Distributed Formal Analysis for Power Networks With Deep Integration of Distributed Energy Resources
Distributed Formal Analysis for Power Networks With Deep Integration of Distributed Energy Resources
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DOI：
10.1109/tpwrs.2018.2875150
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发表时间：
2019-11
影响因子：
6.6
通讯作者：
Yan Li;Peng Zhang;M. Althoff;M. Yue
中科院分区：
文献类型：
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作者：
Yan Li;Peng Zhang;M. Althoff;M. Yue
提出了一种基于可达集计算的可扩展分布式形式分析（DFA）方法，以有效地评估分布式能源高渗透引起的异构干扰下大型互联电网的稳定性。基于严格的数学推导，DFA能够直接计算出所有可能的动力学边界，并提供传统时域模拟或直接方法无法获得的稳定性信息。建立了一种$N+M$分解方法，以解耦大规模网络系统，实现分布式可达集计算，同时保持每个子系统的隐私性。网络微网系统的数值算例表明，DFA有助于有效地计算和分析DER干扰对电网动力学的影响，从而为优化系统运行提供了有力的手段。因此，DFA为设计和运行未来的互联电网提供了宝贵的工具，这将以DERs的深度集成为特征。
A scalable distributed formal analysis (DFA) via reachable set computation is presented to efficiently evaluate the stability of large-scale interconnected power networks under heterogeneous disturbances induced by high penetration of distributed energy resources (DERs). Based on rigorous mathematical derivation, DFA is able to directly compute the boundaries of all possible dynamics and provide stability information, which is unattainable by traditional time-domain simulations or direct methods. An $N+M$ decomposition approach is established to decouple a large-scale networked system and enable distributed reachable set calculations while also preserving the privacy of each subsystem. Numerical examples on a networked microgrid system show that DFA facilitates the efficient calculation and analysis of the impact DER disturbances can have on power network dynamics, which provides a potent means of optimizing the system's operation. Therefore, DFA provides an invaluable tool for designing and operating the interconnected power networks of the future, which will feature the deep integration of DERs.