Abstract: The optimized type selection of wind power unit influences on the income from investment of wind farm significantly. Using the neural network model to estimate its total investment, and carrying out the economical and technical comparison on various kinds of units by using the wind farm life cycle costbenefit model, the optimized unit type selection can be realized. Taking the unit type selection of a wind farm as an example, the optimized method was analyzed and demonstrated, the result shows that the method is feasible and has theoretical and practical values.

Key words: wind power, optimized type selection of unit, cost-benefit model, neural network model, investment estimation