Research on indirect current control strategy for grid-connected inverter

Author

Liang, Guo ; Aiguo, Xu ; Shaojun, Xie

Author_Institution

Autom. Dept., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing

fYear

2008

fDate

3-5 June 2008

Firstpage

1762

Lastpage

1765

Abstract

The indirect current control strategy for grid-connected inverters in distributed generation (DG) systems is investigated in this paper. Conventional grid-connected inverters are normally operated in current control mode in grid-connected time and operated in voltage control mode in stand-alone time, serious transient problem may occur on the output terminal voltage when the inverters change the operating mode. The indirect current control strategy is researched, with the method, the output voltage of the grid-connected inverters can be kept stable during the transient time. The strategy is validated by simulations and experiments.

Keywords

distribution networks; electric current control; invertors; power grids; current control mode; distributed generation systems; grid-connected inverter; grid-connected time; indirect current control strategy; stand-alone time; voltage control mode; Automation; Circuit faults; Current control; Electronic mail; Filters; Inverters; Publishing; Switches; Thyristors; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2008. ICIEA 2008. 3rd IEEE Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4244-1717-9

Electronic_ISBN

978-1-4244-1718-6

Type

conf

DOI

10.1109/ICIEA.2008.4582822

Filename

4582822