| Abstract |
An innovative control scheme of a multirotor wind turbine (MRWT) based on N parallelpermanent magnet synchronous generators connected to a single back-to-back converter ispresented, aiming at an overall cost and weight reduction of the system. This control solutionis based on the MPPT mode of operation, to maximize power extraction when in below ratedwind speed, together with standard vector current control. An inertia emulation controller wasadded to the model to provide primary frequency control to the network. Various simulationswere carried out to validate the model considering five rotors. Furthermore, a comparisonbetween the system behaviour and power extraction is performed against a MRWT withdedicated converters for each generator. Inertia emulation is also reproduced. Low voltage ridethroughwas validated by means of simulations. It was concluded that the clusteringconfiguration is robust and might be a suitable solution for a MRWT. |
