Register Today For the New FREEDM Webinar Series

Join us September 24, 2019  for our new technical webinar series designed to share the research we’re doing to lead the electrification revolution.

There are two options for participation: in-person (on the NC State campus) or via conference call.

Please complete this short registration form to indicate your interest, and we will send you location information and/or log-in instructions in a separate email. Pizza and drinks will be provided for those that participate in person. There is no cost to attend.


Low Cost Resonance Damping for Grid-tied Converters

Grid connected power electronic converters, such as industrial motor drives and PV inverters, require filters to reduce harmonics. LCL filters are a cost effective means to meet the required standards for total harmonic distortion, but they require an explicit resonance damping strategy. Passive (resistive) damping methods are lossy and expensive, and active damping methods require additional sensors which also increase system costs. This presentation will describe recent work by FREEDM and Danfoss to develop an observer-based strategy for active damping that does not require additional sensors beyond those already used for commercial converter applications. Ph.D. candidate M A Awal will describe how the system works and provide some hardware testing results.

This program runs for 45 minutes, with 15 minutes provided for Q&A. Total running time is one hour. The material will be recorded.