The increasing application of voltage source converter (VSC) based high direct current (VSC-HVDC) technology in power grids has raised the importance incorporating DC and converters into existing transmission network. This poses significant challenges dealing with resulting optimal flow (OPF) problem. In this paper, a recently proposed nonconvex distributed optimization algorithm—Augmented Lagr...

Virtual Software Corporations (VSCs) are a novel organisational form that use the competitive advantage provided by access to scarce competencies and economies of scale in software development. The main feature of a VSC is the distributed and temporary nature of the teams involved and the use of communication and information technology to support its activities. Large-scale software development...

Voltage Source Converter-High Voltage Direct Current (VSC-HVDC) is the most efficient and reliable method for electrical power transmission over long distances. The greatest challenge with VSC-HVDC system is that short-circuit faults damages the converter valves and the transmission network. The fault clearing time for the available DC breakers are not fast enough and reliable to provide adequa...

This paper proposes a vector and linear control strategy for wind turbines connecting to DC collector grid. Two conversion schemes are considered the turbine, (i) an active scheme where dual rotor generator (DRG) is connected voltage source converter (VSC), (ii) passive DRG uncontrolled rectifier. The controller implemented on VSC turbine speed output power controlled via VSC, (WTG) rectified f...

The present study investigates the effect of brain damage on verbal-spatial-cognitive (VSC) and sensorimotor (SM) measures included in the McCarron-Dial System (MDS). The subjects include 141 brain damaged adults and 42 psychiatric controls. The following research questions are addressed: (a) Does the brain damaged group differ significantly from controls? (b) Are there significant differences ...

OBJECTIVES The aim of this study was to determine whether measurements of volatile sulfur compounds (VSCs) are useful to predict colonization of periodontopathic bacteria. For this purpose, we assessed the relationships among distributions of 4 species of periodontopathic bacteria in tongue coating and dental plaque, oral conditions including VSC concentration in mouth air, and smoking habit of...

This paper provides the status of the Vehicle Safety Communications-Applications (VSC-A) research project, which was designed to determine if dedicated short range communications (DSRC) paired with accurate vehicle positioning can improve upon autonomous vehicle-based safety systems or enable new communication-based safety applications. This three-year project is a collaborative effort between ...

Gerilim kaynaklı dönüştürücülere (VSC) dayalı yüksek gerilim-doğru akım (HVDC) güç sistemleri son yıllarda popüler bir konu haline gelmiştir. Bu makale, zayıf AC sistemi için çeşitli sistem hataları ve aşırı yükleme koşulları altında vektör kontrol tekniği ile VSC tabanlı VSC-HVDC sisteminin modelini performansını incelemektedir. matematiksel modeli, parametrelerini en uygun şekilde ayarlamak e...

For the black start-up of DC micro-grids, three-phase charging resistors are required to limit uncontrollable surge current. The main drawback this method is difficulty in determining appropriate resistance value achieve a rapid and current with change grid parameters. To address problem, article proposes soft for micro-grid based on an improved two-level voltage source converter (VSC). Specifi...