| Title |
Parametric Study for Variable Tap of Autotransformer Neutral in AC Feeding |
| Authors |
한문섭(Moonseob Han) ; 이장무(Chang-Mu Lee) ; 김재원(Jae-Won Kim) ; 창상훈(Sang-Hoon Chang) |
| DOI |
http://doi.org/10.5370/KIEE.2018.67.1.137 |
| Keywords |
AC railway feeding ; Autotransformer ; Variable tap |
| Abstract |
The voltage drop is important in electric railway for feeding a huge power of train on fixed feeding area. Nowadays it is tried to operate a high speed trains on conventional lines and there is problem on the voltage drop too. It is simulated on the conditions increased the turn ratio of trolley, installed autotransformer neutral line with variable taps. In result, it is compensated the voltage drop between ATs and better on last AT, not on the position of AT. And it is decreased a return current and neutral current of AT because of unbalance between trolley and feeder. It should be studied faster and more controllable the solid state switchs instead of the mechanical one in order to utilize this system. |