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arXiv 2201.10221math.OC
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电力网络分布式优化方案的保密性

Privacy of distributed optimality schemes in power networks

Andreas Kasis, Kanwal Khan, Marios M. Polycarpou, Stelios Timotheou

摘要:

本地发电和可控需求单元在电力网络中的参与越来越多,促使使用分布式方案进行控制。同时,它提出了两个问题,实现这些单位之间的最佳功率分配,并确保隐私的发电/需求配置文件。本研究考虑的问题,设计分布式最优方案,保护隐私的发电和可控的需求单位在二次频率控制时间范围内。我们提出了一个共识计划,其中包括发电/需求配置文件内的动态,保持这种信息的私人知识时,其内部动态是不可用的。然而,可以使用其内模的知识来推断消耗简档。我们解决这个问题,提出了一个隐私保护计划,确保生成/需求不能从通信信号推断。对于这两个建议的计划,我们提供了分析稳定性,最优性和隐私的保证,并表明二次频率控制目标是满意的。所提出的方案是分布式的,本地验证和适用于任意网络拓扑结构。我们的分析结果进行了验证与模拟上的140个总线系统,在那里我们证明,所提出的方案提供了增强的隐私属性,使最佳的功率分配和保持电力网络的稳定性。

英文摘要:

The increasing participation of local generation and controllable demand units within the power network motivates the use of distributed schemes for their control. Simultaneously, it raises two issues; achieving an optimal power allocation among these units, and securing the privacy of the generation/demand profiles. This study considers the problem of designing distributed optimality schemes that preserve the privacy of the generation and controllable demand units within the secondary frequency control timeframe. We propose a consensus scheme that includes the generation/demand profiles within its dynamics, keeping this information private when knowledge of its internal dynamics is not available. However, the prosumption profiles may be inferred using knowledge of its internal model. We resolve this by proposing a privacy-preserving scheme which ensures that the generation/demand cannot be inferred from the communicated signals. For both proposed schemes, we provide analytic stability, optimality and privacy guarantees and show that the secondary frequency control objectives are satisfied. The presented schemes are distributed, locally verifiable and applicable to arbitrary network topologies. Our analytic results are verified with simulations on a 140-bus system, where we demonstrate that the proposed schemes offer enhanced privacy properties, enable an optimal power allocation and preserve the stability of the power network.

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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