Energy Management Strategy for Microgrid of Multi-energy Storage Based on Dual Droop Control

被引：0
|
作者：
Li Y. [1 ]
Lei Y. [1 ]
Wang J. [1 ]
He X. [1 ]
Wang X. [1 ]
机构：
[1] College of Electrical Engineering, Sichuan University, Chengdu
来源：
Gaodianya Jishu/High Voltage Engineering | 2023年 / 49卷 / 12期
关键词：
DC bus voltage; DC microgrid; dual droop control; energy storage system; power distribution;
D O I：
10.13336/j.1003-6520.hve.20220213
中图分类号：
学科分类号：
摘要：
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 converter 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. © 2023 Science Press. All rights reserved.
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页码：5161 / 5172
页数：11
相关论文
共 25 条
  • [1] HOSSEINIPOUR A, HOJABRI H., Virtual inertia control of PV systems for dynamic performance and damping enhancement of DC microgrids with constant power loads, IET Renewable Power Generation, 12, 4, pp. 430-438, (2018)
  • [2] DRAGICEVIC T, GUERRERO J M, VASQUEZ J C, Et al., Supervisory control of an adaptive-droop regulated dc microgrid with battery management capability, IEEE Transactions on Power Electronics, 29, 2, pp. 695-706, (2014)
  • [3] LEI Yong, LIN Xiaodong, Application of hybrid energy storage system based on SMES and BESS in smoothing the power fluctuations of wind farms, High Voltage Engineering, 45, 3, pp. 983-992, (2019)
  • [4] LI Yongkai, LEI Yong, LIN Xiaodong, Application of superconducting magnetic energy storage-current limiter to improve the transient stability of photovoltaic grid-connected power generation system, High Voltage Engineering, 46, 1, pp. 90-98, (2020)
  • [5] LIU Fang, LIU Wei, WANG Haodong, Et al., Review on oscillation mechanism and analysis methods of high proportion renewable energy power system, High Voltage Engineering, 48, 1, pp. 95-113, (2022)
  • [6] ZHENG L J, JIANG F Y, SONG J C, Et al., A discrete-time repetitive sliding mode control for voltage source inverters, IEEE Journal of Emerging and Selected Topics in Power Electronics, 6, 3, pp. 1553-1566, (2018)
  • [7] PURICELLI F G, D'ARCO S, SUUL J A, Et al., Evaluation of inertia emulation strategies for DC-voltage-controlled and power-controlled converter stations in HVDC interconnections, 2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, pp. 832-838, (2020)
  • [8] ZHANG Y J, WANG J, LI H, Et al., Dynamic performance improving sliding-mode control-based feedback linearization for PV system under LVRT condition, IEEE Transactions on Power Electronics, 35, 11, pp. 11745-11757, (2020)
  • [9] JIANG J B, LIU F, PAN S Z, Et al., A conservatism-free large signal stability analysis method for DC microgrid based on mixed potential theory, IEEE Transactions on Power Electronics, 34, 11, pp. 11342-11351, (2019)
  • [10] MORSTYN T, HREDZAK B, AGELIDIS V G., Control strategies for microgrids with distributed energy storage systems: an overview, IEEE Transactions on Smart Grid, 9, 4, pp. 3652-3666, (2018)
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