[1]张亦君,李培强,陈琦,等.基于改进SOC幂指数下垂控制的混合储能能量均衡策略[J].福建理工大学学报,2024,22(03):243-249.[doi:10.3969/j.issn.2097-3853.2024.03.006]
 ZHANG Yijun,LI Peiqiang,CHEN Qi,et al.Energy balancing strategy for hybrid energy storage based on improved SOC power exponential droop control[J].Journal of Fujian University of Technology;,2024,22(03):243-249.[doi:10.3969/j.issn.2097-3853.2024.03.006]
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基于改进SOC幂指数下垂控制的混合储能能量均衡策略()
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《福建理工大学学报》[ISSN:2097-3853/CN:35-1351/Z]

卷:
第22卷
期数:
2024年03期
页码:
243-249
栏目:
出版日期:
2024-06-25

文章信息/Info

Title:
Energy balancing strategy for hybrid energy storage based on improved SOC power exponential droop control
作者:
张亦君李培强陈琦刘喜凤张仕鹏
福建理工大学电子电气与物理学院
Author(s):
ZHANG Yijun LI Peiqiang CHEN Qi LIU Xifeng ZHANG Shipeng
School of Electronic, Electrical Engineering and Physics, Fujian University of Technology
关键词:
直流微电网混合储能SOC幂指数下垂控制阻抗在线检测
Keywords:
DC microgrid hybrid energy storage SOC droop control online impedance detection
分类号:
TM7
DOI:
10.3969/j.issn.2097-3853.2024.03.006
文献标志码:
A
摘要:
为了抑制微电网电压波动、消纳不平衡功率,针对直流微电网中的锂电池和超级电容混合储能系统,提出一种改进SOC 幂指数的下垂控制能量管理方法。该方法不仅改进了传统下垂控制电流均衡度差和会导致电压偏差的缺点,还采用阻抗在线检测法量化线路电阻值,消除了其对储能输出电流均衡度的影响,并通过二次控制对下垂控制所引起的直流母线电压偏移进行补偿。基于Matlab/ Sim?ulink 仿真平台搭建了光储直流微电网仿真系统模型,检验了所搭直流微电网的电压稳定效果,并验证了改进SOC 幂指数下垂控制方法相对于传统下垂控制方法的优越性。
Abstract:
In order to suppress the voltage fluctuation of microgrid and absorb unbalanced power, a droop control energy management method based on improved SOC power index is proposed for the hybrid energy storage system of lithium battery and super capacitor in DC microgrid. This method not only improves the shortcomings of poor current balance and voltage deviation caused by traditional droop control, but also uses online impedance detection method to quantify the line resistance value, eliminates its influence on the balance of energy storage output current, and compensates for the DC bus voltage offset caused by droop control through secondary control. Finally, a simulation system model of optical storage DC microgrid is constructed based on the Matlab/Simulink simulation platform, which tests the voltage stability effect of the DC microgrid, and verifies the superiority of the improved SOC power index droop control method over the traditional droop control method.

参考文献/References:

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更新日期/Last Update: 2024-06-25