(1):93-105,13.基金项目
本文得到国网河北省电力有限公司科技项目"考虑受端电网承载力的直流输电容量规划技术研究"(SGTYHT/23-JS-001)资助,谨此致谢! （SGTYHT/23-JS-001）
