The relationship between the parameters of wind speed

• Autorzy: Halchak V. , Syrotyuk S. , Syrotyuk V.
• Języki publikacji: EN

Abstrakty

EN

This paper analyzes the methods of mapping the velocity of wind flow, and using them to measure the performance of wind turbines. The dependencies of the two-parameter Weibull distribution function on the scale parameter are analyzed. It should be noted that the parameters of the distribution function, and therefore the repeatability are probabilistic. The characteristics of Rayleigh distribution for different values of the scale are presented. The analytical-expressions and peculiar velocities of the integer and half-integer values for the shape parameters reflect the relationship between the mean, mean square, average-cubic, and estimated wind-speeds. It is shown that the ratio of the square of the average speed to the standard, regardless of the values of the shape-parameters and the scale-ratio can be replaced by the corresponding G-functions.The theoretical-calculation to design the medium-speed and its relation to the current and average speeds for the Weibull distribution with a half-integer values and the shape-parameter is presented. It is proved that the recommendation considers the speed of the medium design to be proportional to the mean, and permissible only if the distribution is close to normal. It has been established that the ratio between average wind velocities (in the case of Weilbull distribution parameter) are determined only by its form and the average velocity through the scale parameter. Weibull distribution allows to facilitate and simplify their calculation methodology so as to assess the energy parameters of wind turbines.

Słowa kluczowe

EN

wind; wind speed; distribution function; mean values

• Wydawca: Polish Academy of Sciences, Branch in Lublin
• Czasopismo: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
• Rocznik: 2015
• Tom: Vol. 4, No 4
• Strony: 95--100
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Halchak V.

• Lviv National Agrarian University

autor

Syrotyuk S.

• Lviv National Agrarian University

autor

Syrotyuk V.

• Lviv National Agrarian University

Bibliografia

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