Phd Majed Eddine MOUSTAID “Experimental development of a thermosiphon loop for thermal regulation of power electronic devices”

By |January 16th, 2020|Categories: Phd, Power Electronics & Converters|

The work of this thesis focuses on the experimental development of a passive and biphasic cooling system to cool down power electronics. Some of those modules are mean voltage power converters developed by Supergrid Institute. Some constraints have been imposed upstream to this project. While some limitations are of the technological nature, other constraints are related mainly to the environmental and biological aspects. The first part of this thesis was to find a suitable cooling system that could be adapted to the project specifications. After some research, we decided to build a loop thermosiphon filled with NOVEC 649.

SuperGrid Institute has achieved a major milestone in the development of 10 kV Silicon Carbide (SiC) devices

By |January 9th, 2020|Categories: Power Electronics & Converters|

SuperGrid Institute has achieved a major milestone in the development of 10 kV Silicon Carbide (SiC) devices such as 5A BJT and 50A PIN diode as part of its work on developing innovative solutions for MV converters. Recent tests revealed outstanding switching performances.

SuperGrid Institute organised its Climate Collage event

By |December 20th, 2019|Categories: Event|

This Tuesday, the 17th of December, SuperGrid Institute organised a Climate Collage event for its team. The Climate Collage is an interactive workshop based on collective intelligence that raises awareness of climate change and allows participants to gain a better understanding of the the complexity of this issue in a fun and easy way.

Majededdine MOUSTAID was awarded the HEFAT 2019 Outstanding Paper Award

By |December 20th, 2019|Categories: Event|

SuperGrid Institute is proud to announce that Majededdine MOUSTAID was awarded the HEFAT 2019 Outstanding Paper Award for their “Study of convective condensation in a thermosiphon loop”, in the “heat exchangers 2” session. Congratulations for this well-deserved recognition! This study was a collaboration between SuperGrid Institute, Ampère Laboratory & LaTEP.

Phd Ragavendran RAMACHANDRAN “Control and Power Management of an Offshore Wind Power Plant with a Diode Rectifier based HVDC Transmission”

By |December 16th, 2019|Categories: Phd, Supergrid Architecture & Systems|

 Energy Transition for a more sustainable world is now the priority in societies. Towards this objective, especially in Europe, the offshore wind energy development has been relatively rapid. For Offshore Wind Power Plants (OWPP) farther from the shore (50 km and beyond) Voltage Source Converter (VSC) based High Voltage DC (HVDC) Transmission has become the prominent solution. Replacement of the offshore VSC station by multiple Diode Rectifier Units (DRUs) led to a cheaper, more compact and robust solution. This thesis focusses on various technological and scientific problems involved in the control system of the Offshore Wind power Plant with Diode Rectifier (DR) based HVDC transmission. These challenges are first reviewed in detail along with the state of the art. Then, based on the system dynamics, a grid forming control scheme is proposed by using the P-V and Q-f droop relationships, with a solution for the synchronization of the wind generators. Moreover, some of the selected control solutions in the literature for this topology are reviewed, compared and assessed by using time domain simulations of a study case. Following this, the different solutions for black start of the offshore AC system are analyzed from the available literature and they are compared using the relevant qualitative criteria. The various faults in the offshore system are then analyzed and the above designed grid forming control scheme is extended with Fault Ride through (FRT) capability, for offshore AC grid faults. Finally, a brief analysis is done on the challenges for the integration of this OWPP topology into a Multi Terminal DC (MTDC) network.