Electromagnetic Torque Transient Control System of a Generic DFIG Wind Turbine Model
2019
Lorenzo Bonache, Alberto | Villena Ruiz, Raquel | Honrubia Escribano, Andrés | Gómez Lázaro, Emilio
The Standard IEC 61400-27-1 intends to cover the current needs of power system operators regarding transient stability analysis of power systems. It provides generic wind turbine models adaptable to any vendor topology and simulation software, simple enough to work under RMS simulation. These models are developed under certain assumptions, trying to strike a balance between simplicity and accuracy. In these terms, depending on the flexibility or stability of the real topology, some behaviors or magnitudes may be dismissed, aiming to decrease the complexity of the model. Nevertheless, this is not the case for IEC Type 3 wind turbine model, which tries to emulate the behavior of magnitudes which are not usually relevant for stakeholders, such as aerodynamic response or electromagnetic torque. This work focuses on the ability of emulating the electromagnetic torque response under voltage dip conditions, illustrating its transient control possibilities in a generic Type 3 wind turbine model. The decrease of this magnitude, due to the voltage drop during the fault, as well as its recovery, can be defined in detail thanks to the complex control model. Hence, this paper may result of interest for those stakeholders involved in the development and adjustment of generic wind turbine models
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