Title :
Performance assessment of renewable energy-fed three-phase grid-connected voltage source converters and boost inverters during DC side faults
Author :
Elserougi, A. ; Abdel-khalik, A.S. ; Massoud, Ahmed Mohamed ; Ahmed, Shehab
Author_Institution :
Electr. Dept., Alexandria Univ., Alexandria, Egypt
Abstract :
In renewable energy-fed grid-connected applications, voltage source converters (VSC) offer high flexibility and system controllability features. In addition to the stepped down nature of its output voltage, the VSC is inherently defenseless against faults. On the other hand, boost Inverters provides voltage boosting characteristic and complete blocking capability between the AC grid and the DC side fault which protects the semiconductor devices during DC faults. A simulation study to compare the performance of VSC and boost inverters during DC side faults is conducted in this paper. The simulation results elucidate a significant decrease in the DC fault current in case of boost inverter due to its blocking capability.
Keywords :
fault currents; invertors; renewable energy sources; DC side faults; boost inverters; complete blocking capability; high flexibility; output voltage; performance assessment; renewable energy-fed grid-connected applications; semiconductor devices; system controllability; three-phase grid-connected voltage source converters; Bismuth; Capacitors; Circuit faults; Insulated gate bipolar transistors; Inverters; Power conversion; Boost inverter; DC fault blocking capability; DC side faults; discharge current;
Conference_Titel :
Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE
Conference_Location :
Vienna
DOI :
10.1109/IECON.2013.6699295
