Network allocation of BESS with voltage support capability for improving the stability of power systems

Abstract

© 2019 Institution of Engineering and Technology. All rights reserved.The stability of future power systems will be challenged by high shares of converter-based generation technologies (CBGTs). To prevent instability problems, it is essential to explore new technologies and control strategies able to counteract the negative effects that CBGTs may have. In this regard, promising technologies are battery energy storage systems (BESSs), which can provide a wide range of benefits from a stability viewpoint. Current methodologies that quantify and allocate BESSs in electrical networks have been developed from an economic perspective considering a steady-state formulation of the system. Accordingly, these allocation approaches do not exploit all the benefits that BESSs can offer to system stability. This study proposes a novel optimisation methodology for efficient BESS allocation in systems with high levels of CBGTs. The model improves system stability by considering BESSs with voltage supp