Network allocation of BESS for improving rotor angle stability

Abstract

This paper presents a novel methodology for an efficient allocation of Battery Energy Storage Systems (BESS) in order to improve rotor angle stability of power systems. The proposal uses a genetic algorithm (GA) specifically designed to solve the allocation problem. The use of GA enables us to evaluate each candidate using time-domain simulations in a set of critical operating conditions and contingencies. This in turn allows us to obtain an accurate estimation of the impact that different BESS allocations may have in the stability of the system. Results from a network based on the IEEE 39-bus New England System demonstrate the benefits of our proposed methodology in terms of improvements in the rotor angle stability that can be achieved and its practical implementation in real-world power systems.