About:

Harmonics in electrical power systems had its season at the forefront of “technical topics of the day”. But even though its dominance in publications has waned, harmonics issues persist and are ever growing. The increasing use of non-linear loads has made the modeling and analysis of power system harmonics even more relevant for today’s electrical power system designs and upgrades.

​​​​​​​In this webinar, we will cover several key aspects of modeling electrical power system harmonics. This will include fundamental harmonic principles and superposition, behavior of electrical components, simulation methods, analysis tools and a live presentation of how an analysis should proceed.

This session will not focus on harmonic filtering or mitigation, but will lay the foundation for knowing how to model systems so that mitigation methods can be simulated, benchmarked and vetted before procurement and installation

PRESENTER:

Christopher Duffey is a Senior Technical Staff engineer at American Superconductor (AMSC) and is a licensed professional engineer in Oregon. Chris joined AMSC in April of 2022 and is a member of the AMSC network planning team, where he performs system analysis for the D-VAR and D-VAR VVO STATCOM, Neeltran rectifier and NEPSI harmonic filter product lines.

​​​​​​​Chris, a 38-year veteran power system engineer, cut his teeth at Power Technologies, Inc. in Schenectady, New York starting in 1985. He was introduced to power system harmonics while working for Ray P. Stratford, co-chair of the IEEE 519 Standard’s 1992 update and was the secretary of that same document. In 1995 he took a position at Electrical Systems Analysis in Clackamas, Oregon (makers of the EasyPower software), where he performed measurements, failure analysis, consulting, teaching, and maintained and enhanced the EasyPower software engine. Chris specified all features of the EasyPower harmonics tool, and specified and coded the engine for EasyPower’s dynamic stability tool. During a time of self-employment between 2014 and 2022, Chris continued power system consulting and analysis, and developed Acacia Power Solution’s Advanced Generator Monitor (AGM) and Advanced Motor Monitor (AMM).