Study of three control strategies for micro-source local load imbalance in micro-grid

Author

Huo, Qunhai ; Tang, Xisheng ; Kong, Li

Author_Institution

Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing, China

fYear

2009

fDate

6-7 April 2009

Firstpage

1

Lastpage

4

Abstract

The output voltage asymmetry could lead to working disorders and even damage of electronic devices. One of most common causes of micro-source three-phase output voltage asymmetry is local micro-source three-phase load imbalance. The problem of load imbalance has not yet the relatively general solution for micro-grid three-phase four-wire structure at present. In this paper, the two existing control strategies are firstly analyzed and improved, and then Sliding Mode Variable Structure Control (SMVSC) is introduced. Three control strategies are compared at last.

Keywords

distributed power generation; power distribution control; variable structure systems; microgrid; microgrid three-phase four-wire structure; microsource local load imbalance; microsource three-phase output voltage asymmetry; output voltage asymmetry; sliding mode variable structure control; three control strategies; Capacitors; Circuit topology; Electric variables control; Energy storage; Filters; Helium; Pulse width modulation; Sliding mode control; Transfer functions; Voltage control; Compensation method; Imbalanced load; Micro-grid; Micro-source; Tracking method; the Sliding Mode Variable Structure;

fLanguage

English

Publisher

ieee

Conference_Titel

Sustainable Power Generation and Supply, 2009. SUPERGEN '09. International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-4934-7

Type

conf

DOI

10.1109/SUPERGEN.2009.5348217

Filename

5348217