A New Fast Peak Current Controller for Transient Voltage Faults for Power Converters

Jesús Muñoz-Cruzado-Alba, Javier Villegas-Núñez, José Alberto Vite-Frías and Juan Manuel Carrasco Solís
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Jesús Muñoz-Cruzado-Alba: R & D Department, GPTech, Av. Camas N26, Bollullos de la Mitacion 41703, Spain
Javier Villegas-Núñez: R & D Department, GPTech, Av. Camas N26, Bollullos de la Mitacion 41703, Spain
José Alberto Vite-Frías: R & D Department, GPTech, Av. Camas N26, Bollullos de la Mitacion 41703, Spain
Juan Manuel Carrasco Solís: Electronics Engineering Department, Seville University, Av. de los Descubrimientos S/N, Seville 41092, Spain

Energies, 2015, vol. 9, issue 1, 1-18

Abstract: Power converters are the basic unit for the transient voltage fault ride through capability for most renewable distributed generators (DGs). When a transient fault happens, the grid voltage will drop suddenly and probably will also suffer a phase-jump event as well. State-of-the-art voltage fault control techniques regulate the current injected during the grid fault. However, the beginning of the fault could be too fast for the inner current control loops of the inverter, and transient over-current would be expected. In order to avoid the excessive peak current of the methods presented in the literature, a new fast peak current control (FPCC) technique is proposed. Controlling the peak current magnitude avoids undesirable disconnection of the distributed generator in a fault state and improves the life expectancy of the converter. Experimental and simulation tests with high power converters provide the detailed behaviour of the method with excellent results.

Keywords: distributed generators (DGs); voltage ride through (VRT); fast peak current control (FPCC); phase-jump ride through (PJRT); photo-voltaic (PV) systems; dip voltage (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
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