A study of small wind turbine generation system for extreme watheme weather conditions

摘要

This Paper Presents a study of small scall wind powered generation systems combined with solar cell generation unit as a reliable electric power source at the mountainous regions ranging from Himaraya via Tianshan to Mongolia. In these mountainous region, wind is strong in all seasons and almost constantly available. The weather conditions in these regions are extreme; e.g., air density is about 1/3 of sea level value, the lowest temperature is almost -60 degrees centigrade and the wind velocity can reach 100m/s. Since helicopters are not operatable, each part of the generation system must be carefully arranged for transportation and development. In this paper, a hybrid power system combined with the wind powered generator of 150W (max. 500W) output and the solar cell is described. Especially, the design and the wind tunnel test performance of the two bladed propeller type wind turbine are shown in detail. This paper also presents the result of weather exposure test conducted at a site of 2800m elevation with the similar weather condition to the expected deployment points. Effects of weather especially temperature, humidity, atmospheric pressure, snow and icing on the performance of this system are investigated and we confirmed reliable and satisfactory operation of this small, independent power source.