/ESR 3
ESR 3 2020-06-18T10:08:37+00:00

ESR 3

Development of tools for accurate and reliable measurements of Smart Grid Power Quality

Smart electrical grids are confronted to challenges raised by the increasing uptake of Renewable Energy Sources (REnS) as well as new loads of electricity such as electric vehicles and mobile electronic devices. Both lead to a complex dynamic operating environment for distribution networks. Distortions coming from these REnS are generally larger and less regular then those due to traditional generation sources and loads, making power quality (PQ) measurements difficult to perform.

In this context, the research contributed to develop a metrology grade calibration platform for the generation of distorted waveforms with supraharmonic components (2 – 150 kHz). These developments are based on field measurements on real smart grids. Thus, the power quality instruments can be characterized under real-grid dynamic conditions.

The activity and the results obtained during the PhD thesis contribute to the determination of those PQ parameters that affect active customers, to the study of the cause-effect relationship between the different parameters, such as the PVIs, residential equipment, etc. in the network; to the development of generation tools for characterizing PQ parameters that propagates through Smart Grids.

Secondments

1st secondment

Électricité de France (EDF) (08.2017 – 10.2017)

2nd secondment

Université de Technologie de Belfort-Montbéliard (UTBM) (03.2018 – 04.2018)

3rd secondment

Swiss Federal Institute of Metrology (METAS) (09.2018 – 11.2018)

Achievements

The main contributions of the ESR03 research activity have been the followings:

  • Answer to the Understanding the underlying faults and causes of the supraharmonic emissions in smart grids by On-field measurements performed according to the design of experience method. Results: Database with supraharmonic emission for both individual equipment and residential network.
  • Answer to the Development of a platform for the generation of complex waveforms by Choising the electronic design and components, development of the algorithms capable of reproducing real-grid like waveforms. Results: LabView and NI cards based complex waveform platform
  • Answer to the Implementation of a metrology-grade platform for the characterization of measuring instruments for PQ parameters under severe conditions by Characterizing the designed platform by means of calibrators and references devices both for generation and acquisition parts. Results: Complete uncertainty budget for the 2 generation channels and the 4 acquisition ones.
  • 4 papers delivered (4 conferences)

In this sense, ESR03 has provided an added value to not only the MEAN4SG project but the field itself via:

  • the establishment of the cause-effect relationship between the different parameters with impact on supraharmonic emissions, such as the high-power photovoltaic inverter, residential equipment, etc. in the network;
  • the 4-channel system for the accurate and reproducible measurement of the voltage and current emissions in the supraharmonic frequency range of 2 to 150 kHz;
  • the design and implementation of the waveform platform for the characterization of the commercial PQ instruments in the supraharmonic frequency range of 2 to 150 kHz;
  • the metrological traceable characterization of the waveform platform with a complete uncertainty budget within the range of ± 1% for all the generation and measurement channels.

Overall, these contributions can be used for the new developments concerning the reliable measurement and characterization of supraharmonic emissions.

Thesis title

Development of tools for accurate and reliable measurements of Smart Grid Power Quality

Publications

  • “Measurement and Analysis of Supraharmonic Emissions in Smart Grids”. Deepak Amaripadath, Robin Roche, Loic Joseph-Auguste, Daniela Istrate, Dominique Fortune, Jean-Pierre Braun, Fei Gao (2019 54th International Universities Power Engineering Conference (UPEC)) [Repository Link: https://hal.archives-ouvertes.fr/hal-02863270]
  • “Design of a versatile waveform platform for supraharmonic testing and calibration”. D. Amaripadath, R. Roche, J.P. Braun, L. Joseph-Auguste, D. Istrate, D. Fortune, F. Gao (CIRED 2019 Conference) [Repository Link: https://hal.archives-ouvertes.fr/hal-02862397]
  • “Measurement of Supraharmonic Emissions (2 – 150 kHz) in Real Grid Scenarios”. D. Amaripadath, R. Roche, L. Joseph-Auguste, D. Istrate, D. Fortune, J.P. Braun, F. Gao (2018 Conference on Precision Electromagnetic Measurements (CPEM 2018)) [Repository Link: https://hal.archives-ouvertes.fr/hal-02863261]
  • “Power quality disturbances on smart grids: Overview and grid measurement configurations”. D. Amaripadath, R. Roche, L. Joseph-Auguste, D. Istrate, D. Fortune, J.P. Braun, F. Gao (2017 52nd International Universities Power Engineering Conference (UPEC)) [Repository Link: https://hal.archives-ouvertes.fr/hal-02131001]
  • “Development of Tools for Accurate Study of Supraharmonic Emissions in Smart Grids”. Deepak Amaripadath (Université Bourgogne Franche-Comté) [Repository Link: https://tel.archives-ouvertes.fr/tel-02498270]

Current position

[To be updated]

PhD

Deepak Amaripadath

Master of Science (Technology) in Electrical Engineering

Supervisor

Dr. Ing. Daniela Istrate

Host Institution

Laboratoire National de Métrologie et d’Essais (LNE)