BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/Denver BEGIN:DAYLIGHT DTSTART:20260308T030000 TZOFFSETFROM:-0700 TZOFFSETTO:-0600 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:MDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20261101T010000 TZOFFSETFROM:-0600 TZOFFSETTO:-0700 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:MST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260527T032113Z UID:D08112D2-8FA6-49BD-8987-CA70788A4D18 DTSTART;TZID=America/Denver:20260521T164500 DTEND;TZID=America/Denver:20260521T174500 DESCRIPTION:Join us for the upcoming technical talk —attend in person at Stockman’s Restaurant or virtually via [Microsoft Teams](https://teams.m icrosoft.com/l/meetup-join/19%3ameeting_MGYxYTkzNmMtMzg0MS00MjdjLTkwYmMtOW NkMWMwNjMzOWFi%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)\n\nTitle:\n\nHigh-fidelity Modeling and Simulation of Hydrodynamic Torque Converter: Demonstrating Synchronous Generation from Variable Spee d Prime Movers\n\nAbstract:\n\nThe integration of inverter-based energy re sources is increasingly replacing conventional synchronous generators in t he bulk power system\, impacting system inertia and deteriorating grid str ength due to the limited over-current capability of power electronic conve rters. Hydrodynamic Torque Converter (HTC)\, a mechanical isolator that al lows interfacing a variable speed prime mover with the grid through a sync hronous generator\, has the potential to mitigate these issues by mimickin g the operation and grid impacts of conventional synchronous generators. I n the context of wind power\, Type-5 wind turbine uses HTC to isolate wind speed variations from the grid-connected generator\, supporting synchrono us operation. However\, high-fidelity models of Type-5 wind turbine drivet rains are not widely available for grid integration and transient stabilit y studies. Additionally\, the limited deployment of Type- 5 turbines hinde rs the assessment of their contribution to bulk grid resilience. This talk will focus on modeling a Type-5 rated HTC\, based on the automobile grade hydrodynamic converter physics\, along with necessary geometry scaling an d angular position biasing. The talk will also cover steady-state analysis driven initialization routine\, hydraulic fluid flow control\, and convec tive heating from torque limiting action. The developed model will further illustrate transient instability mitigations from step electric load chan ges and wind speed disturbances\, thereby showcasing HTC’s grid synchron ism ability\, and potential for variable speed\, in-stream hydropower\, an d hydrokinetic systems.\n\nSpeaker: S M Shaiful Alam\n\nS M SHAFIUL ALAM ( Senior Member\, IEEE) received the B.S. and M.S. degrees in electrical and electronic engineering from Bangladesh University of Engineering and Tech nology\, Dhaka\, Bangladesh\, in 2008 and 2011\, respectively\, and the Ph .D. degree in electrical engineering from Kansas State University\, Manhat tan\, USA\, in 2015. He is currently a Research Scientist with Idaho Natio nal Laboratory\, USA\, and the Power and Energy Systems Group\, EES&T Dire ctorate. His current research interests include reliable and sustainable i ntegration of energy systems\, especially the modeling and validation of t he operation and control of hybrid energy systems through digital real-tim e simulation with hardware-in-the-loop testing. Additional information on his research activities is available through [Google Scholar](https://scho lar.google.com/citations?user=Sa5cNhwAAAAJ&hl=en).