Virtual Synchronous Generator Control of Power System including Large-scale Wind Farm by Cooperative Operation between Battery and LFC Hydro Power Plant

Abstract

Penetration level of large-scale wind farm into the existing power system has been increasing significantly, which impacts on the transient stability during a network fault. This is because wind farm can be disconnected from the grid according to a grid code of the system when instantaneous voltage drop due to a network fault occurrs in the grid system. This paper proposes a new method to stabilize the system frequency drop and enhance the transient stability of the grid system by using a battery which is based on the new virtual synchronous generator control performed by the cooperative operation between the battery and LFC hydro power plant.