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arXiv 2602.13896eess.SYcs.SY
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基于强化学习的多尺度电压动态概率可达性分析

Probabilistic Reachability Analysis of Multi-scale Voltage Dynamics Using Reinforcement Learning

University of Hyogo(兵库大学);Fraunhofer IEE(弗劳恩霍夫电气能源系统集成研究所)

Naoki Hashima, Hikaru Hoshino, Luis David Pabón Ospina, Eiko Furutani

AI总结:

本文提出基于深度强化学习的框架,用于多尺度电压动态的概率可达性分析,通过建模不稳定性机制并统一学习风险概率,有效识别电压崩溃的机制。

摘要:

现代电力系统中的电压稳定性涉及多个时间尺度的耦合动态。传统基于时间尺度分离或静态稳定边界的 方法可能忽略慢速和快速暂态耦合引起的不稳定性。运行条件的不确定性进一步复杂了稳定性评估,而蒙特卡罗模拟的高计算成本限制了其在多尺度动态中的应用。本文提出了一种基于深度强化学习的框架,用于多尺度电压动态的概率可达性分析。通过将每种不稳定性机制作为不同的吸收状态进行建模,并引入多批评者架构进行机制特定学习,所提方法能够在统一框架内一致地学习多种不稳定性类型的风险概率。该方法在具有负载调压器和过激励限制器的四节点系统上得到验证,展示了所提基于学习的可达性分析在识别和量化导致电压崩溃的机制方面的有效性。

英文摘要:

Voltage stability in modern power systems involves coupled dynamics across multiple time scales. Conventional methods based on time-scale separation or static stability margins may overlook instabilities caused by the coupling of slow and fast transients. Uncertainty in operating conditions further complicates stability assessment, and high computational cost of Monte Carlo simulations limit its applicability to multi-scale dynamics. This paper presents a deep reinforcement learning-based framework for probabilistic reachability analysis of multi-scale voltage dynamics. By formulating each instability mechanism as a distinct absorbing state and introducing a multi-critic architecture for mechanism-specific learning, the proposed method enables consistent learning of risk probabilities associated with multiple instability types within a unified framework. The approach is demonstrated on a four-bus system with load tap changers and over-excitation limiters, illustrating effectiveness of the proposed learning-based reachability analysis in identifying and quantifying the mechanisms leading to voltage collapse.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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