Impact of high penetration of renewable energy sources on grid frequency behaviour. (February 2023)

• Record Type: Journal Article
• Authors: Saha, S.; Saleem, M.I.; Roy, T.K.
• Is Part Of: International journal of electrical power & energy systems. Volume 145(2023)
• Publication Date: 2023-02
• Subjects: Renewable energy sources -- Inverters -- Inertia -- Eigenvalue -- Frequency response -- RoCoF -- Frequency nadir; Electrical engineering -- Periodicals; Electric power systems -- Periodicals; Électrotechnique -- Périodiques; Réseaux électriques (Énergie) -- Périodiques; Electric power systems; Electrical engineering; Periodicals; 621.3
• DOI: 10.1016/j.ijepes.2022.108701
• Languages: English
• ISSNs: 0142-0615

Abstract

Abstract: With the emergence of renewable energy sources (RESs), the power grid all over the world is going through a paradigm shift. Traditional rotating synchronous generators are being replaced by inverter-based RESs, and this trend is expected to continue in the coming years. Consequently, the inertia of the grid is gradually decreasing, which can pose significant challenges on grid frequency stability. This paper assesses the impact of integration of inverter-based RESs on grid frequency response through eigenvalue analysis of low-inertia power grids. Also, this study quantifies this impact by analysing sensitivity of the grid frequency, RoCoF, frequency nadir and frequency stability on the penetration level basis of RESs. Case studies on the modified IEEE 39 bus test system have been presented to demonstrate the effectiveness of the proposed approach in analysing the impact of high penetration of RESs on frequency stability. Highlights: Quantification of the impact of renewable energy sources on grid frequency. Frequency stability of low inertia renewable energy dominated power grid. Inertia sensitivity of grid frequency stability.