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| Content Provider | IET Digital Library |
|---|---|
| Author | Song, Yankan Chen, Ying Huang, Shaowei Xu, Yin Yu, Zhitong Marti, Jose R. |
| Abstract | As more generators and loads are integrated by power electronic converters with complicated controls, electromagnetic transients (EMTs) simulation becomes an important tool for studying dynamic characteristics of large-scale power systems. To accelerate system-level EMT simulations, a fine-grained parallel algorithm on graphics processing units (GPU) is proposed. By decomposing the computational models of the EMT simulation into heterogeneous, homogeneous and network solution computations, the simulations are mapped into three unified GPU kernels. To incorporate control signals and non-linear features of electrical components, heterogeneous computations are formulated as layered direct acyclic graphs (LDAG) of primitive operations. An LDAG kernel is designed to carry out theses primitive operations efficiently by grouped threads. Then, homogeneous computations for state updates of electrical components are modelled as sets of fused multiply-add (FMA) operations, which are concurrently processed by an FMA kernel. Moreover, a hybrid network solution kernel is designed to solve the network equations, which can adaptively select dense or sparse solvers. Large-scale test systems are created and simulated on an NVIDIA K20x GPU. The results show that the proposed GPU-based EMT simulations are accurate and achieve 10x speedups over the CPU-based ones. |
| Starting Page | 2840 |
| Ending Page | 2851 |
| Page Count | 12 |
| ISSN | 17518687 |
| Volume Number | 11 |
| e-ISSN | 17518695 |
| Issue Number | Issue 11, Aug (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-gtd/11/11 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2016.2078 |
| Journal | IET Generation, Transmission & Distribution |
| Publisher Date | 2017-04-25 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Combinatorial Mathematics Compute Unified Device Architecture Control of Electric Power System Directed Graph Distributed Generator Distributed Power Generation EMTP Fine-grained Parallel Algorithm FMA Operation Fused Multiply-add Operation GPU-based Electromagnetic Transient Simulation Graphics Processing Units Large-scale Control System Large-scale Power System Layered Direct Acyclic Graph LDAG Power Distribution Control Power Engineering Computing Power System Control Single-instruction-multiple-threads Pattern System-level EMT Simulations Unified GPU Kernels |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering |
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