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Dr. David Gao, University of Denver, Gives CURENT Power and Energy Seminar on Friday, October 9

Dr. David Gao, University of Denver, will give the CURENT Power and Energy Seminar (ECE 496 and 691) on Friday, October 9, from from 12:20 pm to 1:10 pm. The seminar will be available via ZOOM. The ZOOM link will be sent to CURENT students and faculty through email. Contact Wendy if you need a link.

Presenter: Dr. David Gao, Full Professor and Director of Renewable Energy and Power Electronics Laboratory, University of Denver

Title: "Power System Frequency Control and Stability Analysis with Increasing Renewable Energy Penetration Level" 

Abstract: With the ever-increasing penetration level of renewable energy generation units and the replacement of traditional synchronous generators, the issues associated with the deteriorated performance of power system frequency regulation and potential grid frequency instability become more significant. In this seminar, the inertial control algorithms are discussed and analyzed for a renewable energy generation unit. The concept and design of Virtual Synchronous Generator are comprehensively discussed in order to enhance small-signal stability and frequency stability of power systems with high renewable energy penetration level. By imitating the mathematical model of a synchronous generator, some undesirable features are inevitably introduced in Virtual Synchronous Generator control. The conflict between fast varying wind power input and slow dynamics of Virtual Synchronous Generator controlled inverter is further discussed. Virtual Synchronous Generator with multiple virtual rotating masses is proposed in order to improve the active power tracking performance as well as to boost inertial control of a wind power generator. The performance of proposed inertial control is verified in IEEE benchmark power system with wind power integration.

GAO.jpgBio: Dr. David Wenzhong Gao is a tenured Full Professor and Director of Renewable Energy and Power Electronics Laboratory with the Department of Electrical and Computer Engineering, University of Denver, Colorado. He received his M.S. and Ph.D. degrees in electrical and computer engineering, from Georgia Institute of Technology, Atlanta, USA, in 1999 and 2002, respectively. His current teaching and research interests include renewable energy and distributed generation, microgrid, smart grid, power system protection, power electronics applications in power systems, power system modeling and simulation, and hybrid electric propulsion systems. He is an Associate Editor for IEEE Journal of Emerging and Selected Topics in Power Electronics, and Journal of Modern Power Systems and Clean Energy. He was an editor of IEEE Transactions on Sustainable Energy. He is the General Chair for the 48th North American Power Symposium (NAPS2016) and the IEEE Symposium on Power Electronics and Machines in Wind Applications (PEMWA 2012).

Upcoming seminars are: 

David Gao, University of Denver - October 9
Wind Control

Masood Parvania, University of Utah - October 16

Brian Sohn, Carson Newman University - October 23
Professional Development: Listening and Learning in New Domains

TBA - October 30

Jingling Sun, University of Tennessee and Yu Yan, University of Tennessee - November 6
TBD and Zero-Voltage Switching for a Dual-Active-Bridge-Based Bidirectional EV Charger

Dr. Hong Tao - November 13