Research and Development of a Large-Scale Axial-Flux Generator for Hydrokinetic Power System

Featured Application A developed large-scale axial-flux generator is used for electricity generation at a run-of-river hydrokinetic power system. The system is to be used in a river with a high volumetric flow rate in Asia.Abstract The study demonstrates an application of actual technologies and tools for the development of an axial-flux electricity generator. The specifics of its application-a run-of-river sited power station-predefine some of the design parameters that are close to a wind turbine generator. An extensive study of available solutions is used as a starting point for further concept development. The study aims to provide a viable solution for a large-scale electrical machine. A step-based methodology is defined for concept parameters' assessment and a feasibility study. It demonstrates the advantages of virtual prototyping when assessing various design parameters such as air gaps, coil thickness, and the number of rotor disks. Several simulations over different virtual prototypes provide sufficient information to elaborate an improved design concept. The major result is a ready-for-detailed design concept, with defined major parameters and studied work behavior for a specific, large structure of an electrical machine. Another important result is the presentation of the application of virtual prototyping in the assessment of large structures, for which physical prototyping is an expensive and time-consuming approach. The application of virtual prototyping at a very early product development stage is an effective way to undertake efficient solutions involving the concept of the product.