Enhanced operating scheme of ESS for DC transit system

Kwon K., Lee K., Kim T., Lee J., Jone B., Choi J., ...More

17th IEEE International Power Electronics and Motion Control Conference, PEMC 2016, Varna, Bulgaria, 25 - 28 September 2016, pp.1113-1118 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/epepemc.2016.7752150
  • City: Varna
  • Country: Bulgaria
  • Page Numbers: pp.1113-1118
  • Keywords: advanced line voltage tracker, DC transit system, Energy storage system, ESS supercapacitors, line voltage tracker, supercapacitor voltage tracker
  • Istanbul Gelisim University Affiliated: No

Abstract

© 2016 IEEE.The energy storage system (ESS) used in the DC feeding urban railway system is an equipment that recycles the regenerated energy produced by the railway vehicles as well stabilizing the catenary voltage. This paper proposes an operation algorithm of ESS that allows a more effective use of the equipment. The proposed algorithm includes an advanced line voltage tracker (ALVT), which responds to the fluctuating catenary voltage by tracking it and the supercapacitor voltage tracker (SCVT), which modifies the operating voltage of the supercapacitors to increase the receptivity of power constrained by the rated current of supercapacitors. The feasibility of this algorithm has been tested and verified at the Seocho substation in Seoul Metropolitan Rapid Transit (SMRT) Line.