LQR control applied to a novel track switch actuator

Kaijuka Precious, Roger Dixon, Ward Christopher, Saikat Dutta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


Existing railway track switches use open-loop actuation to enable trains to take different routes. A new type of railway track switch called REPOINT with a different electromechanical design to conventional track switches has been developed at Loughborough University that requires closed-loop control in order to perform its track switching function. This abstract proposes the use of a Linear Quadratic Regulator (LQR) controller to achieve track switch position control applied to the REPOINT switch. The results showed that the LQR controller enables successful switching of this novel railway track switch and satisfies the control requirements of a REPOINT track switch.
Original languageEnglish
Title of host publication2018 UKACC 12th International Conference on Control (CONTROL)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages1
ISBN (Electronic)978-1-5386-2864-5, 978-1-5386-2865-2 (USB)
ISBN (Print)978-1-5090-6411-3 (PoD)
Publication statusPublished - 1 Nov 2018
Event12th UKACC International Conference on Control (Control 2018) - Sheffield, United Kingdom
Duration: 5 Sept 20187 Sept 2018


Conference12th UKACC International Conference on Control (Control 2018)
Country/TerritoryUnited Kingdom


  • Switches
  • Tracking
  • Rail transportation
  • Position control
  • Mathematical model
  • Actuators


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