Wind generators are exposed to numerous destructive forces such as lightning and are therefore vulnerable to these phenomena. To evaluate the transient behavior of a wind power plant during direct and indirect strikes, modeling of all relevant components is required. Among the protective and control components of wind turbines, the grounding system is the most important element for protection a...

SLAC National Accelerator Laboratory has built and is currently operating a first generation prototype Marx klystron modulator to meet ILC specifications. Under development is a second generation prototype, aimed at improving overall performance, serviceability, and manufacturability as compared to its predecessor. It is designed around 32 cells, each operating at 3.75 kV and correcting for its...

This paper presents the development of a supercapacitor energy storage system (ESS) aimed to minimize weight, which is very important for aerospace applications, whilst integrating smart functionalities like voltage monitoring, equalization, and overvoltage protection cells. The methodology selecting cells type/size detailed achieve safest most energy-dense ESS. Additionally, interface electron...

Due to the extension of power grid with many complex and compact pieces equipment, transformers will be more exposed fast transient, resulting from various resonance conditions. Transformer can result in severe overvoltage on internal parts winding, leading insulation failure and, consequently, transformer outage. The main reasons for occurrence, practical method measure transformers, solution ...

A carbon nanotube [CNT]/Co3O4 composite is introduced as a catalyst for the air electrode of lithium-air [Li/air] batteries. Co3O4 nanoparticles are successfully attached to the sidewall of the CNT by a hydrothermal method. A high discharge capacity and a low overvoltage indicate that the CNT/Co3O4 composite is a very promising catalyst for the air electrode of Li/air batteries.

We present the ferroresonance overvoltage mitigation concerning power systems of grid-connected wind energy conversion (WECSs). WECS is considered based on a doubly-fed induction generator (DFIG). Ferroreso-nance associated with single-pole outage line breaker mitigated by fast regulating reactive using static compensator (STATCOM). STATCOM controller introduced, in which two incorporated propo...

This work is devoted to the calculation of the undulatory parameters and the study of the influence of te number parallel path of a winding on overvoltage compared to the frame and between turns (sections) in a multiturn random winding of an asynchronous motors supplied with PWMconverters. Keywords—Asynchronous Motors, Parallel path, PWMconverters, Undulatory process, Undulatory parameters, Und...

With increased electrical energy demands projected in the future, development of a hybrid solar photovoltaic (PV)–battery storage system is considered good option. However, since such systems are normally installed outdoors and open areas, they vulnerable to lightning strikes may suffer from malfunctions or significant damage sensitive components, which result major breakdown loss revenue due e...