Metrology support for enhanced energy efficiency in DC transportation systems

This paper describes a new EU-co-funded project on metrology support for enhanced energy efficiency in DC transportation systems (e-TRENY). The project involves 5 national metrology institutes, 3 universities, 1 metro operator, and 1 consulting group. Research focuses on the following topics: i) new calibration facilities for DC transducers (up to 3 kV, 1 kA) under dynamic conditions, ii) accurate on-site losses of the converter group (power transformer – AC/DC bidirectional converter, DC/DC converter) operating in DC substations, iii) energy saving performance of transportation systems with non-conventional DC substations.