Proving a Concept of Flexible Under-Frequency Load Shedding with Hardware-in-the-Loop Testing

Autor: Andrej Campa, Denis Sodin, Urban Rudez, Rajne Ilievska, Miha Smolnikar
Jazyk: angličtina
Předmět:
Control and Optimization
Computer science
020209 energy
frequency stability margin
simulator za dinamičlne izračune v realnem času
Energy Engineering and Power Technology
under-frequency load shedding
intelligent electronic device
proof of concept
hardware-in-the-loop testing
real-time digital simulator
rate-of-change-of-frequency
02 engineering and technology
preizkušanje v zaprti zanki
lcsh:Technology
rezerva
Electric power system
udc:537
0202 electrical engineering
electronic engineering
information engineering
potrditev koncepta
Electrical and Electronic Engineering
Intelligent electronic device
Engineering (miscellaneous)
podfrekvenčno razbremenjevanje
Flexibility (engineering)
lcsh:T
Renewable Energy
Sustainability and the Environment
020208 electrical & electronic engineering
Hardware-in-the-loop simulation
Control engineering
pametne elektronske naprave
Noise
Smart grid
Real Time Digital Simulator
Energy (miscellaneous)
Voltage
Zdroj: Energies, vol. 13, no. 14, 3607, 2020.
Energies 2020
Energies; Volume 13; Issue 14; Pages: 3607
Energies, Vol 13, Iss 3607, p 3607 (2020)
ISSN: 1996-1073
DOI: 10.3390/en13143607
Popis: 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.
Databáze: OpenAIRE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje