Abstract
Micro grid energy system is consisted of various kind of generator (ex: wind power system that use natural energy, gas engine, storage battery and etc.). These devices are needed to be operated in line for the electricity demand change. Fuel composition also changes in assuming biomass use in the micro grid. So, it is important to understand their transient response properties for designing and managing the micro grid. In this study, transient response characteristics of a small size existent gas engine were investigated in experiment and engine dynamics model was developed. Influence of fuel condition on transient response was also investigated. It was clarified that fuel condition did not affect load following time though thermal efficiency was changed.
