Real-time accurate power system frequency meter and its quality evaluation based on simulations and large area system observations

Author

Winek, Tomasz ; Staroszczyk, Zbigniew

Author_Institution

Inst. of the Theory of Electr. Eng. & Electr. Meas., Warsaw Univ. of Technol., Poland

Volume

2

fYear

2000

fDate

2000

Firstpage

935

Abstract

The solution of accurate power system frequency meter/registrator is presented. The meter is equipped with a standard PC DAQ-card which is able to perform the background data acquisition process. The method is based on system voltage signal zero-crossings observations, and zero positions processing targeted to instant system frequency estimation. Different observations of the real power system signals are presented-local and distanced, where two parallel observations were made in 25 km distanced subsystems. The results were verified with the standard signals from AFG of the known frequency and it was confirmed that the accuracy is a few hundred μHz

Keywords

data acquisition; frequency measurement; frequency meters; power system measurement; step response; virtual instrumentation; absolute measurements; accurate power system frequency meter; background data acquisition process; instant system frequency estimation; large area system observations; quality evaluation; real power system signals; simulations; standard PC DAQ-card; step response; system voltage signal zero-crossings; virtual panel; zero positions processing; Frequency measurement; Noise measurement; Paper technology; Pollution measurement; Power measurement; Power system measurements; Power system simulation; Power systems; Real time systems; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2000. IMTC 2000. Proceedings of the 17th IEEE

Conference_Location

Baltimore, MD

ISSN

1091-5281

Print_ISBN

0-7803-5890-2

Type

conf

DOI

10.1109/IMTC.2000.848869

Filename

848869