Modern IED in today´s smart grids

Author

Lisowiec, A. ; Nowakowski, Andrzej

Author_Institution

Tele & Radio Res. Inst., Warsaw, Poland

fYear

2013

fDate

11-13 June 2013

Firstpage

288

Lastpage

292

Abstract

The paper describes the various functions that IED´s play in today´s power networks. They are used for protection purposes, power quality analysis, network monitoring, energy metering. They have to be equipped with transmission protocols that are used in substation automation like IEC 61850. To fulfill the requirements of the functions that IEDs perform, advanced algorithms of digital processing of the input voltage and current sample sequences have to be used. In the paper a resampling in digital domain algorithm has been described that is used by protection and power quality analysis functions. Three digital integration filters for Rogowski coil output signal have been presented and compared.

Keywords

digital filters; metering; power supply quality; smart power grids; transport protocols; IEC 61850; IED; Rogowski coil output signal; current sample sequences; digital domain algorithm; digital integration filters; digital processing; energy metering; input voltage; intelligent electronic devices; network monitoring; power networks; power quality analysis; protection purposes; smart grids; substation automation; transmission protocols; Accuracy; Band-pass filters; Coils; Frequency measurement; IIR filters; Power quality; Standards; IEC 61850; Rogowski coil; digital signal processing; protection device;

fLanguage

English

Publisher

ieee

Conference_Titel

Clean Electrical Power (ICCEP), 2013 International Conference on

Conference_Location

Alghero

Print_ISBN

978-1-4673-4429-6

Type

conf

DOI

10.1109/ICCEP.2013.6587003

Filename

6587003