in this paper, a multi-objective reconfiguration problem has been solved simultaneously by a modified ant colony optimization algorithm. two objective functions, real power loss and energy not supplied index (ens), were utilized. multi-objective modified ant colony optimization algorithm has been generated by adding non-dominated sorting technique and changing the pheromone updating rule of ori...

<span lang="EN-US">Voltage stability represents one of the main issues in electrical power system. Under voltage load shedding (UVLS) has long been regarded as most successful techniques to prevent collapse. However, ordinary schemes do not consider different models and decreasing ‎economic cost that resulted from disconnection, so dual with reactive compensation are needed. Usually loads...

The high bandwidth and the relatively long-lived characteristics of digital video are key limiting factors in the wide-spread usage of streaming content over the Internet. The problem is further complicated by the fact that video popularity changes over time. In this paper, we study caching issues for a cluster-based streaming proxy in the face of changing video popularity. We show that the cac...

Presence of distributed generation (DG) in distribution systems has significant impacts on the operational characteristics of these systems, also using capacitor for reactive compensation and loss reduction is so common. Injected harmonic currents from nonlinear loads into distribution system distort all of voltages and currents and must be considered when placing the capacitor banks so that th...

in this paper, simultaneous placement of distributed generation, capacitor bank and protective devices are utilized to improve the efficiency of the distribution network. the objectives of the problem are reduction of active and reactive power losses, improvement of voltage profile and reliability indices and increasing distribution companies’ profit. the combination of firefly algorithm, parti...

<span>Minimization of real power loss and improvement voltage authenticity the network are amongst key issues confronting systems owing to heavy demand development problem, contingency transmission distribution lines financial costs. The distributed generators (DG) has become one strongest mitigating strategies for optimize reliability over integration capacitor banks reconfiguration. Thi...