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:20251201T135720Z UID:F1F6CBDE-BEA6-48CA-9305-0D58DC55555F DTSTART;TZID=America/Los_Angeles:20251124T110000 DTEND;TZID=America/Los_Angeles:20251124T120000 DESCRIPTION:Widely recognized as a hydroelectric powerhouse\, Brazil has hi storically relied on hydropower to supply more than 90% of its annual elec tricity demand. In recent years\, however\, this dominance has declined wi th the rapid expansion of wind and solar generation. A significant portion of the new solar capacity comes from behind-the-meter distributed generat ion\, which remains largely uncontrollable and unobservable by the Brazili an Interconnected Power System (BIPS) operator.\n\nSpanning continental di mensions\, the BIPS depends on an extensive AC transmission network supple mented by six HVDC links\, totaling 20 GW of DC transmission capacity. Fou r of these links are radial connections from major generation sites\, whil e the two most recently commissioned and another currently under construct ion are embedded within the AC network.\n\nThe system is divided into four geo-electric regions with distinct seasonal wet and dry conditions\, all synchronously connected through extra-high-voltage AC lines. This configur ation underscores the critical role of interregional transmission. The rap id expansion of wind and solar farms\, particularly in the Northeast regio n\, has further increased the importance of these transmission corridors. In response\, Brazil is expanding HVDC interconnections between geo-electr ic regions to transfer surplus renewable generation to the main load cente rs in the Southeast.\n\nThe growing share of variable renewable resources\ , combined with a market-based dispatch framework\, has placed new demands on the control systems of embedded HVDC links. These conditions call for advanced HVDC power flow control strategies capable of adapting to real-ti me variations in generation and demand\, while mitigating adverse effects such as loop flows and increased transmission losses.\n\nThe major blackou t of August 15\, 2023\, exposed vulnerabilities previously unnoticed by th e system operator. This webinar will provide an overview of the current st ate of the BIPS\, discuss the technical and operational challenges associa ted with IBRs and hybrid AC/DC transmission integration\, and highlight ke y insights from the 2023 blackout event.\n\nCo-sponsored by: University of California Riverside\n\nSpeaker(s): Dr. Glauco Taranto\, \n\nVirtual: htt ps://events.vtools.ieee.org/m/512899 LOCATION:Virtual: https://events.vtools.ieee.org/m/512899 ORGANIZER:mail@maxcherubin.com SEQUENCE:23 SUMMARY:Challenges Posed by the Oversupply of Inverter-Based Resources and Hybrid AC/DC Transmission in the Brazilian Interconnected Power System URL;VALUE=URI:https://events.vtools.ieee.org/m/512899 X-ALT-DESC:Description: <br /><p class="MsoNormal" style="text-align: left\ ;" align="left"><span style="font-size: 14pt\; font-family: 'Times New Rom an'\, serif\;">Widely recognized as a hydroelectric powerhouse\, Brazil ha s historically relied on hydropower to supply more than 90% of its annual electricity demand. In recent years\, however\, this dominance has decline d with the rapid expansion of wind and solar generation. A significant por tion of the new solar capacity comes from behind-the-meter distributed gen eration\, which remains largely uncontrollable and unobservable by the Bra zilian Interconnected Power System (BIPS) operator.</span></p>\n<p class=" MsoNormal" style="text-align: left\;" align="left"><span style="font-size: 14pt\; font-family: 'Times New Roman'\, serif\;">Spanning continental dim ensions\, the BIPS depends on an extensive AC transmission network supplem ented by six HVDC links\, totaling 20 GW of DC transmission capacity. Four of these links are radial connections from major generation sites\, while the two most recently commissioned and another currently under constructi on are embedded within the AC network.</span></p>\n<p class="MsoNormal" st yle="text-align: left\;" align="left"><span style="font-size: 14pt\; font- family: 'Times New Roman'\, serif\;">The system is divided into four geo-e lectric regions with distinct seasonal wet and dry conditions\, all synchr onously connected through extra-high-voltage AC lines. This configuration underscores the critical role of interregional transmission. The rapid exp ansion of wind and solar farms\, particularly in the Northeast region\, ha s further increased the importance of these transmission corridors. In res ponse\, Brazil is expanding HVDC interconnections between geo-electric reg ions to transfer surplus renewable generation to the main load centers in the Southeast.</span></p>\n<p><span style="font-size: 14pt\; font-family: 'Times New Roman'\, serif\;">The growing share of variable renewable resou rces\, combined with a market-based dispatch framework\, has placed new de mands on the control systems of embedded HVDC links. </span><span style="f ont-size: 14pt\; font-family: 'Times New Roman'\, serif\;">These condition s call for advanced HVDC power flow control strategies capable of adapting to real-time variations in generation and demand\, while mitigating adver se effects such as loop flows and increased transmission losses.</span></p >\n<p><span style="font-size: 14pt\; font-family: 'Times New Roman'\, seri f\;"><span style="font-family: 'Times New Roman'\, serif\;">The major blac kout of August 15\, 2023\, exposed vulnerabilities previously unnoticed by the system operator. This webinar will provide an overview of the current state of the BIPS\, discuss the technical and operational challenges asso ciated with IBRs and hybrid AC/DC transmission integration\, and highlight key insights from the 2023 blackout event.</span></span></p> END:VEVENT END:VCALENDAR