Title :
Modern IED in today´s smart grids
Author :
Lisowiec, A. ; Nowakowski, Andrzej
Author_Institution :
Tele & Radio Res. Inst., Warsaw, Poland
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;
Conference_Titel :
Clean Electrical Power (ICCEP), 2013 International Conference on
Conference_Location :
Alghero
Print_ISBN :
978-1-4673-4429-6
DOI :
10.1109/ICCEP.2013.6587003
