| 基于Python-SACS 循环优化方法的海上变电站导管架结构轻量化研究 |
| Research on Lightweighting of Offshore Substation Jacket Structure Based on Python-SACS Cyclic Optimization Method |
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| DOI：doi：10.3969/j.issn.1003-2029.2026.01.012 |
| 中文关键词: 海上变电站 轻量化 敏感性分析 Python优化 安全校核 |
| 英文关键词:offshore substations lightweighting sensitivity analysis Python optimization safety calibration |
| 基金项目:中国电建集团华东勘测设计研究院有限公司科技立项项目（KY2021-XNY-02-08） |
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| 中文摘要: |
| 海上变电站作为整个海上风电场的电力传输与信息通讯枢纽，其安全运行具有至关重要的
意义。在当前海上变电站的设计过程中，为保障结构在复杂海洋环境中的安全性，往往采用较大的
安全余量，但这会导致工程建造成本增加，显著降低项目的经济效益。因此，本文针对某海上变电
站，以极端荷载条件下的在位分析工况为研究基础，开展了导管架结构轻量化设计研究。首先，基
于结构安全性与轻量化效果的双重原则，利用SACS软件对变电站导管架基础的所有杆件组进行减
重效果敏感性分析，遴选出对结构重量影响较大且对安全性影响较小的杆件组，并提出三种轻量化
设计方案。其次，提出了海上变电站结构的Python-SACS循环优化方法，基于Python程序语言调
用SACS软件进行循环迭代计算，通过对不同轻量化设计方案进行优化以获得最佳方案。最后，针
对轻量化设计方案，对在位分析、吊装分析、坐底稳定性分析、靠船碰撞分析及疲劳分析5种工况
进行验证，论证了海上变电站导管架结构优化设计方案具有良好的安全性和可行性。 |
| 英文摘要: |
| As the power transmission and information communication hub of the entire offshore wind farm, the safe operation of the offshore
substation is of vital importance. In the current design process of offshore substations, large safety margins are often adopted to ensure
structural safety in the complex marine environment, which leads to increased construction costs and significantly reduced economic
benefits of the project. Therefore, in this study, a lightweight design study was carried out on the jacket structure of an offshore substation
based on in-situ analysis under extreme load conditions. First of all, considering the dual principles of structural safety and lightweight
efficiency, the SACS software was used to conduct a sensitivity analysis of the weight reduction effect of all the member groups of the
substation conduit frame. Member groups with a greater impact on structural weight and a lesser impact on safety were selected, and three
lightweight design schemes were proposed. Second, a Python-SACS cyclic optimization method for offshore substation jacket structures was
developed, based on invoking the SACS software for cyclic iterative calculations by the Python programming language to obtain the best
solution after optimizing different lightweight design. Finally, for the lightweight design scheme, the five working conditions of in-situation
analysis, lifting analysis, bottom stability analysis, leaning ship collision analysis and fatigue analysis were verified, and the optimized
design scheme of the jacket structure of the offshore substation is proven to exhibit good safety and feasibility. |
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