A method of determination of fundamental frequency´s symmetric sequences and higher harmonics of three-phase voltage systems

Author

Shcherba, Anatoliy A. ; Makov, D.K.

Author_Institution

Dept. of Electr. Power Supply, Technol. Syst. Inst. of Electrodynamics, Kiev, Ukraine

fYear

2014

fDate

2-6 June 2014

Firstpage

74

Lastpage

76

Abstract

The proposed method of digital determination of symmetric sequences of three-phase electric voltage. It uses the following steps: tuning the frequency of reading (a multiple of 3) instantaneous values to the network´s fundamental frequency; analog-digital transformation of instantaneous values of net-work´s three-phase voltages with memorizing; selection of codes containing the desired symmetric sequences; selection of fundamental frequency voltage´s codes. This method is simpler and more precise comparing to those well-known.

Keywords

analogue-digital conversion; frequency estimation; harmonics suppression; power supply quality; analog-digital transformation; code selection; frequency tuning; fundamental frequency symmetric sequences determination; fundamental frequency voltage code; higher harmonics determination; three-phase voltage system; Accuracy; Frequency measurement; Harmonic analysis; Indexes; Power system harmonics; Registers; Voltage measurement; asymmetry coefficient; indexes of electric power´s quality; negative phase-sequence voltage system; positive phase-sequence voltage system;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Energy and Power Systems (IEPS), 2014 IEEE International Conference on

Conference_Location

Kyiv

Print_ISBN

978-1-4799-2265-9

Type

conf

DOI

10.1109/IEPS.2014.6874206

Filename

6874206