Event triggered control of an islanded network of microgrids via hybrid
dynamical systems
Abstract
In this paper a distributed event-triggered control of an islanded
network of microgrids is proposed. Microgrids are connected to their
neighbors from the point of view of energy exchange and data
communication level. The control objective consists of driving the state
of charge of batteries to a desired attractor, managing the connections,
and disconnections of energy transfer. The control design and asymptotic
convergence analysis is based on hybrid dynamical system theory,
considering the state of charge of batteries and powers as
continuous-time variables and the connections and disconnections among
microgrids as discrete-time variables. The stability properties of a
given attractor are guaranteed even when an unintentional
connection/disconnection of any microgrid element occurs or when any
battery is saturated in any of its bounds. This attractor is selected as
a trade-off between reaching a small size of a consensus neighbourhood
among the state of charge of the batteries and reducing the energy
losses associated with the interconnections between microgrids.