BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:Asia/Kolkata BEGIN:STANDARD DTSTART:19451014T230000 TZOFFSETFROM:+0630 TZOFFSETTO:+0530 TZNAME:IST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20241116T152405Z UID:F01E4489-7EEA-4FDE-B333-56BD445035D7 DTSTART;TZID=Asia/Kolkata:20241116T190000 DTEND;TZID=Asia/Kolkata:20241116T200000 DESCRIPTION:Overview\n\nThe webinar "Coupled Finite Element Simulations and Magnetic Design for Power Electronics: Approaches and Applications" provi ded attendees with a comprehensive understanding of the role of electromag netic devices in power electronics\, with a particular emphasis on using t he Finite Element Method (FEM) for the simulation and design of critical c omponents like transformers and rotating machines. The event\, hosted virt ually\, attracted 33 participants\, including 28 IEEE members and 4 non-me mbers\, consisting of professionals and academics interested in power elec tronics and magnetic design.\n\nDr. Sai Ram from IIT Dharwad led the sessi on\, focusing on the significance of FEM in optimizing performance during the early design stages\, considering physical factors such as temperature and mechanical stress. The webinar also explored accurate circuit modelin g\, material selection\, and performance optimization of magnetic componen ts in power electronics systems.\n\nKey Topics Covered:\n\n-\nMagnetic Mat erials in Power Electronics\n\n-\nSkin Depth and Frequency: Dr. Sai Ram ex plained how operating frequency affects skin depth\, influencing material selection for magnetic cores. Materials like FESI with high-saturation flu x density were highlighted as optimal choices for reducing core size and i mproving efficiency.\n\n-\nPermeability and Temperature: The speaker discu ssed how permeability changes with frequency and temperature\, particularl y in materials like ferrites and nanocrystalline alloys\, and the impact o f these variations on no-load current and copper losses.\n\n-\nTransformer Design and Material Selection\n\n-\nCore Loss and Efficiency: The importa nce of using materials with high-saturation flux density to achieve compac t and efficient transformers was covered\, though the higher costs of such materials remain a limiting factor.\n\n-\nWeight Reduction: Optimizing co re geometry and magnetic coupling is critical for reducing transformer siz e and weight\, which is particularly beneficial in electric vehicle applic ations.\n\n-\nWinding Design and AC Resistance\n\n-\nSkin and Proximity Ef fects: At high frequencies\, skin and proximity effects increase AC resist ance. To mitigate these effects\, the use of multi-strand conductors was r ecommended\, along with calculating AC resistance factors using Dover’s expression.\n\n-\nMagnetic Integration in Power Converters\n\n-\nRipple Cu rrent Reduction: Coupled inductors were shown to improve converter perform ance by increasing effective inductance\, thereby reducing ripple current. \n\n-\nCore and Copper Loss Reduction: Integration of inductors reduces bo th core volume and copper losses\, improving thermal efficiency and overal l system performance.\n\n-\nGate Drive Circuits for Silicon Carbide (SiC) MOSFETs\n\n-\nThe use of low-leakage pulse transformers (PTs) to improve g ate waveforms\, reduce switching losses\, and enhance system stability in high-frequency applications involving SiC-based systems was highlighted.\n \n-\nMagnetic Materials for Resonant Converters and Induction Heating\n\n- \nFor resonant converters used in induction heating\, high-saturation\, hi gh-permeability materials with low core loss and high thermal conductivity were emphasized as key to improving system efficiency and thermal managem ent.\n\nKey Takeaways:\n\n-\nMaterial Selection: High-performance material s like ferrites and nanocrystalline alloys improve efficiency and minimize losses\, but require balancing cost and application needs.