Improving power system transient stability by battery swapping station
ZHEN Hao-qing1，WANG Jian-quan1，YANG Chao-yang2，XV Guo-jun2，HAN Yong-qiang2，XV Hui-ping2，YAO Hai-yan2
（1. College of Electrical Engineering，Zhejiang University，Hangzhou 310027，China；2. Yuhang Power Supply Bureau of Zhejiang Electric Power Corporation，Hangzhou 311100，China）
Abstract：Aiming at the problems of extensive impacts brought by large-scale integration of battery swapping station（BSS）into powersystem on power system operation，a transient model of BSS was proposed to study on its impact on power system transient stability. Thesimple model was considered and through the theory analysis，it was drawn the conclusion that power system transient stability can beimproved by controlling the output of BSS. Then by referencing to the methods used in controlling other power system energy storage
components，a power exchange model on BSS was built by user-defined modules in power system analysis software package（PSASP）.Simulations and calculations were carried out with the New England system as an example. The results indicate that the effect of BSS inimproving power system transient stability is verified through the model，and the comparative analysis on the effects of BSS installed indifferent sites which is available for reference is given.
Key words：electric vehicles（EVs）；battery swapping station（BSS）；transient stability；user-defined module