摘要:AbstractThis paper investigates the interactions among multiple controllers in distribution systems in the presence of distributed generation (DG). Two doubly fed induction generator (DFIG) type wind turbines are connected to a distribution system to investigate their influence in the system. Simulation results indicate that the parallel operation of DG units and their controllers in the same network in a relatively smaller geographical area have negative interactions giving rise to control mode oscillations. It is also investigated that the coupling of the load dynamics with DG-controllers reduces the damping of the system.