USING LOCAL RENEWABLE ENERGY TO ENERGISE A MICROGRID: IMPACT OF THE SHARE OF GRID FORMING INVERTERS - Multidisciplinary Institute in Artificial intelligence - Grenoble Alpes
Conference Papers Year : 2023

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

Abstract

When 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.

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Electric power
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Dates and versions

hal-04134420 , version 1 (13-01-2025)

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Jane Marchand, Jérôme Buire, Vincent Debusschere, Nabil El Jarrai, Jean Pompee, et al.. USING LOCAL RENEWABLE ENERGY TO ENERGISE A MICROGRID: IMPACT OF THE SHARE OF GRID FORMING INVERTERS. 27th International Conference on Electricity Distribution (CIRED 2023), Jun 2023, Rome, Italy. pp.10338, ⟨10.1049/icp.2023.0449⟩. ⟨hal-04134420⟩
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