Hybrid Power System Frequency Control including Wind Farm using Battery Storage System

Abstract

Fixed speed wind turbine-squirrel cage
induction generator (FSWT-SCIG) based wind farm
(WF) is increasing significantly. However, FSWT-SCIG
have no frequency control capability, which creates a
significant problem on power system steady-state
stability. This paper represents a new operational strategy
to control frequency of the entire power system including
large-scale FSWT-SCIG based WF by using battery
storage system (BSS). The proposed cascaded control of
BSS is designed to provide effective amount of real power
during steady-state period to damp frequency
fluctuations. To evaluate the validity of the proposed
system, simulation studies are executed on a reformed
IEEE nine-bus power system with three synchronous
generators (SGs) and SCIG-based WF along with BSS.
The simulation results indicate that the proposed system
can be an effective solution to reduce frequency
fluctuations of the hybrid power system during steady
state condition.