FPGA implementation of an Islanding detection technique for microgrid using periodic maxima of superimposed voltage components

In this study, a novel islanding detection technique (IDT) based on the islanding discrimination factor using the periodic maxima of superimposed voltage components is proposed. The voltage profile of the target distributed generator is monitored continuously and its sequence components are extracte...

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Veröffentlicht in:	IET generation, transmission & distribution Jg. 14; H. 9; S. 1673 - 1683
Hauptverfasser:	Kumar, Praveen, Kumar, Vishal, Pratap, Rajendra
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	The Institution of Engineering and Technology 11.05.2020
Schlagworte:	distributed power generation field programmable gate arrays field‐programmable gate array implementation half‐angle theorem hardware description language Verilog hardware description languages hardware resources hardware‐in‐loop verification IDT algorithm islanding detection technique islanding discrimination factor islanding event MG system microgrid test system nonislanding event perfect power balance condition periodic maxima power distribution faults power engineering computing reconfigurable hardware Research Article sequence components superimposed voltage components target distributed generator voltage profile field-programmable gate array implementation field programmable gate arrays islanding discrimination factor islanding event target distributed generator power distribution faults distributed power generation hardware description languages power engineering computing microgrid test system perfect power balance condition islanding detection technique hardware description language Verilog sequence components half-angle theorem periodic maxima superimposed voltage components reconfigurable hardware hardware resources hardware-in-loop verification MG system voltage profile IDT algorithm nonislanding event
ISSN:	1751-8687, 1751-8695
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Zusammenfassung:	In this study, a novel islanding detection technique (IDT) based on the islanding discrimination factor using the periodic maxima of superimposed voltage components is proposed. The voltage profile of the target distributed generator is monitored continuously and its sequence components are extracted using half-angle theorem. A modular approach is used to implement the IDT algorithm, which is targeted on the reconfigurable hardware, i.e. field-programmable gate array. Hardware description language Verilog has been used to optimise the hardware resources and minimise the computational complexity. Hardware-in-loop verification of the proposed IDT has been done for islanding and non-islanding events with a microgrid (MG) test system developed on real-time digital simulator. Various cases for both islanding and non-islanding events, namely different faults are realised on the developed MG system. The results suggest that the proposed scheme successfully differentiates islanding events from a non-islanding event, and also detects the islanding event accurately under perfect power balance condition within half a cycle.
ISSN:	1751-8687 1751-8695
DOI:	10.1049/iet-gtd.2018.5914