Output synchronization of multi-machine power system using dissipative Hamiltonian realization

Abstract

Interconnected power grid becomes more complex and tends to be vulnerable to unwanted disturbances; thus, transient stability of the power system becomes an important research topic. In this paper, we propose a control law that not only enhances the transient stability but also makes the system to satisfy output synchronization. The key idea of this paper is that the power system can be realized as Port-Controlled Hamiltonian(PCH) model and the model automatically satisfies the passivity with respect to input and output relationship. Using the property, we can analyze the output synchronization by employing consensus algorithm. Through simulation results, we evaluate the synchronization analysis.