Listar por autoría "b2373baf-b650-4e76-9be4-98177fed4b86"
Mostrando ítems 1-6 de 6
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Detailed study of DFIG-based wind turbines to overcome the most severe grid faults
Rolán Blanco, Alejandro; Pedra Durán, Joaquín; Córcoles López, Felipe Elsevier (2014-11)This paper studies the effects of voltage sags caused by faults on doubly-fed induction generators to overcome grid faults. A wide range of sag duration and depth values is considered. It is observed that sag duration ... -
Parameter estimation of squirrel-cage motors with parasitic torques in the torque-slip curve
Monjo, Lluís; Córcoles López, Felipe; Pedra Durán, Joaquín Institution of Engineering and Technology (2015)This paper studies parasitic torques in steady-state torque-slip curves of squirrel-cage induction motors. The curves of nine motors (small, medium and large size units), three of which were measured in the range s = 2 ... -
Parameter estimation of wound rotor induction motors from transient measurements
Kojooyan-Jafari, Hengameh; Monjo, Lluís; Córcoles López, Felipe; Pedra Durán, Joaquín IEEE Power & Energy Society (2014-06)A new method for determination of the steadystate equivalent circuit parameters of wound rotor induction motors using experimental starting transient measurements is presented. The algorithm data are the stator currents ... -
Reduced-Order Models of Squirrel-Cage Induction Generators for Fixed-Speed Wind Turbines under Unbalanced Grid Conditions
Rolán Blanco, Alejandro; Córcoles López, Felipe; Bogarra, Santiago; Monjo, Lluís; Pedra Durán, Joaquín Institute of Electrical and Electronics Engineers (IEEE) (2016-06)This paper develops a study of reduced-order models for squirrel-cage induction generators (SCIG) used in fixed-speed wind turbines (WTs). The squirrel-cage of these generators must be modeled with a double-cage for ... -
Testing of three-phase equipment under voltage sags
Rolán Blanco, Alejandro; Córcoles López, Felipe; Pedra Durán, Joaquín; Monjo, Lluís; Bogarra, Santiago Institution of Engineering and Technology (IET) (2015-04)This paper provides insight into the testing of three-phase equipment exposed to voltage sags caused by faults. The voltage sag recovers at the fault-current zeros, leading to a `discrete' voltage recovery, that is, the ... -
Using the instantaneous power of a free acceleration test for squirrel-cage motor parameters estimation
Kojooyan-Jafari, Hengameh; Monjo, Lluís; Córcoles López, Felipe; Pedra Durán, Joaquín IEEE Power & Energy Society (2015-09)A new parameters determination method for squirrel-cage induction motors is presented. As a main contribution, the method uses the instantaneous electrical power and the mechanical speed measured in a free acceleration ...