The research and development of large-scale wind turbine generators have become a future trend in green renewable energy field from the dual perspectives of the environment and economics. In this work, an electrical design method is first proposed and applied to different types of wind turbine generators, including the high-temperature superconducting (HTS), the permanent magnet (PM), and the traditional copper generators. The optimal electrical designs of the three types of 10-MW wind turbine generators are then created based on the developed design program. Second, the influences of the rated revolution on the basic performance parameters of the HTS generator are investigated, and the results are compared with those of the other two types of generators. It is found that the generator weight decreases with the increases of the rated revolution and the stator outer diameter, and the optimal rated revolution for a generator with a large stator outer diameter is determined to be 40 min-1. Moreover, the weight of the field parts is found to have the same regulation rule as the generator weight. Finally, the design results of the three types of wind turbine generators are comparatively discussed, and it is found that the HTS wind turbine generator is superior to its two counterparts.
Main purpose of this paper is to establish a precise mathematical model of solar photovoltaic array in the ship. Firstly analyzed performance parameters of solar PV power generation system in the "COSCO TengFei ship" and gave principle model of PV cell monomer. Then, the practical engineering mathematics model was proposed for PV cell module. The mathematical model of the PV cell array was established. Finally, this paper compared and analyzed the simulation results and the data from ship, drew the conclusion that the accuracy of the simulation model was verified. So this mathematical model can be used to characteristic research that PV power generation system parallel with power station system in the ship, for example maximum power point tracking, active filter, reactive power compensation, etc.
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