Finally, another approach, which will probably dominate in offshore applications, is the multipole synchronous generator connected to the grid through a power electronic converter that handles the full power production. This concept, also called the direct-drive machine, takes advantage of the wide speed range allowed by the full-scale frequency converter. The generator can operate at any rotational speed, allowing operation to track the optimal speed for each wind condition. Among the main advantages of this approach are low maintenance costs and high reliability due to omission of the gearbox, improved aerodynamic efficiency, and the ability to assist grid voltage control.