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2011 (Vol. 3, Issue: 11)
Article Information:

Voltage Quality Enhancement and Fault Current Limiting with Z-Source based Series Active Filter

F. Gharedaghi, H. Jamali, M. Deysi and A. Khalili
Corresponding Author:  F. Gharedaghi 

Key words:  Dynamic voltage restorer, fault current, inverter, z-source voltage disturbance, , ,
Vol. 3 , (11): 1246-1252
Submitted Accepted Published
2011 July, 26 2011 September, 09 2011 November, 25

In this study, series active filter or dynamic voltage restorer application is proposed for reduction of downstream fault current in addition to voltage quality enhancement. 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 device’s 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.
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  Cite this Reference:
F. Gharedaghi, H. Jamali, M. Deysi and A. Khalili, 2011. Voltage Quality Enhancement and Fault Current Limiting with Z-Source based Series Active Filter.  Research Journal of Applied Sciences, Engineering and Technology, 3(11): 1246-1252.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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