Formulas for predicting the dynamic performance of ROCOF relays for embedded generation applications
, 2015 The paper presents a set of formulas for directly predicting the performance of rate-of-change-of-frequency (ROCOF) relays used to detect islanding of embedded synchronous generators.
Morelato, A +4 more
core +1 more source
Enhancing Frequency Regulation in Modern Power Systems Using ANN-Based Virtual Inertia Control
IEEE AccessThis paper provides an Artificial Neural Network-based Virtual Inertia and Damping Control (ANN-VIDC) technique to enhance frequency stability in power systems with high renewable energy penetration.
P. I. D. T. Bala Durai Kannan, K. Ravi
doaj +1 more source
A simple estimation method of grid‐forming inverter inertia based on rate of change of frequency
IET Power ElectronicsInertia is the core index of the estimation of power system frequency stability; a simple estimation method of grid‐forming inverter inertia based on the rate of change of frequency (RoCoF) is proposed in this paper.
Gang Han +7 more
doaj +1 more source
Analisis Perbandingan Relai Rate of Change of Frequency (ROCOF) dan Under Frequency Relay (UFR) dalam Pelepasan Beban di Sistem Kelistrikan Provinsi Lampung Menggunakan Digsilent PowerFactory [PDF]
, 2020 Sistem kelistrikan Lampung memiliki kapasitas pembangkit yang lebih kecil dari beban, sehingga membutuhkan transfer daya yang besar dari Sumatera Selatan. Kondisi ini rawan terhadap stabilitas jika terjadi kehilangan pembangkitan.
Adiv, Rama Salvayer
core
EnergiesThe increasing penetration of converter-interfaced renewable energy sources has led to reduced system inertia and increased frequency stability challenges in modern power systems.
Louwrance Ngoma +2 more
doaj +1 more source
Accuracy Comparison of Frequency and ROCOF Dynamic Estimators under Contingencies
2024 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)The measurement of frequency and Rate of Change of Frequency (ROCOF) is essential for power system monitoring and control. As known, the Phasor Measurement Units (PMUs), especially those based on dynamic estimators, can perform high-rate frequency and ROCOF measurements, thus improving system observability.
Frigo, Guglielmo +2 more
openaire +1 more source
Impact of Synchrophasor Estimation Algorithms in ROCOF-based Under-Frequency Load-Shedding
This paper investigates the impact of synchrophasor estimation algorithms in Under-Frequency Load-Shedding (UFLS) and Load-Restoration (LR) schemes, relying on frequency and Rate-of-Change-of-Frequency (ROCOF) measurements produced by Phasor Measurement ...
Frigo, Guglielmo +3 more
core +2 more sources
Majlesi Journal of Electrical EngineeringThe use of Grid Forming Methodology (GFM) in grid-connected systems represents an innovative approach to improving the stability and flexibility of power grids.
Souhil Drias +3 more
doaj +1 more source
RoCoF Constrained Regional Inertia Security Region: Formulation and Application
IEEE Transactions on Sustainable EnergyThe regional inertia, which determines the regional rate of change of frequency (RoCoF), should be kept in a secure status in renewable-penetrated power systems. To break away from mapping the regional maximum RoCoF with regional inertia in a linearized form, this paper comprehensively studies the regional inertia security problem from formulation to ...
Jiahao Liu 0004 +2 more
openaire +2 more sources
Advanced ROCOF protection of distribution systems
When islanding occurs, power supply from the main grid is interrupted which causes a problem when distributed generators continue to provide power into distributed networks.
Liu, Bohan
core