About Aurélie Flegeo

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So far Aurélie Flegeo has created 266 blog entries.

SuperGrid Institute’s head office & platforms are fully operational!

2019-04-10T11:27:48+00:00April 9th, 2019|Event|

Nearly 150 people gathered together on Monday the 8th of April to inaugurate SuperGrid Institute’s headquarters. Our HQ is 5,560 square meters of offices and platforms dedicated to developing technologies: to build the electricity transmission network of the future, and to participate in the wide-scale integration renewable energies within the power network.

SuperGrid Institute, SME Patent Superstar of 2018

2019-04-05T20:03:07+00:00April 5th, 2019|Press release|

SuperGrid Institute has been rewarded for its ambitious intellectual property strategy, ranking first of the top 10 patent applicants in the SME category for 2018. Created in 2014, SuperGrid Institute has already filed 50 patent applications, including 16 in 2018 alone.

PhD Loriane DESMARS “Study of electrical and thermal properties of epoxy-anhydride composite materials for high voltage insulation”

2019-04-04T11:12:50+00:00April 2nd, 2019|High Voltage Substation Equipment, HVDC Cable Systems, Phd|

The work presented in this manuscript has been motivated by the necessity to develop more efficient electrical insulating materials compared to commercially available ones. An epoxy-anhydride matrix filled with micron sized alumina, often used to produce GIS solid insulators, has been used as a reference for this study.

Overview of DC–DC Converters Dedicated to HVdc Grids

2019-04-17T10:20:39+00:00February 19th, 2019|Power Electronics & Converters, Publications, Supergrid Architecture & Systems|

This paper presents an overview of the dc–dc power converters dedicated to HVdc proposing a classification based on their structure. Two large families are established: those which provide galvanic isolation, and those which do not. Several subfamilies are also proposed. An overview of the main HVdc applications that can be targeted with each family is also presented, highlighting the main converter requirements for each application case.

PhD Amjad MOUHAIDALI “Contribution to the modelling of HVDC cables for electromagnetic transient simulations”

2019-02-13T11:02:37+00:00February 13th, 2019|Phd, Supergrid Architecture & Systems|

The integration of new technologies in the electric grids made them more and more complex, and most likely future growth of power grids will be based more on underground cables than overhead lines. One problem here, is that the mathematical model for electromagnetic simulation of power cables still has some shortcomings regarding stability, accuracy and passivity. In this thesis, we evaluate the cable parameters using analytical and numerical methods.

FMEA of a non-selective fault-clearing strategy for HVDC grids

2019-04-17T10:24:03+00:00February 7th, 2019|Publications, Supergrid Architecture & Systems|

The Failure Mode Effect Analysis (FMEA) is a technique used to investigate failures in a process or component and to identify the resultant effects of these failures on system operations. In this paper it is explained how the FMEA can be used to define and assess the impact of the failure modes (FM) of a protection strategy for High Voltage Direct Current (HVDC) grids.

Virtual Capacitor Control for Stability Improvement of HVDC System Comprising DC Reactors

2019-04-17T10:17:08+00:00February 7th, 2019|Publications, Supergrid Architecture & Systems|

This paper first analyzes the underlying instability issue attributed to the DC reactor by using a simplified converter station model, which reveals that the DC-link capacitor can compensate for the detrimental effect of the DC reactor and increase the stability margin. This capacitor, however, is usually avoided and distributed over the capacitors in sub-modules in the state-of-the-art Modular Multilevel Converters (MMCs).