Fixed speed and variable speed wind generator models for power system dynamics and transient stability analysis were presented. The models are valid for the simulation of system faults and power fluctuations resulting from wind-turbulence. For estimating wind-turbulence in wind farms a stochastic turbulence model was presented considering rotational sampling. tower …

In this paper. a novel fast short circuit current detection technique is proposed for PV inverter based DGs. The proposed short circuit current detector is based on the evaluation of the slope (d dt) and magnitude of the PV inverter current. As soon as it detects a fault that is …

A comprehensive system leveraging mobile and RFID technologies. aggregation middleware and an aggregated charge-scheduling algorithm that effectively schedules charging and V2G operations for cost savings and peak load reduction has been presented. Intelligently scheduled charging yields a cost savings of 7% for enterprise commuters and 10% for drivers with variable …

Qatar has key role in the security of energy supplies for Europe and international markets.

The Kingdom has an advantage in being one of the leading players in the mining sector.

Libyan crude has been seen as an additional alternative to Iranian supplies.

Petrol futures jumped as much as 2.2%. to $2.0021 a gallon. on the New York Mercantile Exchange.

As the demand for “green“ energy increases the offshore wind power industry is expanding at a rapid pace around the world. Design of Foundations for Offshore Wind Turbines is a comprehensive reference which covers the design of foundations for offshore wind turbines. and includes examples and case studies. It provides …

This book presents currently available renewable energy technologies (RETs) and explores their possible integration into the economically viable and green residential microgrids of tomorrow. The emphasis is on the importance of RETs in today’s energy-efficient building designs. and on those RET mathematical models suitable for both performance simulation and economic …

Based on comparative study on different pole-slot number combinations and pole-arc coefficients for the 1.5MW directdriven PM wind generator. the following conclusions can be deduced: 1) The pole-slot number combination has significant effect on the positioning torque at no load. Choosing the fractional slot number per pole and per phase …