Optimization of distributed cogeneration systems

Distributed energy technologies are playing an increasingly important role in the world's energy portfolio. Different distributed generation (DG) units can built up a virtual power plant including renewable resources and cogeneration systems. The combined heat and power (CHP) technologies use the primary fuel with high efficiency. In order to integrate CHP systems into Smart Grids a mixed control strategy is needed combining both heat and power operated solutions. Based on a forecast of the power and heat demand the operation schedule of the DG system is calculated by an optimization tool. The paper describes the integration of small residential cogeneration systems into Smart Grids. The optimization of a virtual power plant containing three pilot plants is presented.