台风灾害下考虑支路切换和频率安全的交直流混合系统优化运行

IF 5 2区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Electrical Power & Energy Systems Pub Date : 2025-04-27 DOI:10.1016/j.ijepes.2025.110693

Changfeng Liao , Li He , Zhuangxi Tan , Bin Xie , Yong Li , Chaoyang Chen , Yijia Cao

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引用次数: 0

摘要

海上风电具有显著的优势，包括风力资源丰富；然而，沿海电网容易受到台风等自然灾害的破坏。针对这一问题，本文提出了一种具有电压源变换器（VSCs）的交直流混合系统在极端事件下的最优运行方法。该模型结合了拓扑优化来处理由此类事件引起的系统连续结构变化。引入了兼容拓扑优化的频率安全约束，以确保系统在极端条件下的稳定性，其中低惯性和功率不平衡是突出问题。考虑极端事件的不确定性和时间序列，采用滚动优化方法求解各时段的最优调度。用两个不同规模的交/直流混合系统验证了该模型的有效性。结果表明，同时考虑拓扑优化和频率安全约束，可以显著提高系统的经济性和安全性。©2017 Elsevier Inc.版权所有。

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Optimal operation for hybrid AC and DC systems under typhoon disaster considering branch switching and frequency security

Offshore wind power offers significant advantages, including abundant wind resources; however, coastal power grids are vulnerable to damage from natural disasters such as typhoons. To address this issue, this paper proposes an optimal operation method for hybrid AC/DC systems with voltage source converters (VSCs) during extreme events. The model incorporates topology optimization to handle continuous structural changes in the system caused by such events. Frequency security constraints that are compatible with topology optimization are introduced to ensure system stability during extreme conditions, where low inertia and power imbalance are prominent issues. Considering the uncertainty and temporal sequence of extreme events, a rolling optimization approach is employed to derive the optimal scheduling for each period. The effectiveness of the proposed model is demonstrated using two hybrid AC/DC systems of different sizes. The results confirm that by simultaneously considering topology optimization and frequency security constraints, both economic efficiency and system security can be significantly improved.

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来源期刊

International Journal of Electrical Power & Energy Systems 工程技术-工程：电子与电气

CiteScore

12.10

自引率

17.30%

发文量

1022

审稿时长

51 days

期刊介绍： The journal covers theoretical developments in electrical power and energy systems and their applications. The coverage embraces: generation and network planning; reliability; long and short term operation; expert systems; neural networks; object oriented systems; system control centres; database and information systems; stock and parameter estimation; system security and adequacy; network theory, modelling and computation; small and large system dynamics; dynamic model identification; on-line control including load and switching control; protection; distribution systems; energy economics; impact of non-conventional systems; and man-machine interfaces. As well as original research papers, the journal publishes short contributions, book reviews and conference reports. All papers are peer-reviewed by at least two referees.