Highlighting Authors from RTDS Technologies
& Their Work at the 2022 IEEE PES GM

Paper Presentation

Monday, July 18, 2022

1–5 PM MDT

Two-Core Parallel Network Solution

A Best Conference Paper – IEEE PES GM 2022

Proudly Presenting A Best Conference Paper Session

RTDS Technologies is proud to have a paper selected among the Best Conference Papers at the 2022 IEEE Power and Energy Society General Meeting in Denver, Colorado! Two-Core Parallel Network Solution for NovaCor® Real-Time Digital Simulator by Yizhong Hu, Yi Zhang, and Trevor Maguire has been selected for the award.

The paper describes the techniques used to implement a two-core parallel network solution for the RTDS Simulator’s NovaCor hardware generation. This significantly increased (in fact, doubled) the size of the power system network solution that can be solved in real-time without decoupling the network into two subsystems.

Prior to the work described in the paper, it was possible to simulate a maximum of 300 single-phase power system nodes as one tightly-coupled network solution (solved on a dedicated core) in real time. With several cores licensed on NovaCor chassis, it was possible to dedicate two cores to this task, allowing for a total of 600 single-phase nodes to be simulated in two decoupled subsystems. Decoupling is achieved via travelling wave transmissions systems (I.E. systems with only short transmission lines) with more than 300 single-phase nodes.

A two-core parallel network solution was achieved via group bisection and coordination of the two cores to fulfill the network solution matrix decomposition process as well as the forward and backward operations together. These methods are described in more detail within the paper. The new network solution allows for two dedicated cores to achieve a 600 node network solution without decoupling. This improvement allows users to simulate much larger networks on one NovaCor chassis without requiring subsystem splitting via travelling wave transmission line. Spreading the network solution over two cores also reduces the simulation timestep for cases that were previously running with the single-core network solution.

If you’re attending the IEEE PES General Meeting in Denver, Colorado, don’t miss the Best Conference Papers session where you can learn more about this paper. We’re also co-hosting an exciting hospitality suite where you can learn about the latest and greatest advancements in real-time simulation! To learn more about both, visit our IEEE PES GM webage here.

Original network solution matrix fill (left); matrix after partitioning, number ordering, and decomposition for new two-core parallel network solution (right)

Dr. Yizhong Hu
R&D Supervisor, Simulation Solutions

Bio: Dr. Yizhong received the B.S. degree in Power System and its Automation and the Ph.D. degree in Power System from the Department of Electrical Engineering,Tsinghua University, Beijing, China. From 2015-16, he was visiting scholar at the University of Manitoba in Canada. From 2017 onward, he joined RTDS Technologies Inc. His work responsibilities include network solution, load flow, FDNE, and power system modelling..

Dr. Yi Zhang
Vice President of R&D | Chief Technology Officer

Bio: Dr. Yi Zhang joined RTDS Technologies Inc. in 2000, where he now serves as Vice President of Research and Development and Chief Technology Officer. Dr. Zhang has over 28-years of experience working in the area of power system simulation and analysis. His expertise includes the Real-Time EMT Simulation, Voltage Stability, HVDC, and more. As a principle member of the RTDS Technologies development team for over 20-years, Dr. Zhang has developed a number of power system models for the RTDS Real-Time Simulator. At present, he leads the R&D activities for RTDS Technologies. Dr. Zhang obtained his PhD degree from Shanghai Jiao Tong University and the University of Manitoba. He’s a registered professional engineer in the province of Manitoba and a senior member of IEEE. He also serves as an adjunct professor at the University of Manitoba and at the University of China. In his spare time, he is an editor for the IEEE Transactions on Power Delivery journal.

Hospitality Suite Theme:
Rockin' Out in the Rockies

It’s been a two-year hiatus, but join us in Denver! We’re excited to reconnect with you for “Rockin’ Out in the Rockies”, a rock n’ roll themed hospitality suite for the IEEE PES General Meeting.

Stop by the Hacieneda Restaurant July 18, from 8 PM-10 PM or July 19, from 7 PM-10 PM for fun prizes, food, and music energized by love for rock n’ roll.

Whip out your air guitar and shred to rock oldies with us—you might just win a rad prize.