PROJECT TITLE :

Enhanced Virtual Synchronous Generator Control for Parallel Inverters in Microgrids - 2016

ABSTRACT:

Virtual synchronous generator (VSG) management is a promising communication-less control method in an exceedingly microgrid for its inertia support feature. However, active power oscillation and improper transient active power sharing are observed when basic VSG management is applied. Moreover, the problem of reactive power sharing error, inherited from standard droop management, should additionally be addressed to obtain fascinating stable state performance. In this paper, an enhanced VSG management is proposed, with that oscillation damping and proper transient active power sharing are achieved by adjusting the virtual stator reactance based on state-area analyses. Furthermore, communication-less correct reactive power sharing is achieved primarily based on inversed voltage droop management feature (V-Q droop management) and common ac bus voltage estimation. Simulation and experimental results verify the development introduced by the proposed enhanced VSG control strategy.