Power quality is one of the major concerns and emerging issues in the present era. With increasing quantities of non-linear loads being added to electrical systems, it has become necessary to investigate the power quality issues as all electrical devices are prone to failure when exposed to one or more power quality problems. This paper highlights comprehensive review of the power quality probl...

In power supply networks, the quality of the voltage is becoming more and more of a determining factor. Non-linear loads such as diode or thyristor converters contribute to the degradation of the supply voltage quality. Non-sinusoidal currents of the non-linear loads result in the distortion of the supply voltage wave form at the point of common coupling due to the finite supply impedance. To i...

The selection of control strategy depends on the converters of the drive including power, speed, performance and the possible system costs. A number of attempts were therefore made in recent times to develop novel power electronic converter structures for SRM drives, based on the utilization. Many of the converters with variable speed drives have no input power factor correction circuits. This ...

The issue of power quality in an isolated power system is investigated. The use of series compensator (SC) is proposed, not only to mitigate the effect of voltage sag/swell, but also to reduce the distortions due to the presence of non-linear loads in the network. A method of harmonics compensation is described. In the process of the compensation, it is shown that the SC will exchange energy wi...

In recent years, ad hoc networking is experiencing the transition process from being an academic research topic, lab implementation to realistic industrial applications. Ad hoc networks could facilitate the provision of broadband services in rural and mountain regions. Thereby, challenging the existing digital divide. Furthermore, ad hoc networking could unveil the affordable and necessary infr...

Introduction The increased use of ac and dc motor drives in industrial plants has elevated the power quality application considerations associated with power distribution systems. These considerations have sparked great controversy about the use of drives in industrial applications and have raised questions about their effects on an electrical system. Valuable guide standards, such as IEEE 519-...

This review paper discusses power quality considerations for direct current (DC) electric power distribution systems, particularly DC microgrids. First, four selected sample DC architectures are discussed to provide motivation for the consideration of power quality in DC systems. Second, a brief overview of power quality challenges in conventional alternating current (AC) distribution systems i...

Integration of alternative sources of energy into a network for distributed generation (DG) requires small-scale power generation technologies located close to the loads served. The move toward on-site distributed power generation has been accelerated because of deregulation and restructuring of the utility industry and the feasibility of alternative energy sources. DG technologies can improve ...

Power quality problem causes a misoperation or failure of end user equipments. Distribution network, sensitive industrial loads and critical commercial operations suffer from outages and service interruptions which can cost financial losses to both utility and consumers. In India the use of electronic loads is increasing very fast and the gap between demand and the supply have made the reliabil...

A combination of series, parallel and multilevel power electronics has been investigated as a potential interface for two different types of renewable energy sources and in order to reach higher power levels. Renewable energy sources are typically dispersed in a territory, and sources, like wind and solar, allow small to medium-scale generation of electricity. The configuration investigated in ...