MODELING AND OPTIMIZATION OF MULTI-ENERGY SYSTEMS
The article describes the issues of modeling and optimization of multienergy systems. The description of the multienergy system is performed using a graph that includes two subgraphs for the electric and heat networks. The nodes of the system can be consumers, generators (including renewable ones) and storage devices of electric and thermal energy. A mathematical model of the system is presented, including a model of an AC electrical network, as well as hydraulic and thermal models of a heat supply network. The problem of determining the optimal operating mode of a multienergy system is formulated in the form of a nonlinear programming problem with pseudodynamical dependencies.