BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:US/Pacific BEGIN:DAYLIGHT DTSTART:20230312T030000 TZOFFSETFROM:-0800 TZOFFSETTO:-0700 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:PDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20221106T010000 TZOFFSETFROM:-0700 TZOFFSETTO:-0800 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:PST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20221210T013026Z UID:B2B8AE93-BCC2-4A52-A778-717DFF48AD5F DTSTART;TZID=US/Pacific:20221208T110000 DTEND;TZID=US/Pacific:20221208T120000 DESCRIPTION:The common mode (CM) voltage generated by a switching power con verter yields unwanted currents to circulate in the ground paths\, trippin g ground faults relays\, accelerating motor bearing aging\, and producing electromagnetic interference (EMI). Typical differential mode (DM) models of power converters do not account for CM paths and currents\, so models i ncluding parasitic components and CM voltages must be used to predict CM E MI. In this presentation CM modeling and analysis will be highlighted and popular CM EMI mitigation methods\, including passive filters\, active fil ters\, and novel power converter topologies will be briefly summarized.\n\ nThe second part of the presentation will focus on novel CM voltage elimin ation methods based on a game-changing shift from pulse width modulation ( PWM) to pulse density modulation (PDM) for grid-forming and grid-following inverters. Rapid prototyping of three-phase four-leg inverters\, built wi th wide bandgap devices (WBG)\, will also be presented to demonstrate the elimination of the CM voltage at the switching frequency and significantly reducing the size of the CM passive filters required to meet the conducte d emission limits in MIL-STD-461G.\n\nSpeaker(s): Dr. Giovanna Oriti\, \n\ nVirtual: https://events.vtools.ieee.org/m/329518 LOCATION:Virtual: https://events.vtools.ieee.org/m/329518 ORGANIZER:kishan.g.joshi@gmail.com SEQUENCE:3 SUMMARY:Common Mode EMI Analysis and Mitigation Methods in Three-Phase Inve rters URL;VALUE=URI:https://events.vtools.ieee.org/m/329518 X-ALT-DESC:Description: <br /><p data-key="64"><span data-key="65">The comm on mode (CM) voltage generated by a switching power converter yields unwan ted currents to circulate in the ground paths\, tripping ground faults rel ays\, accelerating motor bearing aging\, and producing electromagnetic int erference (EMI). Typical differential mode (DM) models of power converters do not account for CM paths and currents\, so models including parasitic components and CM voltages must be used to predict CM EMI. In this present ation CM modeling and analysis will be highlighted and popular CM EMI miti gation methods\, including passive filters\, active filters\, and novel po wer converter topologies will be briefly summarized. </span></p>\n<p data- key="66" data-slate-fragment="JTdCJTIyb2JqZWN0JTIyJTNBJTIyZG9jdW1lbnQlMjIl MkMlMjJkYXRhJTIyJTNBJTdCJTdEJTJDJTIybm9kZXMlMjIlM0ElNUIlN0IlMjJvYmplY3QlMj IlM0ElMjJibG9jayUyMiUyQyUyMnR5cGUlMjIlM0ElMjJwYXJhZ3JhcGglMjIlMkMlMjJkYXRh JTIyJTNBJTdCJTIyY2xhc3NOYW1lJTIyJTNBbnVsbCU3RCUyQyUyMm5vZGVzJTIyJTNBJTVCJT dCJTIyb2JqZWN0JTIyJTNBJTIydGV4dCUyMiUyQyUyMmxlYXZlcyUyMiUzQSU1QiU3QiUyMm9i