A numerical algorithm for direct real-time estimation of voltage phasor, frequency and its rate of change

Vladimir Terzija, Milenko Djuric

Результат исследований: Вклад в журналСтатьярецензирование

9 Цитирования (Scopus)

Аннотация

A new algorithm for direct estimation of voltage phasor, frequency and its rate of change, of a voltage signal distorted by a DC component and contaminated by random noise is presented. The method is based on the non-recursive Least Error Squares Technique (LS Technique). Using digitized samples of voltage at the relay location, the estimation of the voltage signal unknown parameters is improved by means of an update procedure. The algorithm is adapted to the actually estimated frequency iteratively, which improved the measurement accuracy, increased the measurement range and reduced sensitivity to the noise. To demonstrate the performance of the algorithm developed, computer simulated data record tests are presented. The proposed method seems to be particularly useful in the field of frequency relaying.

Язык оригиналаАнглийский
Страницы (с-по)417-428
Число страниц12
ЖурналElectric Machines and Power Systems
Том24
Номер выпуска4
DOI
СостояниеОпубликовано - 1 мая 1996
Опубликовано для внешнего пользованияДа

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