Simulation of a dynamic voltage restorer in distribution systems with microgrids

Author

Qiongni Li ; Chang Liu ; Lin Shen ; Gengyin Li

Author_Institution

State Key Lab. of Alternate Electr. Power Syst. with Renewable Energy Sources, North China Electr. Power Univ., Beijing, China

fYear

2012

fDate

8-9 Sept. 2012

Firstpage

1

Lastpage

5

Abstract

This paper analyzes the structure, the operating characteristics and the control strategy of microgrid. Based on the requirements of power quality and research achievements of the traditional power system, it is considered to introduce the Dynamic Voltage Restorer (DVR) in power distribution system with microgrid to improve the power quality. A method to detect voltage sags is presented, which incorporates morphological low-pass filters with the d-q transformation. A simulation model of the DVR based on PSCAD/EMTDC is proposed. Combining with the microgrid model, the simulation results prove that the topology and control strategy of DVR is correct and effective.

Keywords

distributed power generation; low-pass filters; power distribution control; power filters; power generation control; power supply quality; DVR simulation model; PSCAD-EMTDC; d-q transformation; distribution systems; dynamic voltage restorer simulation; microgrid control strategy; microgrid model; morphological low-pass filters; power distribution system; power quality improvement; voltage sag detection; Microgrid; PSCAD/EMTDC; detection method; dynamic voltage restorer; voltage sag;

fLanguage

English

Publisher

iet

Conference_Titel

Sustainable Power Generation and Supply (SUPERGEN 2012), International Conference on

Conference_Location

Hangzhou

Electronic_ISBN

978-1-84919-673-4

Type

conf

DOI

10.1049/cp.2012.1765

Filename

6493084