Objectives
1
To provide an overview on possible configurations for non-conventional DC substations (e.g. bidirectional and/or with storage systems) including evaluation of pros and cons.
To perform a survey of real installations focusing on the design characteristics and the expected or declared energy savings.
2
To develop a metrological infrastructure for calibration of high voltage (3 kV) and high current (1000 A) DC transducers and measurement systems under dynamic conditions with typical timescales from a few hundreds of milliseconds to a few seconds.
3
To develop, calibrate and apply on-site setups and algorithms for the measurement of the energy losses of non-conventional AC/DC substations and the charge-discharge efficiency of electric storage systems with an overall on-site target uncertainty of 10 % of losses. The setups allow capturing signals from DC to 20 kHz to perform Power Quality and transient event analysis.
4
To develop, characterize and determine the accuracy of a hybrid method based on the combination of field measurements and models for the determination of the energy saving provided by the upgraded DC supply system in real operating conditions.
5
To contribute to standards development of technical committees CENELEC TC9X, CENELEC TC14 and IEC TC9 aligning project outputs to their needs, with rapid communication including to final users (e.g. DC transportation system operators, manufacturers, designers).