{"id":70429,"date":"2025-09-02T08:22:04","date_gmt":"2025-09-02T12:22:04","guid":{"rendered":"https:\/\/blogarchive.utc.edu\/news\/?p=70429"},"modified":"2025-09-14T09:56:17","modified_gmt":"2025-09-14T13:56:17","slug":"utc-tva-team-powers-up-global-conference-with-prize-winning-research","status":"publish","type":"post","link":"https:\/\/blogarchive.utc.edu\/news\/2025\/09\/utc-tva-team-powers-up-global-conference-with-prize-winning-research\/","title":{"rendered":"UTC-TVA team powers up global conference with prize-winning research"},"content":{"rendered":"
\"Julio

Julio Gonzalez, left, Dr. Abdel Karrar, Mark Bowman and Andrew Adams stand with their IEEE Prize Paper award at the recent IEEE Power & Energy Society General Meeting. Photo credit: Kim Casteel Bowman.<\/p><\/div>\n

A research collaboration between the University of Tennessee at Chattanooga and the Tennessee Valley Authority earned international recognition this summer from the Institute of Electrical and Electronics Engineers (IEEE), the world\u2019s largest technical professional organization for advancing technology.<\/p>\n

The UTC-TVA research team\u2019s paper, \u201cOffsite Power Grid Strength Determination for Nuclear Power Plants: Improved Calculations and Practical Implementation\u201d\u2014co-authored by Dr. Abdel Karrar, professor of electrical engineering and associate dean of the UTC College of Engineering and Computer Science; UTC undergraduate students Andrew Adams and Julio Gonzalez; and Mark Bowman, senior program manager of Power System Analysis at TVA\u2014was selected as one of four Prize Conference Papers at the 2025 IEEE Power & Energy Society General Meeting (PES GM) in Austin, Texas.<\/p>\n

Out of more than 1,600 papers submitted to the IEEE PES GM, considered the largest global forum for power engineers, only about 5% were chosen as Best Papers. From that elite group, four were selected as Prize Papers\u2014one from each of the conference\u2019s major technical tracks.<\/p>\n

For Karrar and Bowman, the recognition in Austin marked a rare professional milestone: their second co-authored IEEE PES GM Prize Paper. Their first shared honor came at the 2016 conference in Boston.<\/p>\n

\u201cIt\u2019s one thing to have your work accepted to the IEEE Power & Energy Society General Meeting, but to be chosen as one of four prize papers in the world is an entirely different level,\u201d said Karrar, a member of the UTC faculty since 2014. \u201cThis premier conference brings together practicing power engineers and academics from all over the world who teach and research power systems, and we went in and came out on top. We were ecstatic.\u201d<\/p>\n

The project stemmed from a long-running research partnership between UTC and TVA.<\/p>\n

\u201cThis kind of research model really works,\u201d Bowman said. \u201cWe collaborate on real problems with researchers and students. The result creates an ecosystem where innovation can happen.\u201d<\/p>\n

The research addressed a significant challenge in the nuclear power industry: how to measure the strength of the electrical grid\u2014technically known as grid impedance\u2014when real-time visibility is lost due to severe weather or emergency conditions.<\/p>\n

As Karrar and Bowman explained, under normal operations, grid operators use supervisory control and data acquisition systems to provide nuclear power plants with continuous updates on grid health. If those systems fail or communications go down, power plant operators must still determine whether the grid is strong enough to safely supply offsite power during emergency shutdown or cooling events.<\/p>\n

\u201cLosing visibility of the grid is very concerning to a nuclear plant,\u201d Bowman said. \u201cHaving a strong grid supply is so important to reactor safety that the nuclear plant must shut down until grid strength can be determined.\u201d<\/p>\n

The team developed a method for estimating grid strength based on localized measurements taken at the power plant itself. The approach used simulations of normal load fluctuations\u2014\u201cgentle nudges,\u201d as Bowman described them\u2014as a way to gauge whether the grid was capable of supporting critical safety loads.<\/p>\n

\"The<\/p>\n

The research was conducted using the College of Engineering and Computer Science\u2019s<\/strong><\/a> Smart Grid Lab and its real-time digital simulator, which mimics the behavior of an actual nuclear power plant auxiliary power system under a variety of grid conditions.<\/p>\n

\u201cThere are offline simulations that solve equations without time pressure,\u201d Karrar said, \u201cbut in our lab, we use real-time simulation\u2014meaning every second of simulated time corresponds to an actual second. It generates waveforms just like those in the real grid. That allows us to test real hardware in a loop with the simulation.\u201d<\/p>\n

TVA contributed equipment, software and testing support throughout the project. The simulator was initially developed to test and validate monitoring systems in advance of field implementation, but this project expanded its role to include the grid strength estimation model.<\/p>\n

\u201cIs this feasible? That was the question,\u201d Bowman said. \u201cCan we really estimate grid strength accurately from the plant\u2019s point of view when upstream visibility is lost? The answer was yes. No one had ever tried this before and the conference saw something novel in that.\u201d<\/p>\n

For Gonzalez, a senior electrical engineering major graduating from UTC in December, participating in the project\u2014and attending the IEEE PES GM in person\u2014has quickly become an unforgettable experience.<\/p>\n

\u201cIt was incredible. I would\u2019ve never thought going into college I\u2019d be a part of something that would be recognized nationally, if not internationally,\u201d said Gonzalez, who grew up in northwest Georgia. \u201cPeople from Hong Kong were there. Brazil. All the European countries.<\/p>\n

\u201cIt is crazy to think that out of everyone in the world who submitted a paper, ours was chosen.\u201d<\/p>\n