amVjdCUyMiUzQSUyMmxlYWYlMjIlMkMlMjJ0ZXh0JTIyJTNBJTIyVGhlJTIwY29tbW9uJTIwbW 9kZSUyMChDTSklMjB2b2x0YWdlJTIwZ2VuZXJhdGVkJTIwYnklMjBhJTIwc3dpdGNoaW5nJTIw cG93ZXIlMjBjb252ZXJ0ZXIlMjB5aWVsZHMlMjB1bndhbnRlZCUyMGN1cnJlbnRzJTIwdG8lMj BjaXJjdWxhdGUlMjBpbiUyMHRoZSUyMGdyb3VuZCUyMHBhdGhzJTJDJTIwdHJpcHBpbmclMjBn cm91bmQlMjBmYXVsdHMlMjByZWxheXMlMkMlMjBhY2NlbGVyYXRpbmclMjBtb3RvciUyMGJlYX JpbmclMjBhZ2luZyUyQyUyMGFuZCUyMHByb2R1Y2luZyUyMGVsZWN0cm9tYWduZXRpYyUyMGlu dGVyZmVyZW5jZSUyMChFTUkpLiUyMFR5cGljYWwlMjBkaWZmZXJlbnRpYWwlMjBtb2RlJTIwKE RNKSUyMG1vZGVscyUyMG9mJTIwcG93ZXIlMjBjb252ZXJ0ZXJzJTIwZG8lMjBub3QlMjBhY2Nv dW50JTIwZm9yJTIwQ00lMjBwYXRocyUyMGFuZCUyMGN1cnJlbnRzJTJDJTIwc28lMjBtb2RlbH MlMjBpbmNsdWRpbmclMjBwYXJhc2l0aWMlMjBjb21wb25lbnRzJTIwYW5kJTIwQ00lMjB2b2x0 YWdlcyUyMG11c3QlMjBiZSUyMHVzZWQlMjB0byUyMHByZWRpY3QlMjBDTSUyMEVNSS4lMjAlMj BJbiUyMHRoaXMlMjBwcmVzZW50YXRpb24lMjBDTSUyMG1vZGVsaW5nJTIwYW5kJTIwYW5hbHlz aXMlMjB3aWxsJTIwYmUlMjBoaWdobGlnaHRlZCUyMGFuZCUyMHBvcHVsYXIlMjBDTSUyMEVNSS UyMG1pdGlnYXRpb24lMjBtZXRob2RzJTJDJTIwaW5jbHVkaW5nJTIwcGFzc2l2ZSUyMGZpbHRl cnMlMkMlMjBhY3RpdmUlMjBmaWx0ZXJzJTJDJTIwYW5kJTIwbm92ZWwlMjBwb3dlciUyMGNvbn ZlcnRlciUyMHRvcG9sb2dpZXMlMjB3aWxsJTIwYmUlMjBicmllZmx5JTIwc3VtbWFyaXplZC4l MjAlNUNuJTIyJTJDJTIybWFya3MlMjIlM0ElNUIlNUQlN0QlNUQlN0QlNUQlN0QlMkMlN0IlMj JvYmplY3QlMjIlM0ElMjJibG9jayUyMiUyQyUyMnR5cGUlMjIlM0ElMjJwYXJhZ3JhcGglMjIl MkMlMjJkYXRhJTIyJTNBJTdCJTIyY2xhc3NOYW1lJTIyJTNBbnVsbCU3RCUyQyUyMm5vZGVzJT IyJTNBJTVCJTdCJTIyb2JqZWN0JTIyJTNBJTIydGV4dCUyMiUyQyUyMmxlYXZlcyUyMiUzQSU1 QiU3QiUyMm9iamVjdCUyMiUzQSUyMmxlYWYlMjIlMkMlMjJ0ZXh0JTIyJTNBJTIyVGhlJTIwc2 Vjb25kJTIwcGFydCUyMG9mJTIwdGhlJTIwcHJlc2VudGF0aW9uJTIwd2lsbCUyMGZvY3VzJTIw b24lMjBub3ZlbCUyMENNJTIwdm9sdGFnZSUyMGVsaW1pbmF0aW9uJTIwbWV0aG9kcyUyMGJhc2 VkJTIwb24lMjBhJTIwZ2FtZS1jaGFuZ2luZyUyMHNoaWZ0JTIwZnJvbSUyMHB1bHNlJTIwd2lk dGglMjBtb2R1bGF0aW9uJTIwKFBXTSklMjB0byUyMHB1bHNlJTIwZGVuc2l0eSUyMG1vZHVsYX Rpb24lMjAoUERNKSUyMGZvciUyMGdyaWQtZm9ybWluZyUyMGFuZCUyMGdyaWQtZm9sbG93aW5n JTIwaW52ZXJ0ZXJzLiUyMFJhcGlkJTIwcHJvdG90eXBpbmclMjBvZiUyMHRocmVlLXBoYXNlJT IwZm91ci1sZWclMjBpbnZlcnRlcnMlMkMlMjBidWlsdCUyMHdpdGglMjB3aWRlJTIwYmFuZGdh cCUyMGRldmljZXMlMjAoV0JHKSUyQyUyMHdpbGwlMjBhbHNvJTIwYmUlMjBwcmVzZW50ZWQlMj B0byUyMGRlbW9uc3RyYXRlJTIwdGhlJTIwZWxpbWluYXRpb24lMjBvZiUyMHRoZSUyMENNJTIw dm9sdGFnZSUyMGF0JTIwdGhlJTIwc3dpdGNoaW5nJTIwZnJlcXVlbmN5JTIwYW5kJTIwc2lnbm lmaWNhbnRseSUyMHJlZHVjaW5nJTIwdGhlJTIwc2l6ZSUyMG9mJTIwdGhlJTIwQ00lMjBwYXNz aXZlJTIwZmlsdGVycyUyMHJlcXVpcmVkJTIwdG8lMjBtZWV0JTIwdGhlJTIwY29uZHVjdGVkJT IwZW1pc3Npb24lMjBsaW1pdHMlMjBpbiUyME1JTC1TVEQtNDYxRy4lMjAlMjIlMkMlMjJtYXJr cyUyMiUzQSU1QiU1RCU3RCU1RCU3RCU1RCU3RCU1RCU3RA=="><span data-key="67">The second part of the presentation will focus on novel CM voltage elimination methods based on a game-changing shift from pulse width modulation (PWM) to pulse density modulation (PDM) for grid-forming and grid-following inve rters. Rapid prototyping of three-phase four-leg inverters\, built with wi de bandgap devices (WBG)\, will also be presented to demonstrate the elimi nation of the CM voltage at the switching frequency and significantly redu cing the size of the CM passive filters required to meet the conducted emi ssion limits in MIL-STD-461G. </span></p> END:VEVENT END:VCALENDAR