Le conseil local de santé mentale, un pas de plus vers une psychiatrie citoyenne (à propos du conseil local Franco BASAGLIA)

Résumé françaisDIJON-BU Médecine Pharmacie (212312103) / SudocSudocFranceF

USING LOCAL RENEWABLE ENERGY TO ENERGISE A MICROGRID: IMPACT OF THE SHARE OF GRID FORMING INVERTERS

International audienceWhen a portion of the low-voltage distribution grid, typically a village, is disconnected from the upstream network due to a fault or for maintenance, the Distribution System Operator (DSO) can temporarily re-energize it. Usually, the black-start capabilities in such a scenario are provided by a diesel generator which is conveyed to the islanded grid portion. However, less direct carbon emissions and higher resilience could be achieved if the islanded grid could be re-energized by using the available local renewable power generation. This requires changing the controllers of some of the currently grid-following residential photovoltaic inverters to grid-forming control mode, so that they can provide black-start capabilities and impose frequency and voltage. This paper studies the minimal ratio of grid-forming over grid-following inverters. It shows that for the case of the chosen grid, a stability limit exists as a function of the number of gridfollowing inverters and for a given capacity of gridforming inverters. Other parameters such as the repartition of grid-forming capacity over several devices are studied