Fault Current limitting with Z-Source Based Dynamic Voltage Restorer
| Title | Fault Current limitting with Z-Source Based Dynamic Voltage Restorer |
| Publication Type | Conference Paper |
| Year of Publication | 2009 |
| Authors | majid Hosseinpour, Moghaddam M P, Mohamadrezapour Y |
| Conference Name | Proceedings of the 44th International Universities Power Engineering Conference |
| Date Published | September |
| Conference Location | University of Strathclyde |
| Keywords | Power Electronics and Devices Power electronics at a system level |
| Abstract | Dynamic voltage Restorer (DVR) is applied to optimize the power quality aspects such as voltage sag compensation. Recently, the application of Z-source inverter is proposed in order to optimize DVR operation. This inverter makes DVR to operate appropriately when the energy storage devices voltage level severely falls. Here, the Z-source inverter based DVR is proposed to compensate voltage disturbance at the PCC and to reduce the fault current in downstream of DVR. By calculating instantaneous current magnitude in synchronous frame, control system recognizes if the fault exists or not, and determines whether DVR should compensate voltage disturbance or try to reduce the fault current. The proposed system is simulated under voltage sag and swell and short circuit conditions. The simulation results show that the system operates correctly under voltage sag and short circuit conditions |