\n\n-\nMagnetic Integration: The integration of coupled inductors in power converters enh ances performance by reducing losses and improving thermal efficiency.\n\n -\nWinding Design: Proper winding design is essential for minimizing skin and proximity effects in high-frequency applications\, which directly affe cts AC resistance and overall system efficiency.\n\n-\nHigh-Frequency Appl ications: For applications like induction heating and SiC-based systems\, materials with high B-saturation and low core loss are crucial for achievi ng high efficiency and stability.\n\nSpeaker(s): Sairm\, \n\nAgenda: \n- I ntroduction to the event and speaker (5 minutes)\n- Main presentation by D r. Sai Ram (50 minutes)\n- Q&A session (10 minutes)\n- Vote of Thanks\n\nV irtual: https://events.vtools.ieee.org/m/444889 LOCATION:Virtual: https://events.vtools.ieee.org/m/444889 ORGANIZER:tripura.pidikiti@ieee.org SEQUENCE:35 SUMMARY:IES Chapter Webinar on " Coupled Finite Element Simulations and Mag netic Design for Power Electronics: Approaches and Applications " URL;VALUE=URI:https://events.vtools.ieee.org/m/444889 X-ALT-DESC:Description: <br /><h3 dir="ltr">Overview</h3>\n<p dir="ltr">The webinar "Coupled Finite Element Simulations and Magnetic Design for Power Electronics: Approaches and Applications" provided attendees with a compr ehensive understanding of the role of electromagnetic devices in power ele ctronics\, with a particular emphasis on using the Finite Element Method ( FEM) for the simulation and design of critical components like transformer s and rotating machines. The event\, hosted virtually\, attracted 33 parti cipants\, including 28 IEEE members and 4 non-members\, consisting of prof essionals and academics interested in power electronics and magnetic desig n.</p>\n<p dir="ltr">Dr. Sai Ram from IIT Dharwad led the session\, focusi ng on the significance of FEM in optimizing performance during the early d esign stages\, considering physical factors such as temperature and mechan ical stress. The webinar also explored accurate circuit modeling\, materia l selection\, and performance optimization of magnetic components in power electronics systems.</p>\n<h4 dir="ltr">Key Topics Covered:</h4>\n<ol>\n< li dir="ltr" aria-level="1">\n<p dir="ltr" role="presentation">Magnetic Ma terials in Power Electronics</p>\n</li>\n<ul>\n<li dir="ltr" aria-level="2 ">\n<p dir="ltr" role="presentation">Skin Depth and Frequency: Dr. Sai Ram explained how operating frequency affects skin depth\, influencing materi al selection for magnetic cores. Materials like FESI with high-saturation flux density were highlighted as optimal choices for reducing core size an d improving efficiency.</p>\n</li>\n<li dir="ltr" aria-level="2">\n<p dir= "ltr" role="presentation">Permeability and Temperature: The speaker discus sed how permeability changes with frequency and temperature\, particularly in materials like ferrites and nanocrystalline alloys\, and the impact of these variations on no-load current and copper losses.</p>\n</li>\n</ul>\ n<li dir="ltr" aria-level="1">\n<p dir="ltr" role="presentation">Transform er Design and Material Selection</p>\n</li>\n<ul>\n<li dir="ltr" aria-leve l="2">\n<p dir="ltr" role="presentation">Core Loss and Efficiency: The imp ortance of using materials with high-saturation flux density to achieve co mpact and efficient transformers was covered\, though the higher costs of such materials remain a limiting factor.</p>\n</li>\n<li dir="ltr" aria-le vel="2">\n<p dir="ltr" role="presentation">Weight Reduction: Optimizing co re geometry and magnetic coupling is critical for reducing transformer siz e and weight\, which is particularly beneficial in electric vehicle applic ations.