GIS integrated automation of a near real-time power-flow service for electrical grids

The future of high renewable energy penetration and the consequent power variability produces the need for fast power-flow computations for the useful management of power. Such management must have least requirement for human intervention, achievable through fast and reliable automations. This paper presents Geographic Information System (GIS) integrated automation of a non-iterative power-flow method known as Holomorphic Embedded Power Flow (HEPF) so as to produce a power-flow service over a communication network. Since HEPF reliably guarantees the solution and reaches it very fast through constructing the solution, it is a suitable candidate for near real-time updates of the electrical states of a power system. A four-bus system is first used to explain the holomorphic formulations. Then the results of a 12-bus test system are compared with that of commercial PowerWorld Simulator for corroboration. The results of different loading conditions demonstrate the usefulness of the power-flow service which is continuously provided to a grid which has rapid changes in power.