Inverter-Based Resources: Challenges & Opportunities

What Causes Oscillations to be Introduced into the Grid by IBRS? (a) P [MW] 15 (i) IBR1 (ii) IBR2 (iii) IBR3 (iv) IBR4 IBR4 10 5 0 IBRI IBR2 www IBR3 0 0.1 0.2 0.3 Time [s] IBRs can introduce oscillatory modes into the grid. The grid may still be stable if these are well- damped. But... What inverter characteristics introduce oscillations on different grid types? How do we mitigate oscillations? • Mitigation options for GFL and GFM controls How do inverter and plant response times affect oscillations and system stability? Analysis of November 21, 2021, Kaua'i Island Power System 18-20 Hz Oscillations. 2023. https://arxiv.org/pdf/2301.05781.pdf 7 aes

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