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arXiv · 1903.09743

Distributed Barrier Certificates for Safe Operation of Inverter-Based Microgrids

Soumya Kundu·Sijia Geng·Sai Pushpak Nandanoori·Ian A. Hiskens·Karan Kalsi
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Abstract

Inverter-interfaced microgrids differ from the traditional power systems due to their lack of inertia. Vanishing timescale separation between voltage and frequency dynamics makes it critical that faster-timescale stabilizing control laws also guarantee by-construction the satisfaction of voltage limits during transients. In this article, we apply a barrier functions method to compute distributed active and reactive power setpoint control laws that certify satisfaction of voltage limits during transients. Using sum-of-squares optimization tools, we propose an algorithmic construction of these control laws. Numerical simulations are provided to illustrate the proposed method.

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Soumya Kundu, Sijia Geng, Sai Pushpak Nandanoori, Ian A. Hiskens, Karan Kalsi. 2019-03-23. Distributed Barrier Certificates for Safe Operation of Inverter-Based Microgrids. https://arxiv.org/abs/1903.09743

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