A Method of Parallel Computing for Electromagnetic Transient Simulation Based on Semi-implicit Latency Decoupling Technology (Part I): Theory and AC Network Partitioning and Parallel

被引：0

作者：

Yao S. ^{[1
]}

Pang B. ^{[1
]}

Wu G. ^{[2
]}

Dai H. ^{[2
]}

Wang Y. ^{[1
]}

Han M. ^{[1
]}

机构：

[1] North China Electric Power University, Changping District, Beijing

[2] China Electric Power Research Institute, Haidian District, Beijing

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2022年 / 42卷 / 07期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Circuit partitioning; Electromagnetic transient simulation (EMT); Parallel computing; Semi-implicit latency decoupling;

D O I：

10.13334/j.0258-8013.pcsee.201891

中图分类号：

学科分类号：

摘要：

With the increasing penetration ration of power electronics devices in power systems, traditional electromagnetic transient simulation (EMT) is difficult to meet the requirements of fast solutions. The parallel simulation is an effective way to improve simulation efficiency. After analyzing the shortcomings of the existing electromagnetic transient circuit partitioning and parallel simulation algorithms, firstly, based on the system state space equation, the matrix splitting technology was exploited to divide the system state variables into different groups and the time delay characteristics among those groups was researched by analyzing the different integration formats. Consequently, a semi-implicit latency decoupling and paralleling technology (SILDP) was proposed for the EMT. This method could realize the natural circuit partitioning without introducing additional capacitors or inductances, not limited to the length of the transmission line between subsystems, and did not also found an associated network among equivalent subsystems to solve it. Secondly, based on the SILDP, a circuit partitioning strategy and parallel calculation process, which could realize the different grained parallel computing, was researched and designed for EMT. Finally, two study cases verify the effectiveness of the proposed method. © 2022 Chin. Soc. for Elec. Eng.

引用

页码：2486 / 2496

页数：10

共 28 条

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