Implementation of primary frequency regulation on fully rated wind turbine generators

摘要

The increased integration of wind generation via high power converters imposses numerous gauntlet to the management and control of modern power systems. One of them is caused by the decoupling effect between the power sources from the AC grid. It negatively impacts the system frequency response of modern power systems. This paper proposes a controller to enable the primary frequency regulation on fully rated wind turbine generators. The proposed controller is designed to enable primary frequency response mimiquing the classical syncrhonous generator controles. It includes a droop control and an other to enable the inertia response. Simulations on a test system are used to examine the frequency response provided by the prioposed strategy. The most important contributions of this paper is to demonstrate there is an actual limit value of the synthetic inertia gain that can be used in the controllers and that it is dependent on the system frequency noise.