Journal article

Effect of inertia heterogeneity on frequency dynamics of low-inertia power systems

Atia Adrees, JV Milanovic, Pierluigi Mancarella

IET Generation, Transmission and Distribution | Institution of Engineering and Technology | Published : 2019


Based on fundamental dynamic simulation principles and illustrative case studies, this study aims to identify key changes in the dynamic behaviour of the system due to the high penetration of renewable energy sources (RES) affecting frequency dynamics and provide guidelines for performing frequency stability analysis in low-inertia power systems with a large penetration of RES. First, a critical comparison of the frequency responses obtained using a system equivalent model and a detailed dynamic model following an active power disturbance are presented. It is then demonstrated, using detailed dynamic models of two multi-area systems, such that when the proportion of RES prevails over the sha..

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