Gonzalez helped build motor simulation models and processed data as part of the team\u2019s test scenarios. He said he didn\u2019t fully grasp the magnitude of the work until other industry professionals at the conference started congratulating the team.<\/p>\n

\u201cI was just excited to be chosen for the research in the first place. I didn\u2019t even know what we were building would turn into something like this,\u201d he said.<\/p>\n

The recognition reaffirmed what Gonzalez had already learned at UTC. He didn\u2019t have to leave Chattanooga to get a first-class engineering education.<\/p>\n

\u201cHave you ever watched the movie Monsters University?\u201d Gonzalez asked with a laugh. \u201cIn the movie, the students all go to Monsters University because they want to work at Monsters Inc., which generates all of the power.<\/p>\n

\u201cAs students, that\u2019s kind of how we look at it: UTC is like a mini Monsters University and TVA is like Monsters Inc. generating power. We have world-class industry leaders right here locally. You don\u2019t have to go across the world to get that kind of education.\u201d<\/p>\n

Adams, a senior electrical engineering major and a 2022 graduate of Chattanooga Christian School, joined Gonzalez in handling much of the project\u2019s simulation work.<\/p>\n

\u201cThe main part that Julio and I were working on was the simulation,\u201d Adams said. \u201cThere was obviously a theory behind the work, but we weren\u2019t sure if it was feasible.<\/p>\n

\u201cJulio and I were working in MATLAB and Simulink; it was the Watts Bar Nuclear Power Plant, fully simulated inside of Simulink. We ran different tests based on the theory to see if our method was feasible.\u201d<\/p>\n

When asked how he would explain the project to someone unfamiliar with power engineering, Adams pointed to an analogy Bowman had shared with him.<\/p>\n

\u201cIt\u2019s like trying to measure grains of sand on a springboard,\u201d Adams said. \u201cIn order to shut down a nuclear plant, you have to have power\u2014and if you don\u2019t know if you have capable power, then your power plant is at risk.<\/p>\n

\u201cIf I were to explain it to someone that doesn\u2019t know about power, I\u2019d probably say, \u2018We\u2019re just trying our best to keep the world safe.\u2019\u201d<\/p>\n

Karrar said the success of the project reflects the broader strategy UTC\u2019s College of Engineering and Computer Science has adopted to expose students to real-world engineering problems while building deep connections with industry partners.<\/p>\n

\u201cWe\u2019re always trying to get students excited about power systems,\u201d he explained, \u201cand this is one of the ways we do it. We bring real problems into the classroom and into the lab. We bring in professionals from TVA, EPB, General Electric and consulting firms to talk directly to students and show them how the knowledge they\u2019re learning applies in the field.\u201d<\/p>\n

Bowman, who has worked in the nuclear power industry for more than 35 years, called the UTC partnership one of the most unique and valuable collaborations he\u2019s been part of.<\/p>\n

\u201cThere\u2019s freedom in this kind of work. You\u2019re not on a strict schedule with deliverables. You can brainstorm, throw ideas around and evolve something over time,\u201d he said. \u201cAnd when you finally get to present it and it gets recognized on a stage like this? It\u2019s just fun and exciting. That\u2019s what it\u2019s like to work with UTC.\u201d<\/p>\n

Learn more<\/h4>\n

Visit UTC<\/a><\/p>\n

UTC College of Engineering and Computer Science<\/a><\/p>\n

Electrical Engineering<\/a><\/p>\n

How to apply<\/a><\/p>\n

\"Photo<\/p>\n","protected":false},"excerpt":{"rendered":"

A research collaboration between the University of Tennessee at Chattanooga and the Tennessee Valley Authority earned international recognition this summer from the Institute of Electrical and Electronics Engineers (IEEE), the world\u2019s largest technical professional organization for advancing technology.<\/p>\n

Continue Reading <\/a><\/span><\/p>\n","protected":false},"author":1493,"featured_media":70431,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","_ef_editorial_meta_date_first-draft-date":"","_ef_editorial_meta_paragraph_assignment":"","_ef_editorial_meta_checkbox_needs-photo":"","_ef_editorial_meta_number_word-count":"","_ef_editorial_meta_checkbox_slider":"","_ef_editorial_meta_checkbox_featurette":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[48048,70,123864,59,3,7712,52,8244,64,48007,661,124930],"tags":[125863,125908,122305,123827,123826,125909,99322,125907,123828,125864,124776,123829,12731,998],"class_list":{"0":"post-70429","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-academics","8":"category-advancement-and-alumni","9":"category-college-of-engineering-and-computer-science","10":"category-community","11":"category-electrical-engineering","12":"category-faculty-and-staff","13":"category-graduate-school","14":"category-honors-and-awards","15":"category-news","16":"category-research-academics","17":"category-students","18":"category-transfer-students","19":"tag-abdel-karrar","20":"tag-andrew-adams","21":"tag-chattanooga-state-community-college","22":"tag-creating-the-mocs-experience","23":"tag-cultivating-a-culture-of-innovation","24":"tag-ieee-power-energy-society-general-meeting","25":"tag-institute-of-electrical-and-electronics-engineers","26":"tag-julio-gonzalez","27":"tag-leveraging-our-special-place-as-chattanoogas-university","28":"tag-mark-bowman","29":"tag-mocs-learn-mocs-do-mocs-lead","30":"tag-operating-with-excellence","31":"tag-tennessee-valley-authority","32":"tag-tva","33":"entry"},"yoast_head":"\nUTC-TVA team powers up global conference with prize-winning research | UTC News Archive: Jul 2007 - 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