| Title |
Study on the Parallel Operation of Active Balancer for Unbalanced Load in AC Electric Railway System |
| Authors |
김현우(Hyun-Woo Kim) ; 고유란(Yu-Ran Go) ; 민명환(Myung-Hwan Min) ; 안태풍(Tae-Pung An) ; 이태훈(Tae-Hoon Lee) |
| DOI |
https://doi.org/10.5370/KIEE.2019.68.11.1489 |
| Keywords |
AC Electric Railway; Active Balancer; Parallel inverter; Unbalanced Load |
| Abstract |
This paper analyzes an active balancer with parallel structure which can solve the unbalance problem of Scott transformer secondary side load. First, the structure and function of the proposed active balancer system are explained and the inverter hardware design and control algorithm applied to the active balancer are presented. In addition, the interleaving technique applied to the parallel balancer is described. In order to verify the effects of active and reactive power compensation and the interleaving technique, 8 MVA active balancer is designed and confirmed through PSIM simulation. |