Dynamic modeling of a microgrid using smart grid technologies

In this paper a dynamic equivalent model of a microgrid based on Prony analysis is presented. The model parameters are considered to be derived from measurements using parameter estimation techniques. Fourier analysis is also used to study the frequencies involved in the transient response of the system. A microgrid with synchronous generators and inverter-interfaced units is studied and the effect of increased inverter penetration is also examined. Results for various transient disturbances such as changes in the synchronous generators torque, load changes and changes in the inverters setpoints are presented.