In modern power system, the switching devices are generally used in combination with unbalanced reactive loads which produces current related Power Quality (PQ) problems by making source currents distorted and unbalanced. Usually a STATCOM is installed to support electricity networks that have a poor power factor and often poor voltage regulation. A Distribution Static Compensator (DSTATCOM) op...

Low voltage distribution networks have been originally designed to feed loads. However, recently, small dispersed renewable generators, mainly photovoltaics, are being connected to the low voltage grids. This new operational framework represents a challenge to the planning and operation of distribution networks, since the multidimensional stochastic dependence structure of the joint behaviour o...

To deal with dynamic load balancing in large scale distributed systems, we propose to organize computing resources following a logical peer-to-peer overlay and to distribute the load according to the so-defined overlay. We use a tree as a logical structure connecting distributed nodes and we balance the load according to the size of induced subtrees. We conduct extensive experiments involving u...

Abstract. Parallel application can be divided into tasks that can be executed simultaneously. A mechanism for assigning these tasks to the processors is required. The objective is to minimize the overall execution time of a single application running in parallel on a multicomputer system. We propose a new dynamic load balancing algorithm based on the diffusion approach which employs overlapping...

The development of cloud computing supported virtualization technologies brings enormous opportunities to host virtual resource at low price without owning any infrastructure. Virtualization technologies help users to adopt setup and be charged on pay-per-use basis. However, Cloud data centers largely comprise heterogeneous servers hosting multiple virtual machines (VMs) with potential varied s...

In IEEE 802.11 networks composed by multiple APs, before a station can access the network it needs to make a decision about which AP to associate with. Usually, legacy 802.11 stations use no more than the signal strength of the frames received from each AP to support their decision. This can lead to an unbalanced distribution of stations among the APs, causing performance and unfairness problem...

Mesh adapt(on is a powerful tool for efficient unstructured-grid computations but causes load imbalance among processors on a parallel machine. A dynamic load balancing method is presented that balances the workload across all processors with a global view. After each parallel tetrahedral mesh adapt(on, the method first determines if the new mesh is sufficiently unbalanced to warrant a repartit...

This paper reports the performance of a speed sensorless stand-alone Variable Speed Constant Frequency (VSCF) Doubly Fed Induction Generator (DFIG) capable of supplying all types of loads. The proposed method maintains the Total Harmonic Distortion (THD) of the machine current and the load voltage within acceptable limits. In contrast to previously proposed methods, in this paper, the stator si...

This paper presents a new design method of balance weights with phase angles for scroll compressors. Based on force and moment balances on crankshaft and compressor frame, mathematical formulation of shaft bearing loads, unbalanced force and moment acting on the frame has been made in terms of balance weight design parameters such as masses and phase angles of the upper and lower balance weight...

Unbalanced load condition is one of the major issues all commercial, industrial and residential sectors. means that, when different loads are distributed on a three-phase four-wire system, unequal currents pass through three phases. Due to it, heavy current flows in neutral wire, which not only adds losses, but also puts constraints phases’ loads. In this paper, we have presented practical appr...