Search
CSV
RISOptimal Coordination of Distance and Overcurrent Relays Considering a Non-Standard Tripping Characteristic for Distance Relays
The aim of relay coordination is to obtain the optimal relay settings which result in minimum
operating times of the relays, satisfying selectivity constraints. In combined coordination of distance...
Optimal Coordination of Directional Overcurrent Relays in a Microgrid System Using a Hybrid Particle Swarm Optimization
Recently, microgrid operation increased significantly with increasing distributed renewable energy resources in the
power system. Microgrids can operate with and without utility. Fault currents are significantly ...
Coordination of Overcurrent and Distance Relays Using Hybrid Particle Swarm Optimization
Protection of power transmission has an important role in power systems. To have a better protection it is common to
combine difference types of relays, which combination of overcurrent and distance relays is a ...
G-Loc: Indoor localization leveraging gradient-based fingerprint map
Preprocessing of Distance and Directional Overcurrent Relays Coordination Problem Considering Changes in Network Topology
The number of constraints in coordination of distance and directional overcurrent relays (D&DOCRs) in power systems increases significantly by considering changes in network topology, especially in large power systems. ...
Optimal coordination of distance and directional overcurrent relays considering different network topologies
Most studies in relay coordination have focused solely on coordination of overcurrent relays while distance relays are used as the main protection of transmission lines. Since, simultaneous coordination of these two types of relays can provide a...
Q-Learning based Cooperative Multi-Agent System Applied to Coordination of Overcurrent Relays
In this study, a new method for optimum coordination of overcurrent relays is proposed. In order to solve the overcurrent relays coordination problem, a Q-learning based cooperative multi-agent system is designed and applied. In the proposed method...
Applying Hybrid Interval Linear Programming and Genetic Algorithm to Coordinate Distance and Directional Overcurrent Relays
coordination of distance and directional overcurrent relays (D&DOCRs), as the main protections of transmission/subtransmission systems. Generally, relay coordination is a complicated nonlinear optimization problem. The complexity increases drastically...
MILP Approach for Optimal Coordination of Directional Overcurrent Relays in Interconnected Power Systems Electric Power Systems Research
The coordination problem of directional overcurrent relays (DOCRs) is a non-linear and non-convex optimization one. Until now, several methods based on the heuristics and non-linear programming (NLP) approaches have been ...
Parameter Uncertainty in the Optimal Coordination of Overcurrent Relays
Generally the relay coordination problem is solved without considering parameter
uncertainties. While uncertainties in the line parameters and CT ratios make the fault current
passing through the overcurrent relay inaccurate and could...