Topology-aware Iterative Method for Large-scale Power Electronic Systems with Stray Parameters
- Resource Type
- Conference
- Authors
- Xu, Han; Zhao, Zhengming; Shi, Bochen; Zeng, Yangbin; Zheng, Jialin; Liu, Weicheng; Mou, Di; Wang, Haoyu
- Source
- 2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Power Electronics for Distributed Generation Systems (PEDG), 2023 IEEE 14th International Symposium on. :1040-1044 Jun, 2023
- Subject
- Components, Circuits, Devices and Systems
Power, Energy and Industry Applications
Software algorithms
Switches
Transformers
Reliability engineering
Power electronics
Software
Power grids
electronic system
co-simulation
hybrid time-event
dsim
simulink
- Language
- ISSN
- 2329-5767
Power electronic systems are crucial in modern power grids. Accurate offline simulation tools are essential for analyzing such systems. However, the accurate simulation of large-scale power electronic systems is time-consuming especially when stray parameters are considered. This paper proposes a topology-aware iterative method to improve solving efficiency for large-scale power electronic systems with stray parameters. The proposed method includes a topology-aware partitioning strategy and a flexible preconditioning method to efficiently construct preconditioners that can adapt to different topologies and step sizes. With this method, a large-scale solid-state transformer with stray parameters is efficiently simulated. Over 300-fold acceleration is achieved in total compared with commercial software. The method makes it possible to analyze and design large-scale power electronic systems more reliably.