BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/Los_Angeles BEGIN:DAYLIGHT DTSTART:20260308T030000 TZOFFSETFROM:-0800 TZOFFSETTO:-0700 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:PDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20251102T010000 TZOFFSETFROM:-0700 TZOFFSETTO:-0800 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:PST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20251121T043207Z UID:9CFA28FE-8830-4F16-8B0E-E2A0EE5F3D08 DTSTART;TZID=America/Los_Angeles:20251120T170000 DTEND;TZID=America/Los_Angeles:20251120T181500 DESCRIPTION:[]\n\nAs Dominion Energy's power grid has grown to include an i ncreasing number of inverter-based resources and power electronic componen ts\, we have begun to observe an increase in previously unforeseen and dif ficult-to-explain dynamic behaviors. In this paper\, we present a measurem ent-based analysis of 14.7–14.8 Hz oscillations emerging from a data c enter in Dominion Energy's power grid. Synchrophasor data collected over s everal months were analyzed using non-parametric spectral analysis approac hes to understand its inception and\, more importantly\, to characterize i ts behavior. What makes this case unique is the presence of an independent and unplanned exogenous excitation in the system. This excitation plays a critical role in understanding the inception and emergence of an otherwis e unobservable dynamic process that\, as it destabilizes\, results in osci llations at a higher and narrower frequency range than that of conventiona l power system dynamics. This work highlights the importance of understand ing the impact of data center loads interfaced with power electronics beyo nd typical concerns such as sizing and demand.\n\nAbout the Speaker:\n\nLu igi Vanfretti is currently a Full Professor at Rensselaer Polytechnic Inst itute\, since July 2022\, where he was a tenured Associate Professor from 2017-6/2022-6. At RPI\, he leads research projects in his laboratory and w ith his research team\, ALSETLab\, in the domains of electrical power syst ems and aircraft electrification.\n\nIn addition to his academic duties\, through Vanfretti Consulting LLC\, Dr. Vanfretti serves as a consultant fo r utilities and research institutions\, including Dominion Energy in Virgi nia\, USA\, the New York Power Authority\, New York\, USA\, the SuperGrid Institute in Lyon\, France\, and CENACE (the power system operator of Ecua dor)\, Quito\, Ecuador\, to name a few.\n\nVirtual: https://events.vtools. ieee.org/m/507632 LOCATION:Virtual: https://events.vtools.ieee.org/m/507632 ORGANIZER:srazanaq@uwo.ca SEQUENCE:14 SUMMARY:IEEE PES Lecture: Unforeseen Data Center Oscillations in Dominion E nergy’s Grid URL;VALUE=URI:https://events.vtools.ieee.org/m/507632 X-ALT-DESC:Description: <br /><p><br><img style="display: block\; margin-le ft: auto\; margin-right: auto\;" src="https://events.vtools.ieee.org/vtool s_ui/media/display/06e0bce6-c310-46f1-b63a-22d828ed4fda" alt="" width="756 " height="86"></p>\n<p class="MsoNormal"><span style="mso-fareast-font-fam ily: 'Times New Roman'\;">As Dominion Energy's power grid has grown to inc lude an increasing number of inverter-based resources and power electronic components\, we have begun to observe an increase in previously unforesee n and difficult-to-explain dynamic behaviors. In this paper\, we present a measurement-based analysis of 14.7&ndash\;14.8</span><span style="font-fa mily: 'Arial'\,sans-serif\; mso-fareast-font-family: 'Times New Roman'\;">  </span><span style="mso-fareast-font-family: 'Times New Roman'\;">Hz os cillations emerging from a data center in Dominion Energy's power grid. Sy nchrophasor data collected over several months were analyzed using non-par ametric spectral analysis approaches to understand its inception and\, mor e importantly\, to characterize its behavior. What makes this case unique is the presence of an independent and unplanned exogenous excitation in th e system. This excitation plays a critical role in understanding the incep tion and emergence of an otherwise unobservable dynamic process that\, as it destabilizes\, results in oscillations at a higher and narrower frequen cy range than that of conventional power system dynamics. This work highli ghts the importance of understanding the impact of data center loads inter faced with power electronics beyond typical concerns such as sizing and de mand.</span></p>\n<p>&nbsp\;</p>\n<p><span style="text-decoration: underli ne\; font-size: 12pt\;"><span style="color: rgb(0\, 0\, 0)\; text-decorati on: underline\;"><strong>About the Speaker:</strong></span></span></p>\n<p ><img src="https://events.vtools.ieee.org/vtools_ui/media/display/45825130 -538f-4a3e-ad48-533cdc8f2656" width="306" height="310"></p>\n<p class="Mso Normal" style="text-align: justify\;"><span lang="EN" style="font-size: 12 pt\; font-family: arial\, helvetica\, sans-serif\;"><strong>Luigi Vanfrett i</strong> is currently a Full Professor at Rensselaer Polytechnic Institu te\, since July 2022\, where he was a tenured Associate Professor from 201 7-6/2022-6. At RPI\, he leads research projects in his laboratory and with his research team\, ALSETLab\, in the domains of electrical power systems and aircraft electrification. </span></p>\n<p class="MsoNormal" style="te xt-align: justify\;"><span lang="EN" style="font-size: 12pt\; font-family: arial\, helvetica\, sans-serif\;">In addition to his academic duties\, th rough Vanfretti Consulting LLC\, Dr. Vanfretti serves as a consultant for utilities and research institutions\, including Dominion Energy in Virgini a\, USA\, the New York Power Authority\, New York\, USA\, the SuperGrid In stitute in Lyon\, France\, and CENACE (the power system operator of Ecuado r)\, Quito\, Ecuador\, to name a few.</span></p> END:VEVENT END:VCALENDAR