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Abstract-- The experiments were performed in order to<br />

evaluate the relevance of the existing meteorological data for<br />

the assessment of the wind potential of Serbia.<br />

The wind potential in the northern part of Serbia at the<br />

periphery of sand dunes region Deliblatska peščara was<br />

calculated from the wind velocity measured at 20 m, 30 m,<br />

and 40 m heights above the ground and compared by the wind<br />

data at 10 m height obtained from nearby located metrological<br />

station number 13180 and from wind data collected at the<br />

internet site http://meteo.infospace.ru. The met station data<br />

were used in original form with wind velocity discretisation<br />

0.1 m/s and in rounded-off 1 m/s discretisation form. The<br />

detailed comparison of wind data evolution during March<br />

2005 was made illustrating the validity of the meteorological<br />

station and internet data as compared to more precise wind<br />

mast measurements.<br />

Index Terms— renewable energy sources, wind power,<br />

wind potential of Deliblatska Peščara, WAsP model, wind<br />

rose, wind frequency, wind measurement<br />

T<br />

Testing of Internet Wind Data for Regional<br />

Wind Climate Assessment at Deliblatska<br />

Peščara site<br />

I. INTRODUCTION<br />

HE planning of wind potential resources exploitation<br />

usually starts with a rough estimation of wind<br />

availability based on the corresponding wind atlas<br />

estimation. In the absence of the wind atlas of Serbia and<br />

Montenegro we tried to analyze the existing meteorological<br />

data from the met stations to identify the regions suitable<br />

for the wind power exploitation. Several papers were<br />

published by different authors and institutions related to the<br />

regional wind potential but no one publication is suitable<br />

for identifying the all relevant windy regions in Serbia since<br />

several of existing met stations were located at the sites not<br />

exposed to predominant wind [1]-[3]. The study prepared<br />

for the Electrical Company of Serbia is probably the most<br />

valuable one [1]. It contains the wind velocity map of<br />

Serbia obtained by analyzing ten years met data of about 30<br />

met stations.<br />

In this paper we report the results of wind resources<br />

prediction in Deliblatska Peščara, the region in the northern<br />

part of Serbia, which is exposed to predominant southeast<br />

wind košava.<br />

This work has been performed within the EC funded<br />

RISE project (Contract number FP6-<strong>INCO</strong>2-509161).<br />

The author is with Faculty of Electrical Engineering, Belgrade University<br />

Bulevar Kralja Aleksandra 73, 11120 Belgrade, Serbia & Montenegro<br />

ezlatano@etf.bg.ac.yu<br />

Miodrag Zlatanović<br />

II. MET STATION LOCATIONS<br />

The region of South Banat in northern part of Serbia is<br />

known as a windy area with predominant wind from<br />

southeast direction, called Košava, which is especially<br />

present during late autumn, winter and early spring, but is<br />

of lower intensity during summer period. The land is<br />

predominantly flat with few hilly terrains and only one<br />

mountain at the Serbian-Romanian border located at the<br />

east part of the area. The sandy dunes area at the west part<br />

of South Banat region is a Special Nature Reserve –<br />

Deliblatska Peščara - in which the construction of large<br />

wind farms is forbidden by the low.<br />

Fig. 1 contains the map of Serbia with the principal<br />

met station locations from which the synoptic data of<br />

interest for wind resources predictions are available. The<br />

central and southern parts of Serbia include some mountain<br />

regions in which the wind resources prediction is difficult<br />

due to non-convenient locations of the met stations. The<br />

relevant met stations for wind climate assessment in<br />

predominantly flat South Banat are Banatski Karlovac and<br />

Vršac indicated in Fig. 2, but also Veliko Gradište station<br />

located over Danube river may contain very useful data.<br />

Fig. 1. Principal met station locations in Serbia<br />

The wind mast 40 m in height was installed at the<br />

location Humka Nagula nearby village Dolovo (Fig. 2)<br />

while 50 m tall wind tower is to be positioned at the<br />

Zagajičko brdo site. In near future two additional wind<br />

masts with the wind measuring system are planned to be<br />

1

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