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Stable Operation of PV Plants to Achieve Fault Ride Through Capability - Evaluation in Field and Laboratory Tests

 
: Doetter, G.; Ackermann, F.; Bihler, N.; Grab, R.; Rogalla, S.; Singer, R.

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Institute of Electrical and Electronics Engineers -IEEE-:
IEEE 5th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2014 : Galway, Ireland, 24 - 27 June 2014
Piscataway, NJ: IEEE, 2014
ISBN: 978-1-4799-5116-1
ISBN: 978-1-4799-5115-4
8 pp.
International Symposium on Power Electronics for Distributed Generation Systems <5, 2014, Galway>
English
Conference Paper
Fraunhofer ISE ()
Elektrische Energiesysteme; Energieeffiziente Leistungselektronik; Netzgekoppelte Wechselrichter und Speichersysteme; Stromnetze; Wechselrichter und Speichersysteme

Abstract
This paper first explains the required feed-in of voltage supporting currents during grid faults in a simplified case. Secondly, resonance points of the grid connection point are calculated analytically. The influence of weak grid conditions and large numbers of inverters is analysed. To underline the theoretical discussion on test conditions, measurements concerning Low Voltage Ride Through (LVRT) and stable operation of PV plants are presented. They comprise measurements from single inverters, as well as from large PV plants in the megawatt range.

: http://publica.fraunhofer.de/documents/N-319916.html