2.2. State space representation of a graphBased on a similar concept to dynamical systems we can see theprevious graph (and hence the microgrid) as a dynamical system (Point3). To define any dynamical system we need to have: (a) the set of itspossible states (state space - S) and (b) an evolution operator (φ) thatwill determine which specific state the system will have at a particularinstant. In this respect the state s (Point 4) at a specific instant of agraph (i.e. of the microgrid) is given by the states of the nodes andedges defined as follows: