Parallel-in-Time Solution of Power Systems with Scheduled Events
Parallel-in-Time Solution of Power Systems with Scheduled Events
复制标题
具有预定事件的电力系统实时并行解决方案
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
M. Lecouvez
中科院分区：
文献类型：
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作者：
J. Schroder;R. Falgout;C. Woodward;P. Top;M. Lecouvez
这项工作提出了一种时间并行方法，用于解决具有计划事件的电网问题（例如，应用于总线的方形脉冲）。在XBraid代码中实现的多网格时间缩减（MGRIT）方法用于非侵入性地增加GridDyn的时间并行性，GridDyn是现有的开源电网仿真工具。该方法将顺序时间步进和计划事件的标准实践扩展到时间并行设置，然后探索时间优化。本文最后进行了并行验证，显示WECC 179总线系统的速度约为50倍。通过每2秒向总线143施加一个1秒长的方形脉冲来检查与计划事件相关的可伸缩性。
This work presents a time-parallel approach for solving power grid problems with scheduled events (e.g., a square pulse applied to a bus). The multigrid reduction in time (MGRIT) method, implemented in the XBraid code, is used to nonintrusively add time parallelism to GridDyn, an existing open-source power grid simulation tool. The approach extends standard practices for sequential time stepping and scheduled events to the time-parallel setting and then explores temporal refinement. The paper concludes with a parallel validation showing speedups of around 50× for the WECC 179 bus system. Scalability with respect to scheduled events is examined by applying a one second long square pulse to bus 143 every 2 seconds.