| 基于分群解耦的电力系统机电电磁混合仿真的分网技术 |
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| 引用本文： | 穆清,程昱,王春明,汪旸,严剑峰,徐得超,庞润甜. 基于分群解耦的电力系统机电电磁混合仿真的分网技术[J]. 现代电力, 2021, 38(4): 355-361. DOI: 10.19725/j.cnki.1007-2322.2020.0335 |
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| 作者姓名： | 穆清 程昱 王春明 汪旸 严剑峰 徐得超 庞润甜 |
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| 作者单位： | 1.电网安全与节能国家重点实验室（中国电力科学研究院有限公司），北京市海淀区 100192 |
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| 基金项目： | 国家重点研发计划资助项目（2018YFB0904503）资助本项目 |
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| 摘 要： | 多条耦合直流输电的响应只能通过电磁暂态仿真程序模拟.为了提高仿真精度,机电-电磁混合仿真已用于电力系统运行的研究.为解决目前机电-电磁混合仿真速度太慢的问题,提出了一种电力系统混合仿真分网技术.首先把机电网络分成尽可能多的网络孤岛,把电磁暂态网络通过传输线解耦方式分网,然后基于分群解耦的机电-电磁混合仿真算法形成单时步...
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| 关 键 词： | 电力系统仿真 并行计算 机电-电磁暂态混合仿真技术 电力系统分网技术 电力系统方式计算 |
| 收稿时间： | 2020-09-22 |
Power System Tearing Technology for EMT-TS Hybrid Simulation Based on Group Decoupled Interface Division |
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| Affiliation: | 1.State Key Laboratory of Power Grid Security and Energy Conservation (China Electric Power Research Institute), Haidian District, Beijing 100192, China2.Central China Branch of State Grid, Wuhan 430014, Hubei Province, China |
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| Abstract: | The response for multiple coupled HVDCs can only be simulated through EMT programs. To increase the simulation accuracy, the EMT-TS Hybrid simulation has been used in studies of the power system operation. Currently, the EMT-TS hybrid simulation speed is too slow. This paper presents a novel power system tearing technology to greatly improve the simulation speed in EMT-ST network islands as many as possible, while the EMT network is teared through the combined transmission line. An algorithm is supposed to form the EMT-ST subnetwork groups, which has no coupling with each other. And the ST-EMT subnet group decoupled in a single time step base on this algorithm. Then an novel parallel program structure is proposed to use this EMT-ST subnetwork groups to realize the parallel simulation and speedup the simulation. The case studies of the grids with 7 HVDCs and 4000 nodes show that the proposed method could greatly improve the simulation speed without lowering precision. |
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