sin αst

12
Further development
This chapter defines tasks that that must be completed in order to fully develop the wind
turbine design, but which are beyond the limits and exclusions of the present project the-
sis. The tasks are expected to be carried out as student chapter projects within EWB.
The identified tasks and associated future projects are listed below. Tasks marked with an
(S) are optional spin-off projects that are not mandatory to complete the proposed wind
turbine design.
� 2D drawings
Technical 2D drawings, which enable prototype manufacturing, should be produced. A
sample part drawing of the shaft is enclosed as att. 11.
� Generator
An axial flux permanent magnet generator with the characteristics described in sec-
tion 7.1 should be developed. A generator design tool, similar to the rotor design tool
developed as a part of this project thesis, would of great use in the development proc-
ess and in the creation of future variants. The design tool could use input variables
such as magnet strength, magnet size, wire dimensions, number of coils and number
of windings to output generator performance and efficiency. If the developed genera-
tor deviates from the intended, it may be necessary to initiate a project that trims the
rotor to fit the new generator.
� Electrical system
An electrical system of the wind turbine, with components similar to those described
in section 7.2, should be developed. Emphasis should be placed on selecting compo-
nents that are available in developing countries. It is additionally necessary to comply
with the requirements of IEC 61400-2 with regards to the electrical system in general
and to the protective system.
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