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 ...

A dc motor driving an ac alternator was used to simulate an asynchronous wind electric generator. The output was used to drive a commercial air conditioning unit containing a hermetically sealed three ...

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 ...