Home  »  Industry  »  Seminar Series

CURENT Power and Energy Industry Seminar - Dr. Guangyi Liu

Dr. Guangyi Liu of Geirina will give the CURENT Power and Energy Industry Seminar on Friday, Jan. 25th. Dr. Liu will be presenting remotely. This seminar is available on WebEx (info follow bio below). 

Date: Friday, January 25

Time: 12:20 pm – 1:10 pm

Where: MHK 124

Presenter: Dr. Guangyi Liu, Chief Technology Officer, Geirina

Title: Graph Computing and Its Application in Power Systems

Abstract: The (typical) five-minute computational latency of current Energy Management Systems (EMSs) can leave (and has left) system operators blind to the system state created by events that lead to cascading outages, system separation and/or system collapse. In this presentation, we present a graph-computing-based EMS that allows the EMS computational cycle time to be reduced to the SCADA sampling cycle, about five seconds. First, this is achieved by using graph database to replace the widely used rational database; Second the graph database query based memory computing technologies is used to speed up the input and output processes; Third, this is achieved in part by taking advantage of both nodal and hierarchical parallelism, to achieve high-speed graph-based state estimation, power flow, and contingency analysis applications. A production-mode case study on an existing large-scale system verifies the advantages and performance of graph computing, demonstrating that the graph-based EMS is more than 20 times faster than a contemporary commercial EMS.    

Bio: Dr. Guangyi Liu (SM 2012) is Chief Technology Officer of Global Energy Interconnection Research Institute, North America. He received his bachelor, master and Ph.D degrees from Harbin Institute of Technology and China Electric Power Research Institute in 1984, 1987 and 1990, respectively. His research interests include Energy Management System (EMS) and Distribution Management System (DMS), electricity market, smart grid, autonomic power system, active distribution network and application of big data in power system.

** Download Slides **

**  Webex Info  **

Join Webex meeting

Meeting Number (access code): 622 489 618

Meeting Password: power 

Join by phone: 1-650-479-3208 Call-in toll number (US/Canada) 

Global call-in numbers