Emmanuel De Jaeger
Recent publications

is Vice-Dean of the Louvain School of Engineering (Ecole Polytechnique de Louvain) in charge of the relationships with industry.
His research activities are related to Smart Grids, innovative concepts of virtual inertia and frequency containment reserves and their impact on power systems dynamics, active autonomous electricity distribution grids planning, innovative pumped hydro energy storage systems build on specific geologic sites (out of use quarries or underground cavities) and their integration in power systems, Power Quality and EMC in Smart Grids, Microgrids control...
Before holding his current position at the university, Emmanuel was Scientific Director and member of the Management Committee at Laborelec (GDF Suez - Research and Competence Centre in Electrical Power Technology). He has occupied different positions in this organization since 1991, from R&D engineer to Technical Director of the Electricity Grids and End-Use Department.

Research group(s): MEED

PhD and Post-doc researchers under my supervision:

Conducted disturbances in the frequency range 2-150 kHz
Caroline Leroi

During last decades, the power grid has changed significantly. The main among various causes of this change is the increasing number of devices using power electronics. These devices include switches with frequency commutation located between 2kHz and 150kHz. Besides the Power Line Carrier (PLC) which is a means of communication using the existing power network works also in this frequency range. Therefore, there is a coexistence of intentional and unintentional emissions in this frequency band while the standardization which is supposed to regulate the emission of the disturbances and the immunity of sensitive devices is currently almost non-existent for this frequency band.
In this context, the aim of this PhD thesis is to contribute to a better understanding of the origin, the propagation and the impact of the disturbances in the frequency range 2-150 kHz. It is important to gather knowledge in order to set appropriate limits in the standards.
Several observations have already been made through measurements in the litterature. However, there is a lack of theoretical explanation. In this thesis, models of disturbances sources are developed as well as models of grid components. These models will allow us to study the propagation and to understand which parameters influence the level of disturbances.
Models are developed in Matlab Simulink environment and more specifically with the SimPowerSystems toolbox. Results will also be validated through experiments.

Techno-economic viability of variable-speed pumped-storage hydropower based on centrifugal pumps used as turbines
Thomas Mercier

This research takes place in the frame of SmartWater, a 3.5-year research project funded by the Walloon region, Belgium, and whose goal is to investigate the conversion of former mines and quarries into pumped-storage hydropower (PSH) sites, taking advantage of existing cavities. The project involves several academic and industrial partners, among which Laborelec, Electrabel and Cofely, as well as sponsors, including Ores, Elia, Charmeuse and Ensival-Moret. The SmartWater project is divided in several work packages, ranging from the geological study of potential mines and quarries, to the economical and electromechanical aspects of pumped-storage hydropower.

Stability performance analysis and control of islanded microgrids
Guy Wanlongo Ndiwulu

Nowadays the discussions about electric energy systems are generally focused on the system reliability and valorisation of renewable energies. Thereby, several means are investigated in order to achieve its goals, among which we have microgrids. These latter are considered as electrical subsystems with distributed energy generators, energy storage devices and loads, able to operate with connection to the main grid or in islanded mode. This electrical system technology is very different compared to the conventional power systems. Because the interfaced power converters based distributed sources characterize them. This is making the microgrid controllability and stability depending of power converters.
The main contribution of this project is to propose a control strategy able to maintain the voltage amplitude and frequency in the allowable range in the cases of islanded microgrids fed by miscellaneous micro-sources (photovoltaic, small hydropower and diesel generator) and energy storage devices such as batteries. The developed control strategy is tested with Matlab/Simulink.

Use of flexibility given by electrical consumers on a pilot distribution grid
Didier Forclaz

This research concerns the use of flexibility that can be given by the individual consumers in their electrical consumption. The focus is on integrating renewable energies into the distribution grid.

Recent publications

See complete list of publications

Journal Articles

1. Mercier, Thomas; Hardy, Clément; Van Tichelen, Pierre; Olivier, Mathieu; De Jaeger, Emmanuel. Control of variable-speed pumps used as turbines for flexible grid-connected power generation. In: Electric Power Systems Research, Vol. 176, no.105962, p. 9 (2019). doi:10.1016/j.epsr.2019.105962.

2. Martin, Benoît; Feron, Baptiste; De Jaeger, Emmanuel; Glineur, François; Monti, Antonello. Peak shaving: a planning alternative to reduce investment costs in distribution systems?. In: Energy Systems, Vol. 10, p. 871-887 (2019). doi:10.1007/s12667-018-0299-3.

3. Duponcheel, Matthieu; Leroi, Caroline; Zeoli, Stephanie; Winckelmans, Grégoire; Bricteux, Laurent; De Jaeger, Emmanuel; Chatelain, Philippe. Investigation of the complete power conversion chain for small vertical- and horizontal-axis wind turbines in turbulent winds. In: Journal of Physics: Conference Series, Vol. 1037, no.1037, p. 072046 (2018). doi:10.1088/1742-6596/1037/7/072046.

