A high speed frequency shift method as a
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S. Yuyama; T. Ichinose; K. Kimoto; T. Itami; T. Ambo; C. Okado; K. Nakajima; S.
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Article
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1994
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Elsevier Science
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English
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A high speed, reliable protection scheme eliminating islanding operation of dispersed, utility interactive PV system was developed. This scheme uses a special frequency-phase characteristics of PV inverters, which shifts the inverter output frequency out of overfrequency/under-frequency limit levels