October 2019 - Page 2 sur 2 - SuperGrid Institute

Ahmed Zama honored with the IEEE “Doctorate Laureate” for his thesis work
Gallery
Ahmed Zama honored with the IEEE “Doctorate Laureate” for his thesis work

Architecture & systèmes du supergrid, Evenement

Ahmed Zama honored with the IEEE “Doctorate Laureate” for his thesis work

Communications2023-01-31T13:33:14+01:00October 10th, 2019|Architecture & systèmes du supergrid, Evenement|

Every year the French chapter of IEEE Power & Energy Society (PES), in collaboration with SEE (Society of Electricity, Electronics and Information and Communication Technologies), recognises outstanding PhD theses and hands out the “outstanding engineer of the year” prize at an annual evening ceremony. This Wednesday the 9th of October, Ahmed Zama was honoured with the IEEE “Doctorate Award” for his thesis work on “Modeling and Control of Modular Multilevel Converters (MMCs) for HVDC applications”.

Use of Unbalanced Insulation for the Limitation of Double-Pole Lightning Flashovers in Double Circuit HVDC Overhead Lines
Gallery
Use of Unbalanced Insulation for the Limitation of Double-Pole Lightning Flashovers in Double Circuit HVDC Overhead Lines

Tout

Use of Unbalanced Insulation for the Limitation of Double-Pole Lightning Flashovers in Double Circuit HVDC Overhead Lines

Communications2023-01-31T13:32:29+01:00October 7th, 2019|Tout|

Lightning studies are a critical part of any system involving overhead lines. As HVDC technologies develop, new problems and questions arise regarding the lightning performance of HVDC overhead lines. For instance, the installation of two separate HVDC circuits on the same transmission tower may become a popular alternative for the uprating of old AC lines to take advantage of the already existing Right-of-Ways. Double-pole flashovers may be particularly constraining in double circuit HVDC systems, since they could lead to the loss of both circuits at the same time due to the flashover of both poles of the same polarity having the same amplitude at all times (which is not the most likely case in AC systems). This corresponds to a 100% of loss of transmitted power, which could represent a threat for the system stability. This constitutes the main motivation for this work.

Use of Unbalanced Insulation for the Limitation of Double-Pole Lightning Flashovers in Double Circuit HVDC Overhead Lines
Gallery
Use of Unbalanced Insulation for the Limitation of Double-Pole Lightning Flashovers in Double Circuit HVDC Overhead Lines

Architecture & systèmes du supergrid, Publications

Use of Unbalanced Insulation for the Limitation of Double-Pole Lightning Flashovers in Double Circuit HVDC Overhead Lines

Communications2021-08-11T16:43:54+02:00October 7th, 2019|Architecture & systèmes du supergrid, Publications|

Lightning studies are a critical part of any system involving overhead lines. As HVDC technologies develop, new problems and questions arise regarding the lightning performance of HVDC overhead lines. For instance, the installation of two separate HVDC circuits on the same transmission tower may become a popular alternative for the uprating of old AC lines to take advantage of the already existing Right-of-Ways. Double-pole flashovers may be particularly constraining in double circuit HVDC systems, since they could lead to the loss of both circuits at the same time due to the flashover of both poles of the same polarity having the same amplitude at all times (which is not the most likely case in AC systems). This corresponds to a 100% of loss of transmitted power, which could represent a threat for the system stability. This constitutes the main motivation for this work.

Stage dating is back at SuperGrid Institute!
Gallery
Stage dating is back at SuperGrid Institute!

Evenement

Stage dating is back at SuperGrid Institute!

Communications2022-11-30T10:44:38+01:00October 1st, 2019|Evenement|

Stage dating is back at SuperGrid Institute! Get your CV ready and come along to apply for one, or several, of our internships on Thursday the 24th October at our premises in Villeurbanne (69). Our internship tutors will be available for a whole afternoon, seeking new talents to help us shape the power transmission system of tomorrow!