\n\nCo-sponsored by: INL -Idaho National Lab\n\n1175 Pier View Dr\, Idaho Falls\, Idaho\, United St ates\, 83402\, Virtual: https://events.vtools.ieee.org/m/555405 LOCATION:1175 Pier View Dr\, Idaho Falls\, Idaho\, United States\, 83402\, Virtual: https://events.vtools.ieee.org/m/555405 ORGANIZER:crnaik@ieee.org SEQUENCE:9 SUMMARY:Brew with the Crew: High-fidelity Modeling and Simulation of Hydrod ynamic Torque Converter: Demonstrating Synchronous Generation from Variabl e Speed Prime Movers. URL;VALUE=URI:https://events.vtools.ieee.org/m/555405 X-ALT-DESC:Description: <br /><p class="MsoNormal"><em>Join us for the upco ming technical talk &mdash\;attend in person at Stockman&rsquo\;s Restaura nt or virtually via&nbsp\;<a href="https://teams.microsoft.com/l/meetup-jo in/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">Microsoft Teams& nbsp\;</a></em></p>\n<p class="MsoNormal"><strong>Title:</strong></p>\n<p class="MsoNormal">High-fidelity Modeling and Simulation of Hydrodynamic To rque Converter: Demonstrating Synchronous Generation from Variable Speed P rime Movers</p>\n<p class="MsoNormal"><strong>Abstract: </strong></p>\n<p class="MsoNormal">The integration of inverter-based energy resources is in creasingly replacing conventional synchronous generators in the bulk power system\, impacting system inertia and deteriorating grid strength due to the limited over-current capability of power electronic converters. Hydrod ynamic Torque Converter (HTC)\, a mechanical isolator that allows interfac ing a variable speed prime mover with the grid through a synchronous gener ator\, has the potential to mitigate these issues by mimicking the operati on and grid impacts of conventional synchronous generators. In the context of wind power\, Type-5 wind turbine uses HTC to isolate wind speed variat ions from the grid-connected generator\, supporting synchronous operation. However\, high-fidelity models of Type-5 wind turbine drivetrains are not widely available for grid integration and transient stability studies. Ad ditionally\, the limited deployment of Type- 5 turbines hinders the assess ment of their contribution to bulk grid resilience. This talk will focus o n modeling a Type-5 rated HTC\, based on the automobile grade hydrodynamic converter physics\, along with necessary geometry scaling and angular pos ition biasing. The talk will also cover steady-state analysis driven initi alization routine\, hydraulic fluid flow control\, and convective heating from torque limiting action. The developed model will further illustrate t ransient instability mitigations from step electric load changes and wind speed disturbances\, thereby showcasing HTC&rsquo\;s grid synchronism abil ity\, and potential for variable speed\, in-stream hydropower\, and hydrok inetic systems. <span style="mso-spacerun: yes\;">&nbsp\;</span><span styl e="mso-spacerun: yes\;">&nbsp\;</span><span style="mso-spacerun: yes\;">&n bsp\;</span></p>\n<p><strong>Speaker:</strong> <span style="font-size: 11. 0pt\; line-height: 107%\; font-family: 'Aptos'\,sans-serif\; mso-ascii-the me-font: minor-latin\; mso-fareast-font-family: Aptos\; mso-fareast-theme- font: minor-latin\; mso-hansi-theme-font: minor-latin\; mso-bidi-font-fami ly: 'Times New Roman'\; mso-bidi-theme-font: minor-bidi\; mso-ansi-languag e: EN-US\; mso-fareast-language: EN-US\; mso-bidi-language: AR-SA\;">S M S haiful Alam</span></p>\n<p><img src="https://events.vtools.ieee.org/vtools _ui/media/display/4f142c7c-65c4-46fa-a953-b04777acf92e"></p>\n<p class="Ms oNormal">S M SHAFIUL ALAM (Senior Member\, IEEE) received the B.S. and M.S . degrees in electrical and electronic engineering from Bangladesh Univers ity of Engineering and Technology\, Dhaka\, Bangladesh\, in 2008 and 2011\ , respectively\, and the Ph.D. degree in electrical engineering from Kansa s State University\, Manhattan\, USA\, in 2015. He is currently a Research Scientist with Idaho National Laboratory\, USA\, and the Power and Energy Systems Group\, EES&amp\;T Directorate. His current research interests in clude reliable and sustainable integration of energy systems\, especially the modeling and validation of the operation and control of hybrid energy systems through digital real-time simulation with hardware-in-the-loop tes ting. Additional information on his research activities is available throu gh <a href="https://scholar.google.com/citations?user=Sa5cNhwAAAAJ&amp\;hl =en">Google Scholar</a>.</p>\n<p>&nbsp\;</p>\n<p>&nbsp\;</p>\n<p>&nbsp\;</ p>\n<p>&nbsp\;</p>\n<p>&nbsp\;</p>\n<p>&nbsp\;</p>\n<p>&nbsp\;</p>\n<p>&nb sp\;</p>\n<p>&nbsp\;</p>\n<p>&nbsp\;</p> END:VEVENT END:VCALENDAR