电力建设2024，Vol.45Issue(11)：34-49,16.DOI:10.12204/j.issn.1000-7229.2024.11.004
一种新型混联模块化储能系统及其高效柔性电能路由策略
Modular Flexible Energy-Storage System Integrated with Distributed Generation and its Efficient Energy Routing Strategy
摘要
Abstract
Access to renewable energy in distribution networks causes many problems such as inflexible operation modes,unbalanced loads,large disturbances in closed-loop operation,and limited capacity for renewable energy consumption.Currently,flexible and controllable topologies that can rapidly consume renewable energy are urgently required.This paper proposes a new modular AC/DC hybrid energy-storage system that has both distributed and centralized flexible power ports and is suitable for flexible interconnection applications in new power system distribution networks.The system adopts a modular design,with multiple types of terminals such as distributed power-generation units,energy-storage units,and critical loads connected to the medium-voltage DC link of the cascaded H-bridge unit.Each module is connected to the load bus through a high-frequency magnetic isolation channel,which configures the power generation and storage ports into a fully distributed structure.The AC side of each module is connected in series to achieve the power interaction with the three-phase medium-and high-voltage AC power grid,resulting in the formation of low-voltage DC,medium-voltage DC,medium-voltage DC,medium-voltage DC,and medium-voltage AC hybrid ports.In addition,a segmented energy management strategy is proposed to maintain stable system operation and achieve fully autonomous energy routing involving the AC grid,distributed generation,energy storage,and loads.The feasibility of the proposed modular AC-DC hybrid energy-storage architecture and its control strategy were verified using software simulation.关键词
能量管理/分级控制/混合功率模块/故障穿越Key words
energy management/hierarchical control/hybrid power module/fault toleration分类
信息技术与安全科学引用本文复制引用
代子阔,徐妍,张东升,何明,张海洋,张佳琪,汪诚..一种新型混联模块化储能系统及其高效柔性电能路由策略[J].电力建设,2024,45(11):34-49,16.基金项目
江苏省自然科学基金项目(BK20190461) （BK20190461）
国网辽宁省电力有限公司科技项目(2021YF-63) This work is supported by Natural Science Foundation of Jiangsu Province(No.BK20190461)and State Grid Liaoning Electric Power Co.,Ltd.(No.2021YF-63). （2021YF-63）
