An Innovative Fast Relay Coordination Method to Bypass the Time Consumption of Optimization Algorithms in Relay Protection Coordination

Considering Pilot Protection in the Optimal Coordination of Distance and Directional Overcurrent Relays

The aim of the relay coordination is that protection systems detect and isolate the faulted part as fast and selective as possible. On the other hand, in order to reduce the fault clearing time, distance protection relays are usually equipped with pilot protection schemes. Such schemes can be considered in the distance and directional overcurrent relays (D&DOCRs) coordination to achieve faster ...

Relay Optimization Method

Insurance-linked securities portfolio with the VaR constraint optimization problem have a kind of weak dominance or ordering property, which enables us to reduce the variables’ dimensions gradually through exercising a genetic algorithm with randomly selected initial populations. This property also enables us to add boundary attraction potential to GA-MPC’s repair operator, among other modifica...

Interference Coordination Oriented User Association Scheme in Cellular Relay Networks

Heterogeneous cellular networks (HCNs) will be the typical network structure for future mobile networks. Relay nodes (RNs), as one type of low power nodes in the HCNs, can be deployed to increase cell coverage and improve cell-edge user throughput. Since RNs may be densely deployed in hot traffic zones, the co-channel interference (CCI) is more serious and complex than that in the conventional ...

Loss-of-Field Protection Relay Coordination for Synchronous Generator and Motor Unit Based on Transient Stability

An approach to online optimization of heuristic coordination algorithms

Due to computational intractability, large scale coordination algorithms are necessarily heuristic and hence require tuning for particular environments. In domains where characteristics of the environment vary dramatically from scenario to scenario, it is desirable to have automated techniques for appropriately configuring the coordination. This paper presents an approach that takes performance...