Title :
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
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;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2014 IEEE PES Asia-Pacific
DOI :
10.1109/APPEEC.2014.7066155
