EMT-TS Hybrid Simulation for Large Power Grids Considering IBR-Driven Dynamics

Conference · Tue Dec 31 04:00:00 EST 2024

DOI:https://doi.org/10.1109/IECON55916.2024.10905910· OSTI ID:2567011

Xiong, Min ^[1]; Wang, Bin ^[2]; Vaidhynathan, Deepthi ^[1]; Maack, Jonathan ^[1]; Liu, Yuan ^[3]; Abhyankar, Shrirang G. ^[3]; Palmer, Bruce J. ^[3]; Henriquez-Auba, Rodrigo ^[1]; Hoke, Andy ^[1]; Sun, Kai ^[4]; Vittal, Vijay ^[5]; Sajjadi, Mahsa ^[4]; Khamees, Mohammed ^[4]; Huang, Kaiyang ^[4]; Ramasubramanian, Deepak ^[6]; Verma, Vishal ^[7]; Reynolds, Matthew ^[8]; Tan, Jin ^[1]

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1. National Renewable Energy Laboratory
2. University of Texas at San Antonio
3. BATTELLE (PACIFIC NW LAB)
4. University of Tennessee
5. Arizona State University
6. Electric Power Research Institute
7. Electric Power Research Institute, Inc.
8. NREL

The escalating integration of inverter-based resources (IBRs) poses new challenges to power systems by introducing fast dynamics with higher frequencies, which may need to be simulated by an electromagnetic transient (EMT) program. As an alternative to conducting EMT simulations for the entire system, which is typically time-consuming, hybrid simulation between EMT and phasor-domain transient stability (TS) can greatly reduce the computational burden while preserving the detailed fast dynamics in the EMT zone. This paper establishes an EMT-TS hybrid simulation platform using open-source tools, specifically ParaEMT, GridPACK, and HELICS, which are the EMT simulator, TS simulator, and framework interface, respectively. Case studies on the 240-bus Western Electricity Coordinating Council (WECC) system demonstrated that the developed ParaEMT-HELICS-GridPACK hybrid simulator can accurately capture both slow electromechanical and fast IBR-driven dynamics with a 2.4× speedup.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 2567011
• Report Number(s): PNNL-SA-195910
• Country of Publication: United States
• Language: English