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

Ana Fernández-Guillamón, Jorge Villena-Lapaz, Antonio Vigueras-Rodríguez, Tania García-Sánchez and Ángel Molina-García
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Ana Fernández-Guillamón: Department of Electrical Engineering, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain
Jorge Villena-Lapaz: Alberta Electric System Operator, Calgary, AB T2P 0L4, Canada
Antonio Vigueras-Rodríguez: Department of Civil Engineering, Universidad Politécnica de Cartagena, 30203 Cartagena, Spain
Tania García-Sánchez: Department of Electrical Engineering, Universidad Politécnica de Valencia, 46022 Valencia, Spain
Ángel Molina-García: Department of Electrical Engineering, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain

Energies, 2018, vol. 11, issue 6, 1-21

Abstract: 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.

Keywords: frequency control; wind energy; renewable energy sources integration; power system stability (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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