Applications of Digital Signal Processing to Electric Power Quality

Dr. Jaehak Chung
The University of Texas at Austin

Friday, October 6th, 3:00 PM, ENS 302

jchung@ieee.org


Abstract

During the past decade, relatively few DSP methods have been applied to the electric power quality analysis area, e.g., transient power line signals. Thus, in this talk, we present various DSP approaches for several power quality issues such as detection, compression, and classification, etc.

For transient power line signal analysis, we focus on power quality degradation associated with short-time transient power line disturbances. This is because as the number of microelectronic devices increases, short-time power transient signal analysis may be more important than long-time analysis. In general, digital signal processing applications associated with the short-time transient analysis can be found in (1) detection of a transient signal on a power line, (2) compression of the transient for data transmission and archiving at a monitoring station, (3) classification of power disturbance signals, and (4) assessment of power quality for the short-time power disturbance signal. Thus, in this talk, we present digital signal processing algorithms associated with these applications, and demonstrate their better performance using simulations and actual power line transient signals.

Biography

Jaehak Chung received the B.S. and M.S. degree from Department of Electronic Engineering of Yonsei University, Korea in 1988 and 1990, respectively, and earned Ph. D degree at the Department of Electrical and Computer Engineering of The University of Texas at Austin in May 2000. From 1990 to 1995, he worked at Sindo-Ricoh Co. as a senior researcher, and joined Laboratory for Signal Processing Research, Korea for one year. He is currently working at The University of Texas at Austin as a postdoctoral fellow. His interesting research areas are applications of digital signal processing to electrical power quality and wireless communication systems.


A list of Telecommunications and Signal Processing Seminars is available at from the ECE department Web pages under "Seminars". The Web address for the Telecommunications and Signal Processing Seminars is http://signal.ece.utexas.edu/seminars