</p>\n</li>\n</ul>\n<li dir="ltr" aria-level="1">\n<p dir="ltr" rol e="presentation">Winding Design and AC Resistance</p>\n</li>\n<ul>\n<li di r="ltr" aria-level="2">\n<p dir="ltr" role="presentation">Skin and Proximi ty Effects: At high frequencies\, skin and proximity effects increase AC r esistance. To mitigate these effects\, the use of multi-strand conductors was recommended\, along with calculating AC resistance factors using Dover &rsquo\;s expression.</p>\n</li>\n</ul>\n<li dir="ltr" aria-level="1">\n<p dir="ltr" role="presentation">Magnetic Integration in Power Converters</p >\n</li>\n<ul>\n<li dir="ltr" aria-level="2">\n<p dir="ltr" role="presenta tion">Ripple Current Reduction: Coupled inductors were shown to improve co nverter performance by increasing effective inductance\, thereby reducing ripple current.</p>\n</li>\n<li dir="ltr" aria-level="2">\n<p dir="ltr" ro le="presentation">Core and Copper Loss Reduction: Integration of inductors reduces both core volume and copper losses\, improving thermal efficiency and overall system performance.</p>\n</li>\n</ul>\n<li dir="ltr" aria-lev el="1">\n<p dir="ltr" role="presentation">Gate Drive Circuits for Silicon Carbide (SiC) MOSFETs</p>\n</li>\n<ul>\n<li dir="ltr" aria-level="2">\n<p dir="ltr" role="presentation">The use of low-leakage pulse transformers (P Ts) to improve gate waveforms\, reduce switching losses\, and enhance syst em stability in high-frequency applications involving SiC-based systems wa s highlighted.</p>\n</li>\n</ul>\n<li dir="ltr" aria-level="1">\n<p dir="l tr" role="presentation">Magnetic Materials for Resonant Converters and Ind uction Heating</p>\n</li>\n<ul>\n<li dir="ltr" aria-level="2">\n<p dir="lt r" role="presentation">For resonant converters used in induction heating\, high-saturation\, high-permeability materials with low core loss and high thermal conductivity were emphasized as key to improving system efficienc y and thermal management.</p>\n</li>\n</ul>\n</ol>\n<p dir="ltr">&nbsp\;</ p>\n<h3 dir="ltr">Key Takeaways:</h3>\n<ol>\n<li dir="ltr" aria-level="1"> \n<p dir="ltr" role="presentation">Material Selection: High-performance ma terials like ferrites and nanocrystalline alloys improve efficiency and mi nimize losses\, but require balancing cost and application needs.</p>\n</l i>\n<li dir="ltr" aria-level="1">\n<p dir="ltr" role="presentation">Magnet ic Integration: The integration of coupled inductors in power converters e nhances performance by reducing losses and improving thermal efficiency.</ p>\n</li>\n<li dir="ltr" aria-level="1">\n<p dir="ltr" role="presentation" >Winding Design: Proper winding design is essential for minimizing skin an d proximity effects in high-frequency applications\, which directly affect s AC resistance and overall system efficiency.</p>\n</li>\n<li dir="ltr" a ria-level="1">\n<p dir="ltr" role="presentation">High-Frequency Applicatio ns: For applications like induction heating and SiC-based systems\, materi als with high B-saturation and low core loss are crucial for achieving hig h efficiency and stability.</p>\n</li>\n</ol>\n<p>&nbsp\;</p>\n<p class="M soNormalCxSpMiddle" style="margin-bottom: .0001pt\; mso-add-space: auto\; text-align: justify\; line-height: 21.0pt\; mso-line-height-rule: exactly\ ;">&nbsp\;</p>\n<p class="MsoNormalCxSpMiddle" style="mso-add-space: auto\ ; text-align: justify\; line-height: 150%\; margin: 0cm 0cm .0001pt 17.85p t\;"><span lang="EN-US" style="font-size: 12.0pt\; line-height: 150%\; fon t-family: 'Aptos Narrow'\,sans-serif\; color: blue\;">&nbsp\;</span></p><b r /><br />Agenda: <br /><ul>\n<li>Introduction to the event and speaker (5 minutes)</li>\n<li>Main presentation by Dr. Sai Ram (50 minutes)</li>\n<l i>Q&amp\;A session (10 minutes)</li>\n<li>Vote of Thanks</li>\n</ul> END:VEVENT END:VCALENDAR