Power Quality in Railway Traction and Compensation by Combining Shunt Hybrid Filter and TCR

Abstract

This paper analyses the quality of electricity in railway traction. Power quality characteristics have been measured as a case study in a traction sub-station in Tamil Nadu, India, where 1400 KVAR capacitor bank is installed. The actual data has been obtained through direct supply of traction load. Harmonics and various power quality problems are generated through the load of current. The emerging power problems need attention to rectify the “polluting” sites. Issues are measured by providing power quality analyzer and compared with IEEE standards 519- 1992. Simulation has been done to improve the power quality issues such as harmonics, power factor and reactive power by using a combination of shunt hybrid filter and Thyrsitor Control Rectifier. © 2016 Taylor and Francis Group, LLC.