4. Mercier, Thomas; Olivier, Mathieu; De Jaeger, Emmanuel. Operation ranges and dynamic capabilities of variable-speed pumped-storage hydropower. In: Journal of Physics: Conference Series (Print), Vol. 813, p. 012004 (2017). doi:10.1088/1742-6596/813/1/012004.

5. Matagne, Ernest; Labrique, Francis; Dehez, Bruno; De Jaeger, Emmanuel; Janssens, Noël; ROBERT, Alain. Recherches dans le domaine des systèmes électriques au Laboratoire d'Electrotechnique et d'Instrumentation de l'Ecole Polytechnique de Louvain. In: Revue E tijdschrift, Vol. 124, no. 4, p. 4 (2008).

Conference Papers

1. Wanlongo Ndiwulu, Guy; De Jaeger, Emmanuel; Kuti Lusala, Angelo. Islanded Microgrid Voltage Control Structure Small-Signal Stability Analysis. In: Proceedings of IEEE PowerTech. p. 1-6 (2019). doi:10.1109/PTC.2019.8810896.

2. Wanlongo Ndiwulu, Guy; De Jaeger, Emmanuel; Kuti Lusala, Angelo. Inner Current Control Loop Influence on Islanded Microgrid Dynamic Behavior. In: CIRED Proceedings. p. 1-5 (2019).

3. Leroi, Caroline; De Jaeger, Emmanuel; Cassano, Stefano. Modeling of harmonic propagation of fast DC EV charging station in a Low Voltage network.

4. Leroi, Caroline; De Jaeger, Emmanuel. Modelling of harmonics produced by Compact Fluorescent Lamps in the frequency range 2-150 kHz.

5. Duponcheel, Matthieu; Leroi, Caroline; Zeoli, S.; Winckelmans, Grégoire; Bricteux, L.; De Jaeger, Emmanuel; Chatelain, Philippe. Investigation of the complete power conversion chain for small vertical- and horizontal-axis wind turbines in turbulent winds. doi:10.1088/1742-6596/1037/7/072046.

6. Wanlongo Ndiwulu, Guy; De Jaeger, Emmanuel; Kuti Lusala, Angelo. Local stability performance analysis of islanded microgrid based on inner control loops approach. In: CIRED Proceedings. p. 1-4 (2018).

7. Martin, Benoît; Glineur, François; De Rua, Philippe; De Jaeger, Emmanuel. Loss reduction in a windfarm participating in primary voltage control using an extension of the Convex DistFlow OPF. In: Proceedings of the 20th Power Systems Computation Conference, IEEE, 2018, 978-1-910963-10-4. doi:10.23919/PSCC.2018.8442758.

8. Wanlongo Ndiwulu, Guy; De Jaeger, Emmanuel; Kuti Lusala, Angelo. Inner control loops approach to control the islanded photovoltaic microgrid. In: IEEE Africon Proceedings. p. 1204-1209 (2017). doi:10.1109/AFRCON.2017.8095646.

9. Jomaux, Julien; Mercier, Thomas; De Jaeger, Emmanuel. Provision of frequency containment reserves with batteries and power-to-heat. doi:10.1109/PTC.2017.7980915.

10. Mercier, Thomas; Jomaux, Julien; Olivier, Mathieu; De Jaeger, Emmanuel. Provision of primary frequency control with variable-speed pumped-storage hydropower. doi:10.1109/PTC.2017.7980920.

Book Chapters

1. Martin, Benoît; De Jaeger, Emmanuel; Glineur, François; Latiers, Arnaud. A dynamic programming approach to multi-period planning of isolated microgrids. In: Advances in Energy System Optimization (Proceedings of the first International Symposium on Energy System Optimization) , Springer, 2016, p. 123-137. 978-3-319-51794-0. doi:10.1007/978-3-319-51795-7_8.

2. Matagne, Ernest; De Jaeger, Emmanuel. Modeling and Pamameter Determination of the Saturated Synchronous Machine. In: Electrical Actuators, Identification and Observation (Electrical Actuators; xxx), John Wiley & Sons, ISTE Ltd: Great Britain and United States, Chippenham and Eastbourne, 2010, p. 49-117. 978-1-84821-096-7.

3. Matagne, Ernest; De Jaeger, Emmanuel. Modélisation et détermination des paramètres de la machine synchrone saturée. In: Identification et observation des actionneurs électriques 1. Mesures et identification (EGEM; xxx), Lavoisier, Hermès-science: Paris, France, 2007, p. 69-139. 978-2-7462-1544-3.

Working Papers

1. Latiers, Arnaud; Glineur, François; De Jaeger, Emmanuel. Feasible solutions to a non-linear state-dependent delay control problem (xxx), 2014.


1. De Jaeger, Emmanuel. Modélisation des machines synchrones saturées, prom. : Garrido Da Silva, Manuel, 1991.