高电压技术2023，Vol.49Issue(12)：5161-5170,10.DOI:10.13336/j.1003-6520.hve.20220213
基于双重下垂控制的多储能直流微电网能量管理策略
Energy Management Strategy for Microgrid of Multi-energy Storage Based on Dual Droop Control
摘要
Abstract
The energy storage system is of great significance in stabilizing the bus voltage and the safe operation in DC microgrid.The difference of line impedance between energy storage units leads to the deviation of DC bus voltage and thus the power can not be distributed accurately between energy storage units.This paper proposes dual droop control,which adopts two-stage droop control.The improved first-stage droop control compensates the power deviation caused by line impedance and realizes the voltage stability.The second-stage droop control realizes the power distribution accurately.After the fluctuation amplitude of bus voltage is taken into account,this paper analyses the power voltage curve of con-verter with droop characteristics,and studies the selection range of droop coefficient.The system model is developed to investigate the effects of coupling relationship in the system parameters.Finally,the simulation results in the MATLAB/Simulink verify the effectiveness and robustness of the proposed method.关键词
直流微电网/储能系统/双重下垂控制/功率分配/直流母线电压Key words
DC microgrid/energy storage system/dual droop control/power distribution/DC bus voltage引用本文复制引用
李云凤,雷勇,王进武,何鑫,王小昔..基于双重下垂控制的多储能直流微电网能量管理策略[J].高电压技术,2023,49(12):5161-5170,10.基金项目
四川省科技计划(基于HES-SMES混合储能控制的5G通讯基站风光互补节能供电系统研究)(2021YFG0254).Project supported by Science and Technology Plan of Sichuan Province(Research on a 5G Communication Base Station Wind Solar Complementary Energy-saving Power Supply System Based on HES-SMES Hybrid Energy Storage Contro)(2021YFG0254). （基于HES-SMES混合储能控制的5G通讯基站风光互补节能供电系统研究）
