FACTS in Voltage Profile Improvement of open-loop Traction system

This paper deals with voltage profile improvement in railway traction system and it describes a concept of static variable compensator which is a fact device. Static variable compensator is composed of TSC and TCR [9]. Locomotives on railway track is powered from substation and Substation is cap able of delivering power to only fix number of locomotives. When any locomotive is moving in particular range of substation, at that time a substation is capable to operate particular number of locomotives only. When number of locomotives increase in substation there may be a reduction in voltage profile of power delivered to the locomotive motors due to load on substation. Harmonics may generate and this may cause tripping of circuit breaker without any fault. A concept of Static variable compensator overcomes this low voltage profile problem. Keyword: - facts devices, static variable compensator, fault analysis, harmonic reduction, traction system.