Wind generation system is becoming increasingly important as renewable energy sources due to its advantages such as low maintenance requirement and mainly it does not cause environmental contamination ...

Theoretical and experimental investigations on a self-excited solid iron rotor induction generator are presented in this paper. The prediction of rotor impedence is based on linear theory and the ...

Doubly fed induction generator (DFIG)-based wind energy systems have emerged as a pivotal technology in the generation of renewable power. These systems couple a wind turbine to a DFIG via ...

There is a novel sort of bicycle dynamo that holds a strong magnet loosely in a little box next to the wheel rim. Once the wheel starts to rotate, the magnet’s field starts to interact with the ...

With its increasing use of solar and wind power, Portugal has for many years been focusing on the flexible and dynamic potential of pumped storage to stabilize electricity grids. In the north-west of ...