Dynamic voltage restorer based on active hybrid energy storage system

Author

Xueqian Fu ; Haoyong Chen ; Weike Mo

Author_Institution

Sch. of Electr. Power, South China Univ. of Technol., Guangzhou, China

fYear

2014

Firstpage

1

Lastpage

4

Abstract

In order to solve the problem of voltage sag, Dynamic Voltage Restorer (DVR) is used to compensate load voltage instantly based on active hybrid energy storage system, and its equivalent circuit is presented. Both the mathematical model and the control system of the supercapacitor/battery hybrid system are set up, which improves whole working characteristic and economy of DVR. Simulation and analysis on DVR with active hybrid energy storage system are carried out, and the results show that this active hybrid energy storage system can effectively maintain the voltage level of sensitive load as to long-duration power interrupts and frequent voltage sag.

Keywords

equivalent circuits; power supply quality; secondary cells; supercapacitors; DVR; active hybrid energy storage system; dynamic voltage restorer; equivalent circuit; load voltage compensation; supercapacitor-battery hybrid system; voltage sag; Batteries; Inverters; Power system dynamics; Supercapacitors; Voltage control; Voltage fluctuations; Battery chargers; Supercapacitors; Voltage fluctuations; Voltage sag;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2014 IEEE PES Asia-Pacific

Type

conf

DOI

10.1109/APPEEC.2014.7066155

Filename

7066155