An Adaptive Frequency Strategy for Variable Speed Wind Turbines: Application to High Wind Integration Into Power Systems

Autor: Ana Fernández-Guillamón, Jorge Villena-Lapaz, Antonio Vigueras-Rodríguez, Tania García-Sánchez, Ángel Molina-García
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Energies, Vol 11, Iss 6, p 1436 (2018)
Druh dokumentu: article
ISSN: 1996-1073
DOI: 10.3390/en11061436
Popis: This paper presents a new frequency controller for variable speed wind turbines connected to the grid under power imbalance conditions. It is based on the fast power reserve emulation technique, having two different operation modes: overproduction and recovery mode. In the first mode, the active power provided by wind turbines is set over the mechanical power, reducing their rotational speed. This overproduction power is estimated according to the frequency excursion. In the second mode, the active power is established under the mechanical power to recover the initial rotational speed through a smooth trajectory. The power system considered for simulation purposes includes thermal, hydro-power and wind-power plants. The controller proposed has been evaluated under different mix-generation scenarios implemented in Matlab/Simulink. Extensive results and comparison to previous proposals are also included in the paper.
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