Power sharing control strategy of parallel inverters in AC microgrid using improved reverse droop control

被引：0

作者：

Chethan Raj D. ^{[1
,2
]}

Gaonkar D.N. ^{[1
,2
]}

Guerrero J.M. ^{[1
,2
]}

机构：

[1] Department of Electrical and Electronics Engineering, National Institute of Technology Karnataka, Surathkal, 575025, Karnataka

[2] Department of Energy Technology, Aalborg University, Aalborg

来源：

International Journal of Power Electronics | 2020年 / 11卷 / 01期

关键词：

Distributed generation; Droop control; Inverters; Microgrid; Output impedance; Reverse droop control; Secondary control; Virtual resistors;

D O I：

10.1504/IJPELEC.2020.103953

中图分类号：

学科分类号：

摘要：

Microgrid structure is developed on the basis of distributed generation units. Microgrid distributed generation units and energy storage devices are connected through inverters interface to the point of common coupling. Microgrid system with multiple inverters, the use of conventional direct and reverse droop control method will cause uneven distribution of power, which is due to the difference between the output impedance and the line impedance of the inverter. In this paper, the traditional reverse droop control method is introduced, the power distribution of inverter output impedance is analysed, and the defects of traditional reverse droop control are pointed out. Adding virtual resistor in the control loop of reverse droop control improves the power sharing and stability of operation, but also leads to the voltage drop in microgrid. To compensate the output voltage deviation, secondary control is proposed. Simulation results show the correctness and effectiveness of the proposed control strategy. Copyright © 2020 Inderscience Enterprises Ltd.

引用

页码：116 / 137

页数：21

共 24 条

[1]

Ahn S.J., Park J.W., Chung I.Y., Moon S.I., Kang S.H., Nam S.R., Power sharing method of multiple distributed generators considering control modes and configurations of a microgrid, IEEE Trans. On Power Delivery, 25, 3, pp. 2007-2016, (2010)

[2]

Akermann T., Andersson G., Soder L., Distributed generation: A definition, Electric Power Systems Research, 57, 6, pp. 195-204, (2001)

[3]

Guerrero J.M., Chandorkar M., Lee T., Loh P.C., Advanced control architectures for intelligent microgrids-part-I: Decentalized and hierarchical control, IEEE Trans. Ind. Electronics, 60, 4, pp. 1254-1262, (2013)

[4]

Guerrero J.M., De Vicuna L.G., Matas J., Castilla M., Miret J., A wireless controller to enhance dynamic performance of parallel inverters in distributed generation systems, IEEE Trans. On Power Electronics, 19, 5, pp. 1205-1213, (2004)

[5]

Guerrero J.M., Matas J., Vicuna L., Castilla M., Miret J., Decentralized control for parallel operation of distributed generation inverters using resistive output impedance, IEEE Trans. Ind. Electronics, 54, 2, pp. 994-1004, (2007)

[6]

Guerrero J.M., Vasquez J.C., Matas J., Hierarchical control of droop controlled AC and DC microgrids - A general approach toward standardization, IEEE Trans. On Industrial Electronics, 58, 1, pp. 158-172, (2011)

[7]

Guerrero J.M., Vasquez J.C., Matas J., Castilla M., De Vicuna L.G., Control strategy for flexible microgrid based on parallel line-interactive UPS system, IEEE Trans. On Industrial Electronics, 56, 3, pp. 726-736, (2009)

[8]

Guerrero J.M., Vicuna L.G., Mata J., Output impedance design of parallel connected ups inverters with wireless load sharing control, IEEE Trans. On Industrial Electronics, 52, 4, pp. 1126-1135, (2005)

[9]

Han H., Liu Y., Sun Y., An improved droop control strategy for reactive power sharing in islanded microgrid, IEEE Trans. On Power Electronics, 30, 6, pp. 3133-3141, (2015)

[10]

Hua H., Xou X., Yang J., Wu J., Su M., Guerrero J.M., Review of power sharing control strategies for islanding operation of ac microgrids, IEEE Trans. On Smart Grid, 7, 1, pp. 1200-1214, (2016)

← 1 2 3 →