Despacho óptimo de potencia reactiva considerando un abordaje multiperíodo

Abstract

The main objective of this study is to propose a new model and solution method for multi-period optimal reactive power dispatch. This is an inherently non-convex and nonlinear problem. Therefore, it is solved by applying a mean-variance mapping optimization metaheuristic. The proposed model allows incorporating intertemporal constraints. One advantage of the model is the design of its objective function that allows to simultaneously assess the feasibility and optimality of a solution. The model and solution approach is validated by using the IEEE 30-bus test system. The results show and allow concluding that the proposed model guarantees an adequate reactive power management that minimizes power losses by keeping transformer taps and capacitor bank movements within limits to maximize lifetime.

Protection Coordination for Wind Farm Integration in the Kosovo Transmission System

“…DGs include renewable and non-renewable sources for electricity generation. The renewable sources comprise PV systems, hydropower plants, wind generators, geothermal generators and biomass generators (Tamayo et al, 2015).…”

Multi-Area and Multi-Period Optimal Reactive Power Dispatch in Electric Power Systems

“…The MP-ORPD allows the assessment of events and the behavior of the power system in the analyzed periods, such as the increase in demand, as well as tap changing in shunt devices and transformers, among others. In this way, possible system problems or limitations can be identified and preventive measures can be taken to avoid system stability or security issues [23,24]. Different indices are used to assess stability in power systems [25,26].…”