Proving a concept of flexible under-frequency load shedding with hardware-in-the-loop testing

Sodin, Denis (avtor), Ilievska, Rajne (avtor), Čampa, Andrej (avtor), Smolnikar, Miha (avtor), Rudež, Urban (avtor)

It is widely recognized that in the transition from conventional electrical power systems (EPSs) towards smart grids, electrical voltage frequency will be greatly affected. This is why this research is extremely valuable, especially since rate-of-change-of-frequency (RoCoF) is often considered as a potential means of resolving newly arisen problems, but is often challenged in practice due to the noise and its oscillating character. In this paper, the authors further developed and tested one of the new technologies related to under-frequency load shedding (UFLS) protection. Since the basic idea was to enhance the selected technology’s readiness level, a hardware-in-the-loop (HIL) setup with an RTDS was assembled. The under-frequency technology was implemented in an intelligent electronic device (IED) and included in the HIL setup. The IED acted as one of several protection devices, representing a last-resort system protection scheme. All main contributions of this research deal with using RoCoF in an innovative UFLS scheme under test: (i) appropriate selection and parameterization of RoCoF filtering techniques does not worsen under-frequency load shedding during fast-occurring events, (ii) locally measured RoCoF can be effectively used for bringing a high level of flexibility to a system-wide scheme, and (iii) diversity of relays and RoCoF-measuring techniques is an advantage, not a drawback.

• Jezik: Angleški jezik
• Ključne besede: under-frequency load shedding, intelligent electronic device, proof of concept, hardware-in-the-loop testing, real-time digital simulator, frequency stability margin, rate-of-change-of-frequency
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FE - Fakulteta za elektrotehniko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2020
• Št. strani: 17 str.
• Številčenje: Vol. 13, iss. 14, art. 3607
• PID: 20.500.12556/RUL-133787
• UDK: 537
• ISSN pri članku: 1996-1073
• DOI: 10.3390/en13143607
• COBISS.SI-ID: 24709891
• Datum objave v RUL: 15.12.2021

Gradivo je del revije

• Naslov: Energies
• Skrajšan naslov: Energies
• Založnik: Molecular Diversity Preservation International
• ISSN: 1996-1073
• COBISS.SI-ID: 518046745

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 13.07.2020

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: podfrekvenčno razbremenjevanje, pametne elektronske naprave, potrditev koncepta, preizkušanje v zaprti zanki, simulator za dinamičlne izračune v realnem času, rezerva