A method for monitoring the load margin of power systems under load growth variations

MEC Bento - Sustainable Energy, Grids and Networks, 2022 - Elsevier
The load margin is an important safety measure used in operation centers to assess the
voltage stability of power systems. Usually this measure is calculated considering a single …

[HTML][HTML] Online vulnerability assessment of Zone-3 distance relays against static load Encroachment: A novel approach based on fault chain theory

TG Bolandi, V Talavat, J Morsali - … Journal of Electrical Power & Energy …, 2023 - Elsevier
One of the main factors in triggering cascading outages is the undesired operation of zone-3
vulnerable distance relays under static load encroachment. In this paper, to avoid the …

Dynamic reconfiguration of multiobjective distribution networks considering the variation of load and DG using a novel LDEDBO algorithm

Y Wu, L Wang, Z Wan, J Liu, D Fu, Y An, X Zhang - Scientific Reports, 2024 - nature.com
To address the challenges related to active power dissipation and node voltage fluctuation
in the practical transformation of power grids in the field of new energy such as wind and …

Coordinated optimization of control parameters for improving the stability of wind-PV hybrid power systems under improved pelican optimization algorithm

P Liu, Y Wu, J Sun, J Zhao - Electrical Engineering, 2024 - Springer
This paper explores the coordinated optimization of the parameters of controllers, including
power system stabilizer, unified power flow controller with power oscillation damping …

Improved deep neural network (IDNN) with SMO algorithm for enhancement of third zone distance relay under power swing condition

C Sriram, J Somlal, BS Goud, M Bajaj, MF Elnaggar… - Mathematics, 2022 - mdpi.com
A zone 3 distance relay is utilized to provide remote backup protection in the event that the
primary protection fails. However, under stressful situations such as severe loads, voltage …

An Intelligent Distance Relay Sensing Methodology Immune to Power Swing and Load Encroachment

M Arumuga, MJB Reddy - IEEE Sensors Journal, 2022 - ieeexplore.ieee.org
A distance relay (DR) is a complex sensor that operates based on apparent impedance
computed using inputs from the current and voltage sensors. Power swing and load …

Positioning and sizing of PV-Based DG and capacitor in realistic distribution network and verification through ETAP simulation

A Tandon, S Nawaz - Electric Power Components and Systems, 2024 - Taylor & Francis
Distributed generation offers a bright future for electric networks, but requires optimal
allocation of dispersed resources and an acceptable optimization technique. This article …

An adaptive time–frequency approach based secured back-up distance protection scheme for system stress conditions

F Dewangan, M Biswal - Sustainable Energy, Grids and Networks, 2022 - Elsevier
Critical operating conditions of power system may lead to distance relay security issues.
Distance relay back-up protection is offered with long reach setting and due to this under …

A Wide-Area Measurement System-Based Load Encroachment Identification Method Applicable to Power Systems with High Wind Power Penetration

D Xie, Q Chen, Y Sun, N Shao, Y Dong, W Ding - Applied Sciences, 2023 - mdpi.com
One of the main factors in triggering cascading outages is the unexpected tripping of backup
protection caused by load encroachment (LE). Hence, LE should be identified quickly to …

Instantaneous power theory-fuzzy intelligent controller (IPT-FIC) based improved low voltage ride-through strategy for grid connected photovoltaic system

S Bagchi, R Chakraborty, P Bhowmik, P Das - Microsystem Technologies, 2024 - Springer
Abstract The installation of Renewable Energy Sources (RESs) has increased tremendously
over the past few decades. Due to the large-scale grid integration of RESs, many countries …