Interconnection of Inverter-Based Resources – Power Quality Aspects

Presented by: Wilsun Xu 

The worldwide acceptance of renewable energies has led to the emergence of a new type of generators in power systems - the Inverter-Based Resources (IBRs). The IBRs send power into the grid through power electronic interfaces. As a result, there are concerns on IBR’s potential power quality impact especially in the form of harmonic distortions on the interconnected power systems. The IEEE Std. 2800-2022, for example, recommends performing harmonic impact evaluation for any transmission-connected IBR projects. This webinar is to share the latest research findings on how to model IBRs for harmonic studies and the actual industry experiences of conducting IBR interconnection studies. The topics include 1) Characteristics and responses of IBRs at harmonic frequencies; 2) Modeling of IBRs per the requirement of IEEE Std. 2800; 3) The  types of harmonics studies for IBR interconnection projects; and 4) Examples of actual industry interconnection studies. In addition, the webinar will cover (briefly) other power quality issues of IBRs. This webinar is also an opportunity for the presenters to receive industry input as they are actively engaged in the development of IEEE P2800.2 “Recommended Practice for Test and Verification Procedures for Inverter-based Resources (IBRs) Interconnecting with Bulk Power Systems”

Click here to stream! 

Download slides!


1) Utility engineers and consulting engineers dealing with IBR interconnection studies and power quality issues.

2) Owners, developers, and engineers of renewable power projects.

3) Engineers of IBR manufacturers.

4) Power quality researchers.


WilsunXu photoWilsun Xu is currently a professor at the University of Alberta, Canada. He obtained PhD from the University of British Columbia, Canada, in 1989 and worked in BC Hydro of Vancouver, Canada for 7 years before joined the University in 1996. Dr.  Xu has been conducting power quality research, consulting and education over 30 years and has helped several utility companies to establish harmonic-related interconnection standards. He led the Harmonics Modeling and Simulation Task Force of PES between 1996 and 2001, contributed to the development of IEEE Std. 519, and was elevated to IEEE fellow for contributions to power system harmonics research. At present, Dr. Xu is actively participating in the activities of the IEEE P2800.2 workgroup as its PQTF member. 


Tags & Topics for This Webinar:

Inverter-based Resources; Power quality; Harmonics; Interconnection studies




For any questions, please contact Phyllis Caputo at

To view previous webinars on-demand, visit the IEEE Smart Grid Resource Center


Become a Presenter

If you'd like to be a presenter, please fill out this form.