Preliminary Analysis of Wind Parameters at the Planned Construction Sites of Wind Generators

To choose optimal place for wind turbine, you need to know two basic parameters:

– the average wind throughout the year (or during the season when more electricity is needed). The total amount of kilowatt hours of electricity you will get, depends on this parameter. V _average

– the maximum possible dangerous gust of wind during a storm. The required strength depends on this parameter and hence the cost of construction. V _max

In order to evaluate the place itself, it is possible to combine these two parameters to only one physical parameter:– the average wind speed which is devaluated by hurricanes. V _Bojat

In this article, it is called: “Bojatspeed”:. V Bojat = V average 3 V max 2 \[{{V}_{\text{Bojat}}}=\frac{V_{\text{average}}^{3}}{V_{\max }^{2}}\]

Measurements formust be done for at least a year, but forfor at least ten years. They are obligatory before any decision about construction of wind turbine. And not generally in the country, but exactly in the particular place. A system of two devices for such measurements is described in this article: anemometer and brazmometer. Both are made in Latvia. They are purely mechanical and include no electronics – that is why they do not require battery or any service during many years. V V _{average max}