Please use this identifier to cite or link to this item: http://ea.donntu.edu.ua:8080/jspui/handle/123456789/23371
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dc.contributor.authorГРИБ, О.Г.-
dc.contributor.authorGRYB, O.-
dc.contributor.authorЖданов, Р.В.-
dc.contributor.authorZHDANOV, R.-
dc.contributor.authorГапон, Д.А.-
dc.contributor.authorGAPON, D.-
dc.contributor.authorЗУЕВ, A.A.-
dc.contributor.authorЗУЄВ, А.О.-
dc.contributor.authorZUEV, A.-
dc.date.accessioned2013-10-22T10:48:31Z-
dc.date.available2013-10-22T10:48:31Z-
dc.date.issued2013-
dc.identifier.citationНаукові праці Донецького національного технічного університету. Серія "Електротехніка і енергетика". № 2 (15), 2013 р., 338 с.en_US
dc.identifier.urihttp://ea.donntu.edu.ua/handle/123456789/23371-
dc.descriptionThe most common methods, used in power solutions are discrete Fourier transform, calculation of RMS values, adaptive filters, wavelet transform, Stockwell-transform. A major shortcoming of existing methods is that they can not properly take into account the various input distortions. This may affect accuracy and efficiency of the device wl1iles the various transient events. The measurement method of power signals based on least square approximation is described in this paper. Curve fit function includes high harmomcs, frequency, it’s rate of change and linear components. Goals of method are good flexibility and performance. Measuring time can be chosen between half to ten periods of nominal frequency with no penalty while interval is not integer number of periods. Also, this method allows to assess the quality of approximation as the standard deviation of the curve fit of the original signal, referred to the amplitude of the fundamental harrnomc. Application of quality assessment approximations can significantly enhance the sustainability of the measuring elements to all kinds of disturbances caused by transients in the system. On other hand, method demands powerful hardware for real time calculation. Simulation results on highly corrupted current signal are given. Simulation results confirm the high efficiency and stability of the method. For estimating amplitude of the harmomcs enough two to three periods of the fundamental harmomc, while high accuracy measurements of frequency demands more than five periods. Described method can be successfully used in many applications that require measurement of the considered parameters of the electric signal.en_US
dc.description.abstractОписан метод измерения параметров электрических сигналов промышленной сети, использующий аппроксимацию входного сигнaла функцией специального вида c помощью метода наименьших квадратов. Приведены основные формулы и соотношения. Показаны результаты работы метода на выборочных тестовых сигналах.en_US
dc.publisherДонНТУen_US
dc.relation.ispartofseriesЭлектротехника и энергетика;-
dc.subjectэлектрические сетиen_US
dc.subjectкачество электрической энергииen_US
dc.subjectизмерение параметров электропотребленияen_US
dc.subjectметод наименьших квадратовen_US
dc.subjectелектричні мережіen_US
dc.subjectякість електричної енергііen_US
dc.subjectвимірювання параметрів електроспоживанняen_US
dc.subjectметод найменших квадратівen_US
dc.subjectpower systemen_US
dc.subjectpower quality,en_US
dc.subjectmeasurement of electricity parametersen_US
dc.subjectleast squares methoden_US
dc.titleМЕТОД ИЗМЕРЕНИЯ ПОКАЗАТЕЛЕЙ КАЧЕСТВА И ЭНЕРГОПОТРЕБЛЕНИЯ B ЭЛЕКТРИЧЕСКИХ СЕТЯХen_US
dc.title.alternativeМетод вимірювання показників якості та енергоспоживання в електричних мережах.en_US
dc.title.alternativePower Quality and Consumption Estimation Methoden_US
dc.typeArticleen_US
Appears in Collections:2013_Випуск № 2 (15)

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