IEEE Oakland East Bay Section

Power system oscillation is a significant stability concern for utility companies, especially with the increased interconnection of inverter-based resources (IBRs). Traditionally, oscillations are investigated using phasor data. This presentation approaches the problem by examining the actual voltage and current waveforms underlying the phasors. It is found that oscillations are the appearance of beating waveforms in the phasor form. The beating waveforms, in turn, are caused by interharmonics (defined per IEC 61000-4-30). Notably, it can be proven that the presence of interharmonics is both a necessary and sufficient condition for phasor oscillations, and synchronous generator oscillations can be easily explained using interharmonics. Multiple field measurement results will be used to substantiate these findings. The interharmonic insights could lead to many innovative applications. Two of them will be shared here. The first one is to locate oscillation sources using measurement data. The second one is to determine generator participation factors based on small-signal power system dynamic models. Speaker(s): Wilsun Xu Agenda: 4:00pm - Event Starts 4:45pm - Q&A 5:00pm - Adjourn Times are in PST. Virtual: https://events.vtools.ieee.org/m/477906

Energize Merced is a full-day event revolving around electronics and energy. We hope to bring together students and professionals to collaborate and form new partnerships, develop professional and technical skills, and learn about new developments. The full schedule is currently being planned. From the corresponding admin meeting: 2021 Documents provided by Prof. Kurtz can serve as temporary schedule. Speaker Distribution: o 3 Industry Speakers o 3 Research Speakers o 1 Career Center person Poster Session o Professor Kurtz can notify students from Sustainable Energy class and other faculty. o Easels can be picked up and held by Professor Kurtz Brandon will find funding methods o No response from IEEE for bank account. o Professor Kurtz: reoccurring email to different people (only do one person for PRESSURE) on calendar. Poster being created by Zackary. Draft Poster: 5200 Lake Rd, Merced, California, United States, 95343

The IEEE SF & OEB Power & Energy Society (PES) Chapters invite you to join us on April 24, 2025 11:45 AM PDT, for a virtual Lunch-and-Learn PES Day event to hear Richard Hunt from Quanta Technology provide an Introduction to IEC 61850. Introduction to IEC 61850 IEC 61850 is a core standard for a smart grid, enabling data modeling of power system functions and sharing this data between applications using digital communications. IEC 61850 data can be used for dynamic equipment ratings to permit more load out of existing infrastructure, integrate renewable energy, detect falling conductors to reduce wildfire risks, even lower greenhouse gases by reducing the amount of copper wiring used in substations. This session will discuss the fundamentals of IEC 61850, including data model, communication methods, services, and configuration. Topics: - Why do we care about IEC 61850? - What does IEC 61850 do? - How does IEC 61850 work? At the end of the session, attendees should have a general understanding of IEC 61850. This session can be the starting point for further investigation into system and network architecture, testing, and implementing specific system functionality. Speaker(s): Rich Hunt, PE, Executive Advisor - Quanta Technology, Virtual: https://events.vtools.ieee.org/m/478617