An Autonomous-frequency-split Power Control Method for Hybrid Energy Storage System

被引：0

作者：

Chen Y. ^{[1
]}

Tan W. ^{[1
]}

Zhou X. ^{[1
]}

Zhou L. ^{[1
]}

Yang L. ^{[1
]}

Wu W. ^{[1
]}

机构：

[1] National Electric Power Conversion and Control Engineering Technology Research Center, Hunan University, Changsha

来源：

Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2019年 / 46卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Autonomous-frequenay-split coritrol; DC microgrid; Droop control; Energy storage system; Virtual impedance;

D O I：

10.16339/j.cnki.hdxbzkb.2019.04.009

中图分类号：

学科分类号：

摘要：

In view of the intermittent distributed power output and load variability, energy storage becomes an important way to support DC microgrid voltage and improve power quality. In order to make full use of the advantages of hybrid energy storage to achieve reasonable power distribution, an autonomous-frequency-split power control strategy for hybrid energy storage is proposed. In this method, the equivalent output impedance of converters is reshaped by introducing the virtual impedance or virtual capacitor in the droop control. By this way, the advantages of supercapacitor and battery can be integrated. At the load mutation, supercapacitor rapidly absorbs the high-frequency component of power fluctuation to improve the dynamic respond speed. Meanwhile, battery is mainly used to balance the low-frequency power in order to extend the service life and ensure the reliable operation of system. The simulation verifies the correctness of the proposed method. © 2019, Editorial Department of Journal of Hunan University. All right reserved.

引用

页码：65 / 73

页数：8

共 25 条

[1]

Zhao B., Xue M.D., Chen R.Z., Et al., An economic dispatch model for microgrid with high renewable energy resource penetration considering forecast errors, Automation of Electric Power Systems, 38, 7, pp. 1-8, (2014)

[2]

Singh R.S.S., Abbod M., Balachandran W., A design scheme of control/optimization system for hybrid solar-wind and battery energy storages system, 201651st International Universities Power Engineering Conference (UPEC), pp. 1-6, (2016)

[3]

Justo J.J., Mwasilu F., Ju L., Et al., AC-microgrids versus DC-microgrids with distributed energy resources: a review, Renewable and Sustainable Energy Reviews, 24, pp. 387-405, (2013)

[4]

Chen D., Xu L., Autonomous DC voltage control of a DC microgrid with multiple slack terminals, IEEE Transactions on Power Systems, 27, 4, pp. 1897-1905, (2012)

[5]

Choi M.E., Kim S.W., Seo S.W., Energy management optimizationin a battery/super capacitor hybrid energy storage system, IEEE Transactions on Smart Grid, 3, 1, pp. 463-472, (2012)

[6]

Wang C.S., Hong B.W., Guo L., Dispatch strategies of PV-battery microgrid in different scenarios, Power System Technology, 37, 7, pp. 1776-1782, (2013)

[7]

Xu Y.L., Zhang W., Hug G., Et al., Cooperative Control of Distributed Energy Storage Systems in a Microgrid, IEEE Transactions on Smart Grid, 6, 1, pp. 1-11, (2015)

[8]

Liu S., Li Z.L., Wang Y., Et al., Optimal capacity allocation of energy storage in micro-grid with distributed generation, Power System Protection and Control, 44, 3, pp. 78-84, (2016)

[9]

Li F., Zhang J.C., Zhu L.G., Control method of hybrid energy storage system for photovoltaic power balancing, Chinese Journal of Power Sources, 40, 2, (2016)

[10]

Kakigano H., Nishino A., Miura Y., Et al., Distribution voltage control for DC microgrid by converters of energy storages considering the stored energy, IEEE Energy Conversion Cogress and Exposition, pp. 2851-2856, (2010)

← 1 2 3 →