Home  »  News  »  Press Releases

Qingxin Shi, University of Tennessee, gives CURENT Power and Energy Seminar on Friday, Oct. 25th. 

Qingxin Shi, University of Tennessee, will give the CURENT Power and Energy Seminar on Friday, Oct. 25th. Dr. Shi will discuss Electric Power Quality: Concept Overview and Methods for Improvement. The seminar will be held in MHK 404 from 12:20 pm - 1:10 PM. 

Time: Friday, October 25th, 12:20 PM - 1:10 PM EST

Location: Min H. Kao Building, Room 404

This seminar will be available through ZOOM.  See info near bottom of this email.

Presenter: Dr. Qingxin Shi, University of Tennessee

Title: Electric Power Quality: Concept Overview and Methods for Improvement

The electric power system is always subjected to a wide variety of disturbances. Power quality is a broad concept. It refers to any disturbance/change in the power (voltage, current, or frequency) that interferes with normal operation of electrical equipment. It is the susceptibility of the end-use equipment that defines the necessary level of power quality. The IEEE/IEC standards define around 20 power quality indices. The major power quality indices can be classified into voltage magnitude, voltage waveform and frequency indices. The voltage magnitude includes the voltage swell/sag and over-voltage/under voltage; the voltage waveform includes harmonics and transients; while frequency includes over-frequency and under-frequency disturbances. This talk will provide a high-level review on the concept of major power quality issues and the existing approaches to improving the power quality. In particular, the relations between different power quality issues are also discussed.

Bio: Qingxin Shi received  his B.S. and M.Sc. degrees at Zhejiang University, China, and the University of Alberta, Canada, in 2011 and 2014, respectively. He received his Ph.D. degree at the University of Tennessee in Knoxville, TN in 2019. He is currently working as a research staff member for CURENT. His research interest includes power quality, demand response and distribution system resilience.

Zoom Information:

Join from PC, Mac, Linux, iOS or Android: https://tennessee.zoom.us/j/608630490

Or iPhone one-tap (US Toll): +16468769923,608630490# or +16699006833,608630490#

Or Telephone: Dial: +1 646 876 9923 (US Toll) +1 669 900 6833 (US Toll) Meeting ID: 608 630 490

International numbers available: https://zoom.us/u/aFK5Bq5SR

Or an H.323/SIP room system: H.323: (US West) or (US East) Meeting ID: 608 630 490  

SIP: 608630490@zoomcrc.com

Upcoming Seminars

Friday, November 1st - Wenting Li, Rensselaer Polytechnic Institute -  Analysis Algorithms in Power Grids

Friday,  November 8th - No seminar (Site Visit)

Friday, November 15th - Dr. Sid Suryanarayanan, Colorado State University - ToU, or not ToU, that is the question - Maximizing Wind Energy Usage in Regions with Electric Vehicle Fleets

Friday, November 22nd - TBA

Friday, November 29th - No seminar (Thanksgiving)

See the CURENT calendar for more news and seminars