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Lihua Zeng - IEEE Xplore Author Profile

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The main existing mathematical models that describe wind speed frequency distribution were introduced in this paper, and the characteristics and limitations of each model were analyzed. Then, based on the considerations of the actual wind speed frequency distribution features, AR-GARCH model was adopted here in order to fully reflect the randomicity and wave character of the wind speed varied with...Show More
Wake effect is a key factor leading to the efficiency decrease of the whole wind farm. For different configurations of wind turbines, the accurate prediction of wake effect between wind turbines is vital to the calculation of wind farm cost and benefit. To describe the wake effect better in the wind turbine optimization, a new non-linear wake expansion of the wake model was introduced into the cal...Show More
To optimize the placement of wind turbines using a genetic algorithm for the fixed size of wind farm, the appropriate computational grids are the basis of the succeeding work. The optimized scheme was tightly restricted by the rationality and accuracy of computational grids. In this paper, based on the consideration of actual wind and wake characteristics of wind turbines, the (a) shape of the gri...Show More