MGRIT-Based Multi-Level Parallel-in-Time Electromagnetic Transient Simulation

In this paper, we present an approach for multi-level parallel-in-time (PinT) electromagnetic transient (EMT) simulation. We evaluate the approach in the context of power electronics system-level simulation. While PinT approaches to power electronics simulations based on two-level algorithms have be...

Full description

Saved in:
Bibliographic Details
Published in:Energies (Basel) Vol. 15; no. 21; p. 7874
Main Authors: Strake, Julius, Döhring, Daniel, Benigni, Andrea
Format: Journal Article
Language:English
Published: Basel MDPI AG 01.10.2022
Subjects:
Algorithms
Approximation
Electric current converters
Electromagnetism
Methods
MGRIT
multi-level
parallel-in-time
power electronics
Simulation
Transients (Dynamics)
Germany
ISSN:1996-1073, 1996-1073
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, we present an approach for multi-level parallel-in-time (PinT) electromagnetic transient (EMT) simulation. We evaluate the approach in the context of power electronics system-level simulation. While PinT approaches to power electronics simulations based on two-level algorithms have been thoroughly explored in the past, multi-level PinT approaches have not yet been investigated. We use the multigrid-reduction-in-time (MGRIT) method to parallelize a dedicated EMT simulation tool which is capable of switching between different converter models as it operates. The presented approach yields a time-parallel speed-up of up to 10 times compared to the sequential-in-time implementation. We also show that special care has to be taken to synchronize the time grids with the electronic components’ switching periods, indicating that further research into the usage of different models from adequate model hierarchies is necessary.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1996-1073
1996-1073
DOI:10.3390/en15217874