| Title |
Single Phase NPC Module - Development of 75KVA Single Phase Smart Transformer with 3 Serial Cascade Configuration |
| Authors |
Ju-Young Park ; Gedeon Niyitegeka ; Kyeong-Sig Cho ; Myung-Yong Kim ; Ga-Woo Park |
| DOI |
https://doi.org/10.6113/TKPE/2017.22.2.118 |
| Keywords |
NPC converter ; Cascade converter ; Dual active bridge ; Voltage balancing ; Start transformer ; Electric train |
| Abstract |
In this paper, we propose a smart transformer for a smart transformer miniature model, which can replace a 60 [Hz] single-phase transformer installed in an electric vehicle. The proposed smart transformer is lighter than a conventional transformer, can control instantaneous voltage, and can be expected to improve power quality through harmonic compensation. The proposed intelligent transformer consists of an incoming part, an AC/DC converter, and a dual active bridge. Only the incoming part and the AC/DC converter are described in this paper. The proposed intelligent transformer has 75 kVA 3.3 kV input and 750 V DC output, which are verified by simulation and experiment. |