Method for the Provision of Negative Tertiary Reserve by Wind Farms
Abstract
Because of the increasing installation of renewable energy sources, the energy system in Germany is changing towards a more decentralized and intermittent power production. Consequently in the future renewable energies will have to take over the provision of ancillary services which is nowadays mainly done by conventional power plants. Frequency control is one important ancillary service. As it is described in many studies . Until now no work has been down concerning the proof of frequency control provision by wind farms. Therefore a concept is presented here (chapter II). Another field of study which received little attention yet is calculating the amount of available frequency control power. Herein we describe a method based on probabilistic forecasts (chapter III). Closing an economic analysis is made for the German negative tertiary control market for three different wind farms and a virtual power plant consisting of theses wind farms (chapter IV).