EU PVSEC Programme Online
EU PVSEC 2021, 6 - 10 September 2021
Presentation: 6BO.17.4 Frequency Support with Ultra-Capacitor ESS for Micro Grid with High Share of PV Production
Type: Oral
Date: Tuesday, 7th September 2021
10:30 - 12:00
Author(s): E. Toutain, N. Stankovic
Presenter / Speaker: E. Toutain, EDF R&D, Moret-sur-Loing, France
Event: Conference Conference
Session: 6BO.17 Electrical Grid Integration / Solar Power Generation Coupling with Energy Storage
Topic: 6. 4 Storage
Summary / Abstract: PV generation, especially in the equatorial regions, has proven to be an opportunity to decarbonize electrical production. Its modularity makes it easier for the implementation on a small scale. However, as the participation of the solar energy on the grid increases, it becomes more challenging to ensure grid stability due to the intermittent nature of the PV production. Microgrids are already facing challenges with frequency stability. In other words, existing generators are limited in terms of compensation of high production variation due to PVs and wind farms. To solve this emerging issue, several strategies could be implemented: Wind farms and PV farms might have to comply with the same standard as regular power plant. It means that the production must be regulated to avoid unwanted fluctuation, especially during critical periods. Adding new assets to support the grid in case of strong unbalances (short term and long term) This paper introduces a generic approach for frequency grid support by using an ultra-capacitor storage system. Using the benefit of this technology (high power, high endurance), electrostatic storage can provide 24/24 frequency support to the grid if controlled properly. This control approach has been tested and developed by EDF R&D.