Effectiveness of smoothing filters in the substations of 3kV DC railway traction - measurements and diagnostics
Abstract
Electric energy quality criteria relating to a DC supply system concerns the circuits from the rectifiers installed in traction substations till the vehicle's current collector. Energy Law and related implementing provisions unequivocally state that an electrified transport system as the energy recipient shall fulfil the requirements regarding energy consumption, which are defined in the agreement. It imposes certain requirements for the Department of Electrical Power Rail. Introduction into traffic of the traction vehicles that are equipped with converter power electronics drive systems increased requirements regarding voltage quality in a DC traction network. At the same time, increase in share of non-linear recipients cause the increase of disturbances in voltage supplying traction substations, and they transfer also to the DC side. Both these factors caused a change in operational conditions of the resonance smoothing filters hitherto used in rectifier traction substations supplied by average voltage. This paper presents a case study of the problem of effectiveness of functioning of the hitherto used filters, from measurements allowing for problem identification to results of the studies of the proposed new solution of an aperiodic filter and the results of exploitation observed with the use of digital monitoring and diagnostics system.
Event details
- Event
- TC10 Workshop on Technical Diagnostics 2014
- Technical Committee
- TC10
- Place
- Warsaw, POLAND
- Time
- 26 June 2014 - 27 June 2014
- Website
- http://imekotc10-2014.org/