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Join us for the upcoming technical talk —attend in person at Stockman’s Restaurant or virtually via (https://teams.microsoft.com/l/meetup-join/19%3ameeting_MGYxYTkzNmMtMzg0MS00MjdjLTkwYmMtOWNkMWMwNjMzOWFi%40thread.v2/0?context=%7b%22Tid%22%3a%224cf464b7-869a-4236-8da2-a98566485554%22%2c%22Oid%22%3a%2264d770c8-e8c2-4ef1-b2f4-1e7ebd03bd37%22%7d) Title: Enabling gid-forming control in unbalanced distribution networks. Abstract: Distribution networks are often unbalanced, causing oscillatory responses in inverter control designed for balanced conditions. To address this problem, this paper develops a grid-forming control effective under unbalanced conditions and meets specifications by setting and regulating frequency and voltage, providing voltage support, sharing active power, injecting negative sequence current, and providing fault ride-through. The proposed control features enhanced frequency and voltage droop controllers and nested current and voltage control loops that all nicely integrate an enhanced current limiter. To achieve the control design, a time-domain transformation appropriate for inverter control is proposed. This enables time-domain decomposition of unbalanced electrical signals into positive and negative synchronous reference frames. The effectiveness of the proposed transformation and grid-forming control is demonstrated through real-time simulation of a modified IEEE 123 distribution network on the Real-Time Digital Simulator. Speaker: Yemi Ojo Yemi Ojo earned his Master’s degree in electrical engineering and renewable energy systems from the University of Leeds, UK, and a PhD in electrical engineering from the University of Cambridge, UK. He is currently a postdoctoral researcher in the Grid Integration and Control group at Idaho National Laboratory. His research interests include control, analysis, and optimization of power networks with applications to inverter-based microgrids. 1175 Pier View Dr, Idaho Falls, Idaho, United States, 83402, Virtual: https://events.vtools.ieee.org/m/491508 |
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