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Digital-IT Beyond the state of the art

Reference systems for calibration of SV enabled equipment

The project will extend traceable calibration services to higher sampling rates (14.4 kSPS and 96 kSPS) and to equipment working on the PTP timing protocol, as required by new standards. Calibration services will be developed and implemented at metrology beneficiaries that have so far been unable to calibrate digital instrument transformers or SAMUs.

Control and analysis software solutions for handling of SV streams

The project develops new data processing schemes and algorithms to accurately characterise amplitudes, phases, and power quality-related parameters with complete system-wide uncertainty estimation, thus providing a solid basis for traceable calibrations. All the software will be collected and documented in a reference software package. This enable NMIs and calibration laboratories to better meet end user needs in their transition to digital substations.

Communication and timing networks for transmitting SV data & PTP-based timing 

The PTP timing protocol has replaced the 1PPS timing in the new versions of related standards. Therefore, this project will develop best practices for the calibration of PTP slave device timing. As the PTP timing quality will ultimately depend on all networking components relaying timing packets, the project’s focus will not only be on slave devices, but also on master clocks and network switches.

Coordinator

Jari Hällström, VTT