Coordinated Frequency Control Strategy of BESS integrating high proportion of Wind power plant with a Steam turbine

摘要

Many inverters nowadays have the ability to control the output power from the renewables sources. They all are mainly PI-based controllers and have been proved to provide stable and controllable power to the output. These inverters are known as Synthetic inverters because they provide synthetic inertia to the power system. The main problem arising from implementing the Synthetic inverters is that the renewables cannot always work on MPPT, some power must be reserved that can provide inertia to the system. In many ways, this residual power is wasted during the low demand, which means that cost of electricity would be increased. A new research has been carried out on BESS to provide the synthetic inertia. BESS can emulate the internal response just like conventional power plants (CPP) as well as synthetic inverters. In this paper BESS providing PFR (Primary frequency Response), IR (Inertial Response), and DR (Damping Response) is implemented and its effect on wind and steam turbines are analyzed with simulations.