HVDC transmission systems are becoming increasingly popular when compared to conventional AC transmission methods. HVDC voltage source converters (VSC) can offer advantages over traditional HVDC current source converter topologies; as such, it is expected that HVDC-VSCs will be further exploited with the growth of HVDC transmission. This paper presents the DC fault ride through capability and n...

The automotive industry is constantly looking for ways of improving vehicles fuel economy, reliability, and reducing cost of manufacturing and maintenance. As a result, vehicle manufacturers have looked into power line communication (PLC) technology as a possible solution. However the nature of a vehicles power lines such as extremely low impedances, time varying channel characteristics, and no...

Single-Stage transformerless AC/DC converter received much attention in the universal line application. Unlike the existing converters a new high step-down transformerless single-stage single-switch AC/DC converter is proposed. The topology integrates a buck-buck-boost converter with low intermediate bus and output voltage. The converter utilizes a buck converter as a PFC cell and buck-boost co...

In this paper, we propose a new discrete-continuous codification of the Chu–Beasley genetic algorithm to address optimal placement and sizing problem distribution static compensators (D-STATCOM) in electrical grids. The discrete part determines nodes where D-STATCOM will be installed. continuous regulates their sizes. objective function considered study is minimization annual operative costs re...

Voltage sag is one of the most severe power quality disturbances to be dealt with by industrial sector, as it can cause process disruptions and results in substantial economic loss. A short-term decreasein voltage lasting anywhere from milliseconds up a few seconds called sag. At present, wide range very flexible controllers, which capitalize on newly available electronics components, are emerg...

In this paper, the effect of a static synchronous compensator (STATCOM) influence on the frequency of islanded microgrids based on frequency control using fuzzy cooperative control is investigated. To achieve fast frequency control, instantaneous power balance between generation and consumption is inevitable, and it can be supplied through energy storage systems such as battery with a proper fr...

Using the FACTS controllers, such as static synchronous compensator (STATCOM), as it provides continuous reactive power, in the grid including wind turbine (WT) equipped with doubly fed induction generator, for improving voltage profile (under normal circumstances) and providing a transition ability from inductor generator transition state has been proposed. In this paper, in order to contr...

Transformerless single-phase inverters are preferring in residential grid-connected PV systems when compared to galvanic-isolated ones (i.e., transformer-based inverters). In addition the special leakage current issue, high efficiency, power quality and reactive injection of concern that should be considered applications. Nowadays, fast development wide-bandgap (WBG) devices brings new challeng...