Simulation model for a wind power plant as well as production and use

A method for creating a software simulation model for a wind turbine for integration into a power grid simulation model for a simulation of the wind energy systems in the network, software simulation model, the simulation of a power supply network, and associated computer program product, data carriers, data stream. The preparation method includes at least one definition step in which a model element having at least two model element-input variables and at least one model element output variable is defined in a system model of the wind turbine, at least, and an adjusting step, to be adapted in the model parameter of an emulation system so that the emulation system behavior can emulate the model element having a predetermined accuracy. The software simulation model contains at least one model element with model element transfer function between at least two inputs and at least one output variable, wherein said at least one model element preferably as an emulation system an adjusted by means of model parameters fuzzy inference system to emulate the model element transfer function.