  This paper proposes coordination laws for optimal energy generation and
distribution in energy network, which is composed of physical flow layer and
cyber communication layer. The physical energy flows through the physical
layer; but all the energies are coordinated to generate and flow by distributed
coordination algorithms on the basis of communication information. First,
distributed energy generation and energy distribution laws are proposed in a
decoupled way without considering the interactive characteristics between the
energy generation and energy distribution. Then, a joint coordination law is
designed in a coupled way taking account of the interactive characteristics.
The coordination laws proposed in this paper are fully distributed in the sense
that they are decided optimally only using relative information among
neighboring nodes. Through numerical simulations, the validity of the proposed
distributed coordination laws is illustrated.
