Study on the Fuzzy Control Strategy Based on Back-to-Back Micro Grid Connection

Author

Liu Jia-jun ; Yao Li-xiao ; Tian Dong-meng ; Liu Bo ; Liu Dong

Author_Institution

Inst. of Water Resources & Hydro-Electr., Xi´an Univ. of Technol., Xi´an, China

fYear

2012

fDate

27-29 March 2012

Firstpage

1

Lastpage

5

Abstract

This paper proposes a method of microgrid paralleling with large grid based on back to back VSC. In double-loop control of back to back VSC, the outer loop control strategy is fuzzy control strategy , the outer loop control references can be established by using the ratio between frequency differences and active power transmission and the ratio of reactive power transmission between voltage differences, then control parameters can be regulated automatically. The results of PSCAD/EMTDC simulation show the effectiveness of the method and that fuzzy control can increase dynamic response and stability of grid paralleling.

Keywords

distributed power generation; fuzzy control; power system CAD; power system dynamic stability; reactive power control; PSCAD/EMTDC simulation; back to back VSC; back-to-back microgrid connection; double-loop control; dynamic response; fuzzy control; microgrid paralleling; outer loop control; reactive power transmission; stability; voltage source converter; Fuzzy control; Power conversion; Power system stability; Reactive power; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2012 Asia-Pacific

Conference_Location

Shanghai

ISSN

2157-4839

Print_ISBN

978-1-4577-0545-8

Type

conf

DOI

10.1109/APPEEC.2012.6307268

Filename

6307268