This paper aims to present and compare two techniques used smooth the injected power in grid from a doubly-fed induction generator (DFIG) based conversion system. The first technique on an inertial storage system while second is founded limiting captured by wind turbine. overall composed of energy (WECS) allowing convert into electric power. It controlled converters, side converter rotor conver...

The Sliding mode control theory is applied to a sinusoidal output voltage boost inverter with linear load. The boost inverter is intended to be used in UPS design, whenever an AC voltage larger than the DC link voltage is needed, with no need of a second power conversion stage. Operation, control strategy, simulation and experimental results are'included in this paper.

banded ultra-violet solar radiation, the high-rise solar tower to updraft the heated air to the atmosphere, and in between the power conversion unit, where a system of coupled turbines and generators transforms the stream of heated air into electric power. A good efficiency of the power plant can only be reached with extra-large dimensions of the tower and/or the collector area. The paper prese...

Some comparative studies of several nonlinear control techniques applied to dc-dc power converters are developed in this paper, like for instance the Immersion & Invariance, Passivity-Based Control, Feedback Linearization and the Sliding-Mode Control. All these different control strategies are used to drive dc-dc power converters in a dc microgrid. The load, modeled as a Constant Power Load typ...

Inertial energy scavengers are self-contained devices which generate power from ambient motion, by electrically damping the internal motion of a suspended proof mass. There are significant challenges in converting the power generated from such devices to useable form, particularly in micro-engineered variants. This paper presents approaches to this power conversion requirement, with emphasis on...

We present measurements of second-harmonic generation in interband transitions of InxGa12xN/GaN multiple quantum well samples. The second-order susceptibility x (2) is studied as a function of pump wavelength and quantum well width. For the narrowest wells, we obtain x (2) 51.360.4310 m/V, which is an order of magnitude larger than the intrinsic value for bulk GaN. The corresponding power conve...

Grid connected power conversion is an absolutely critical component of many established and developing industries, such as information technology, telecommunications, renewable power generation (e.g. photovoltaic and wind), even down to consumer electronics. There is an ever present demand to reduce the volume and cost, while increasing converter efficiency and performance. Reducing the losses ...

During the 1980s, electronic power conversion became commonplace in industrial, commercial, and institutional networks. These new loads, known as power converters, impact all electrical networks, usually in a negative manner. Power converters tend to be disruptive to the utility network and sometimes to other consumers. When power electronic loads are present, attempts to correct power factor i...

The purpose of the radiometer project was to research and demonstrate the working principles of a radiometer system. The radiometer design team was composed of five members, each contributing a specific component to the final system. A radiometer system is a device that detects microwave emissions from noise producing objects [1]. These noise sources are typically objects that emit heat and the...

Power electronics, as defined by Thomas G. Wilson, is:" The technology associated with the efficient conversion, control and conditioning of electric power by static means from its available input form into the desired electrical output form." The goal of power electronics is to realize power conversion from an electrical source to an electrical load in a highly efficient, highly reliable and c...