Scientific direction Development of key enabling technologies
Transfer of knowledge to industry

PhD : selection by topics

Technological challenges >> Smart Energy grids
2 proposition(s).

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Advanced control of inverters for stability of microgrid with high rate integration of renewable energy

Département des Technologies Solaires (LITEN)

Laboratoire d'Intégration Energétique Locale et Autoconsommation



Smart Energy grids (.pdf)

Energy transition policy, decreasing renewables energy production cost and continuous advancing of technology innovation help accelerating renewable production integration into power systems, especially in microgrids. Renewable production such as photovoltaic rate keeps increasing in such systems, targeting 100% renewable production microgrids. In this context, the study of microgrid stability without synchronous machine become essential. Among different axes of research and development, innovations relative to advanced control solutions in micrgrid and gird-forming converters is one of the most promising as that can help to address both frequency and voltage stability. Specifications on required control functionalities are still under discussion while research and industrial entities have started to release solutions with case-by-case application. Some functionalities remained to be developed/ validated in inverter control level. Indeed, large signals phenomena such as microgrid mode changing from grid-connected to islanded, or reversely, blackstart or short circuit fault are part of challenges to go through. The PhD objectives are to address the development of these functionalities, by: - Build of methodology for new microgrid stability with high rate or 100% of renewable production - Modelling and simulation of two microgrid case studies of different power scales, with test of state-of the-art control to address stability issues. Starting from state of the art controls and improve them for adaptive and robustness criteria - Experimental validation with HIL tests and participation to implementation of the proven control solution in inverter prototype

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Digital twin of the smart electricity grid by real-time simulation coupled with experimentation (hardware-in-the-loop): methodology and applications

Département des Technologies Solaires (LITEN)

Laboratoire Systèmes Electriques Intelligents



Smart Energy grids (.pdf)

This thesis project is concerned to try the challenge with innovative techniques such as real-time simulation, co-simulation and hardware-in-the-loop. The main objective is to propose a methodology for the implementation of the digital twin (DT) for applications in cyber physical energy system (CPES). The thesis subject consists of three main scientific locks that we propose corresponding research and development avenues: 1 / Development of simulation models for a multi-scale / multi-physical CPES, in particular through the use of new digital technologies such as artificial intelligence (AI) and data modeling. 2 / Coupling between the DT and the physical experimentation environment by real-time simulation of HIL / PHIL and coupling with a SCADA system. 3 / Development of innovative applications with DT for the CPES.

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