Grid compliance and power quality comparison of wind plants with different Turbine and Grid Types

In this paper, different grid integration and generators used for wind plants is compared by means of quality of the power generated in plant and impact to the power system. Annual energy production and cost of a given wind plant are basis of the comparison. Technical and economical values of different type wind turbine generators are quantitatively evaluated by providing necessary electrical and cost calculations. In technical examination, grid compliance of a 30 MW wind plant with 13 units of asynchronous geared type turbine is investigated by using power system analysis software as per Turkish Grid Code. Steady state conditions of the wind power plant are evaluated by calculating the reactive power capability, load flow and short circuit analysis at first part of the paper. Secondly, low voltage ride through capability, system frequency and voltage test of the wind park are assessed. Similarly, same plant is considered to be equipped with 3.0 MW direct drive type turbines and technical study repeated with different grid type by means of electrical balance of plant. Finally, levelized cost of electricity calculation is done to observe economic effect of plant parameters in order to obtain maximum wind energy.