.png){kind=icon}
.png){kind=icon}
Return
A Numerically Efficient and Accurate Model for Real-Time Simulation of Solid-State Transformer Using Implicit-Explicit Integration Methods
.png){kind=icon}
PRE
AI
DOI：10.1109/TPEL.2025.3650144.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Electromagnetic transient (EMT) models of power electronic converters are essential for converter design, control, and fault analysis. This article proposes a switching-function-based detailed equivalent model (SFB-DEM) using combined implicit and explicit (ImEx) multistep Gear’s integration methods for numerically efficient and accurate EMT simulation. The proposed SFB-DEM integrates the benefits of ImEx solvers, featuring converter circuit decoupling, node number reduction, and constant nodal-network conductance(G)-matrix in the EMT model. The SFB-DEMs employing the ImEx 2nd and 3rd order Gear’s (i.e., ImEx-G2O and ImEx-G3O) methods are implemented for solid-state transformer (SST) simulation. In addition, a switching interpolation technique is proposed and integrated with the ImEx-G2O and ImEx-G3O solvers to account for intra-time-step switching events. The proposed SST SFB-DEMs greatly accelerate the EMT simulation, compared to the conventional detailed model (DM) and variable conductance(G)-matrix DEM (VG-DEM). For the SST with 60 SMs, the proposed SFB-DEM with ImEx-G3O method achieves the EMT simulation speedup by 171 and 7.5 folds, compared to the DM and VG-DEM, respectively.
Keywords:
Constant G-matrix
electromagnetic transient (EMT) program
implicit-explicit backward differentiation formula
solid-state transformer (SST)
switching interpolation technique
switching-function-based detailed equivalent model (SFB-DEM)
Journal
IF:
6.5
Papers:
1.7W
Citations:
8.3W
Organization
View more organizations