Real-time thermal capacity estimation is not only part of prognostics and health management but also determines the dynamic loading capability traction transformer. The hot-spot temperature (HST) vital parameter for real-time estimation. In high-speed railway, unbalanced loads two phases transformer cause winding losses therefore affect top-oil further influence HST in each phase. order to expl...

Wireless local-area networks represent a viable broadband Internet access solution for enterprise, residential and public areas. Due to its short range radio, multiple wireless access points are necessary to cover a certain physical area. The tendency of mobile users to group in certain areas of interest and of mobile devices to connect to the access point with the highest signal strength deter...

Penetration of equipment such as photovoltaic power generations (PV), heat pump water heaters (HP), and electric vehicles (EV) introduces voltage unbalance issues in distribution systems. Controlling PV energy storage system (ESS) outputs or coordinated EV charging are investigated for compensation. However, some exist, dependency on installed capacity fairness among consumers. Therefore, the i...

A formidable challenge that hinders the widespread adoption of renewable energy sources is potential mismatch between their intermittent supply and fluctuating demand. This necessitates proper coordination to moderate temporal net load variations while reducing costly curtailment production. By capturing physical security constraints unbalanced distribution systems, this paper formulates a prob...

We consider the load balancing and coverage problem of femtocell networks in indoor environment. We propose a novel framework exploiting the Voronoi diagram with respect to the radio propagation distance. Our initial power assignment scheme achieves maximal indoor coverage with minimized maximum required transmit power, which results in reduced interference. Our approach can adopt any radio pro...

The increasing presence of inverter-based distributed generation (DG) units in distribution networks (DNs) requires control methods that achieve high performance not only during normal operating conditions, but also under unbalanced conditions. With a high probability, a type of voltage unbalance in DNs is unequal three-phase voltage magnitudes at the fundamental system frequency. This can occu...

Given the fact that more than half of the world lacks a wired network infrastructure, satellite networks are seen as an important alternative to achieve global coverage. Since most of the world population lives around the equator or in middle-latitude regions, satellite constellations have to deal with different communication requirements from different regions. The traffic requirements become ...

An eecient template for the implementation on distributed-memory multiprocessors of iterated parallel loops, i.e. parallel loops nested in a sequential loop, is presented. The template is explicitly designed to smooth unbalanced processor workloads deriving from loops whose iterations are characterized by highly varying execution times. Experiments conducted shows performance gains w.r.t. HPF-l...

Network parameters are vital ingredients of today’s data communication scenario especially Media access delay, Throughput and CPU utilization. This Paper has taken into consideration the modeling and implementation of Wireless Local Area Network (WLAN) based on OPNET simulator and evaluated the performance of the wireless local area network in a campus/university environment. Our model has been...