Isochronous load sharing and control for inverter-based distributed generation

Abstract

Distributed generation technologies such as photovoltaic, fuel cells and micro turbines are emerging. However, these sources require interfacing units to provide the necessary crossing point to the grid. The cores of these interfacing units are power electronics technologies such as inverters since they are fundamentally multifunctional and can provide not only their principle interfacing function but various utility functions as well. This paper shows the possibility of adapting the isochronous control methodology used by synchronous generators in conventional power systems to provide load sharing and control in inverter-based distributed generation.