In the energy storage system without communication interconnection line
it is difficult to maintain power balance and voltage stability of DC bus without the increase of cost and complexity. To solve this problem
a coordinated control strategy for DC bus is proposed. The DC/AC converter is in constant DC voltage control mode or constant AC voltage control mode. An improved two-stage DC voltage deviation control method including battery charging/discharging control is used in two DC/DC converters. The typical operating modes are analyzed to show how these converters work together in the system. A microgrid experimental platform is set up to verify the proposed control strategy. The effectiveness and practicability of control strategy are verified by the experimental results.
Coordinated Control Strategy of DC Fault Ride-through for Flexible DC Grid-connected System of Wind Power Based on Energy Storage
Construction Scheme of Voltage-supporting Renewable Energy Station Based on Distributed Synchronous Condensers—Part Two Coordinated Control Strategy and Test Verification
用于大规模新能源架空线路送出的储能型柔性直流输电系统
Related Author
SUN Yinfeng
LU Yuze
LIU Yuhan
WANG Zhenhao
LI Guoqing
WU Xueguang
Yinfeng SUN
Yuze LU
Related Institution
Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education(Northeast Electric Power University)
Global Energy Interconnection Research Institute Co., Ltd.
Beijing Key Laboratory of DC Power Grid Technology and Simulation
State Grid Jibei Electric Power Research Institute
Power Dispatch and Control Center of State Grid Jibei Electric Power Co., Ltd.