Unconventional PM Synchronous Generators for Wind and Wave Integrated Platform Plants

Abstract:
The paper describes a new structure of a wind and wave power plant with two groups of electrical machine: multipole axial flux and linear tubular PM synchronous generators. Both type generators are installed on the common platform extended along an offshore aria. A few important issues are reported including the plant power converter topologies for interconnection between generators and interfacing a grid, identification of generators parameters and aspects of design optimisation problems. Variable speed operation of both type generators avoids the necessity of their output values synchronisation and provides the underwater HVDC electrical energy transmission to a cost power converter substation.