The optimal expansion of AC medium-voltage distribution grids for rural applications is addressed in this study from a heuristic perspective. routes feeder are selected by applying the concept minimum spanning tree limiting number branches that connected to substation (mixed-integer linear programming formulation). In order choose caliber conductors routes, maximum expected current absorbed loa...

This paper describes an approach to intelligent planning which employs a dependency network model to reason with direct, n-order, cumulative and cascading effects. The dependency network is a cyclic graph of nodes (persons, organizations, locations, resources, concepts, etc.) connected by weighted arcs that define the type and strength of dependency between a node pair. The network can be emplo...

In order to study the electromagnetic compatibility of a power system, authors adopted an effective analysis software and proposed a new prediction method. First, simulated and analyzed the electromagnetic transient when switching the no-load bus in the 500kV substation by the ATP software and proved the simulation results were consistent with the actual results; Second, introduced the Gray pre...

As the substation communication world searches for the “Promised LAN”, it would be helpful to have a roadmap to give direction to the search. Many are the expectations of a LAN flowing with data and able to connect with any Intelligent Electronic Device (IED) that was ever made. Such expectations must be tempered with the cost and complexity of achieving them. This paper presents an outline of ...

This paper describes methodology for the computation of the electromagnetic transients in the high voltage substations, taking into account transients on the substation grounding system. Simulation technology is based on the system decomposition. Interconnections between different subsystems are done in each time step using Thevenin equivalents. Frequency dependent impedance of grounding conduc...

Active distribution network planning is of importance for utility companies in terms distributed generation investment, reliability assessment, optimal reactive power planning, substation evaluation, and feeder reconfiguration. However, it challenging current model-based optimization problems to guarantee the performances active due an empirically pre-defined solution space. To overcome this is...