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Measuring method for deciding direction to a flickering source
Högskolan i Borås, Institutionen Ingenjörshögskolan.
Unipower AB.
2003 (engelsk)Patent (Annet (populærvitenskap, debatt, mm))
Abstract [en]

Method and arrangement for deciding the direction to a flickering source in relation to a measurement point in an electrical network with alternating current with a network frequency with low-frequency amplitude variations from the flickering source. The method includes the steps: recording an amplitude-modulated current signal having signals that originate from the network frequency and the low-frequency amplitude variations in the current signal; recording an amplitude-modulated voltage signal having signals that originate from the network frequency and the low-frequency amplitude variations in the voltage signal; creating a flicker power with a sign value by multiplication of the low-frequency amplitude variations in the current signal and the low-frequency amplitude variations in the voltage signal, and analyzing the sign value, with the sign value indicating in which direction the flickering source is to be found in relation to the measurement point.

sted, utgiver, år, opplag, sider
2003.
Emneord [en]
Voltage flicker, voltage flicker assessment, flicker power flow, power quality, IEC 61000-4-15
HSV kategori
Identifikatorer
URN: urn:nbn:se:hb:diva-1081Lokal ID: 2320/13160OAI: oai:DiVA.org:hb-1081DiVA, id: diva2:868803
Patent
US 7640118 (2009-12-29)Tilgjengelig fra: 2015-11-11 Laget: 2015-11-11 Sist oppdatert: 2018-03-21bibliografisk kontrollert

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