Research on Improving Transient Stability of Power System with Distributed BESS and its Coordinated Control Method

The feasibility of battery energy storage system (BESS) in ameliorating power transient stability has been proved. However, the required BESS capacity is large, which leads to high price. Meanwhile, improving effect significantly affected by fault location and location. To address problem, a distributed configuration BESS, with coordinated control method, proposed this paper. Firstly, an independent double-closed loop decoupling controller designed for each so that unit can realize decentralized according its local correlation information. Secondly, particle swarm optimization applied optimize parameters controllers achieve control. Simulation results show optimized better coordinate other, improved.