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arXiv 2501.08293cs.DCmath.OC
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一种用于配电网最优潮流的GPU加速分布式算法

A GPU-Accelerated Distributed Algorithm for Optimal Power Flow in Distribution Systems

Minseok Ryu, Geunyeong Byeon, Kibaek Kim

AI总结:

针对有源配电网多相最优潮流控制问题,提出采用分量式分解的GPU加速分布式算法,通过分离等式与不等式约束利用GPU并行性大幅提速,在IEEE多规模测试系统上验证了优于CPU方案的可扩展性。

摘要:

我们提出一种GPU加速的分布式优化算法,用于控制拓扑动态变化的有源配电网中的多相最优潮流。为应对多变的网络配置并实现自适应分解,我们采用分量式分解策略。然而,该方法可能导致计算时间过长,主要原因是大量细粒度分量间达成共识所需的迭代次数过多。为克服这一问题,我们引入一种将等式约束与不等式约束分离的技术,借助GPU并行性将单次迭代时间降低数个数量级,从而显著加速整体计算。在13节点至8500节点的IEEE测试系统上开展的数值实验表明,与基于CPU的同类方法相比,所提方法具备更优异的可扩展性。

英文摘要:

We propose a GPU-accelerated distributed optimization algorithm for controlling multi-phase optimal power flow in active distribution systems with dynamically changing topologies. To handle varying network configurations and enable adaptable decomposition, we advocate a componentwise decomposition strategy. However, this approach can lead to a prolonged computation time mainly due to the excessive iterations required for achieving consensus among a large number of fine-grained components. To overcome this, we introduce a technique that segregates equality constraints from inequality constraints, enabling GPU parallelism to reduce per-iteration time by orders of magnitude, thereby significantly accelerating the overall computation. Numerical experiments on IEEE test systems ranging from 13 to 8500 buses demonstrate the superior scalability of the proposed approach compared to its CPU-based counterparts.

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