Design and Simulation of Passive and active filters : A proposed Implementation for East Coast Mainline Railway

This paper examines the use of passive and active filters to deal with harmonics for power system applications and in particular, for railway substations on the East Coast Mainline. Filters were designed and simulated on ETAP and ORCAD to analyze and determine the most effective filters combination for implementation. Ultimately, a recommendation is made for the East Coast Mainline to use these filters to eliminate the present electromagnetic interference caused by the new fleet of Class 800 trains. By using filters to lower harmonics and compliant to the IEEE 519 limits, the new Class 800 trains will be able commissioned into passenger service.