Evaluating UWB for Wireless Clock Synchronization of an IEC 61850 Stand Alone Merging Unit

Article Engineering, Electrical & Electronic

Resilient Time Synchronization Opportunistically Exploiting UWB RTLS Infrastructure

Paolo Ferrari et al.

Summary: This paper introduces UWB-based solutions for real-time localizations, achieving indoor positioning accuracy below 10 cm using the TWR scheme. It proposes an opportunistic approach to transparently obtain multiple accurate time synchronizations from low-cost infrastructure. Experimental characterization shows the feasibility of using Decawave's UWB modules for this purpose.

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT (2022)

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Article Engineering, Electrical & Electronic

Phasor Measurement Unit With Digital Inputs: Synchronization and Interoperability Issues

Marco Agustoni et al.

Summary: In recent years, electrical substations have been transitioning toward a fully digital measurement infrastructure, using the IEC Std 61850-9-2 defined sampled value (SV) data format. This article presents the design and development of a stand-alone PMU based on digital inputs, which has been characterized in terms of estimation accuracy and enriched with a new functionality to monitor the time quality of the SV data stream. The results confirm the potential of SV-based PMUs and suggest further enhancement for synchrophasor measurements based on digital inputs only.

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT (2022)

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Article Engineering, Electrical & Electronic

Integrating Signals With High Sampling Rates for Transmission Line Protection in Digital Substations

Fabian Hohn et al.

Summary: This paper proposes a distributed signal processing approach that allocates filtering operations to standalone merging units to integrate high sampling rate signals at the process level. A decimation filter design is presented to provide signal sequences with high, medium, and low sampling rates according to the requirements of the protection function.

IEEE TRANSACTIONS ON POWER DELIVERY (2021)

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Proceedings Paper Engineering, Electrical & Electronic

Measurement of Synchrophasors with Stand Alone Merging Units: a Preliminary Study

Paolo Castello et al.

Summary: This paper discusses the impact of the rapid development of substation automation and the trend towards digitalization on measurement equipment in power systems. It explores the importance of all-digital Phasor Measurement Units and the necessity of ensuring measurement accuracy.

2021 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC 2021) (2021)

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Proceedings Paper Engineering, Electrical & Electronic

Phasor Measurement Unit and Sampled Values: Measurement and Implementation Challenges

Guglielmo Frigo et al.

Summary: The paper presents the design and development of a stand-alone PMU based on digital inputs for use as a reference instrument in the metrological characterization of IEDs. Results show the potential of SV-based PMUs but also reveal some implementation bottlenecks.

2021 IEEE 11TH INTERNATIONAL WORKSHOP ON APPLIED MEASUREMENTS FOR POWER SYSTEMS (AMPS) (2021)

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Article Acoustics