Modelling and optimisation for a coordinated interconnected multi-terminal DC transmission infrastructure for integration of offshore wind energy

海上风电一体化协调互联多端直流输电基础设施建模与优化

• 批准号: 2651009
• 金额: --
• 依托单位: Durham University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2651009
• 关键词: Modelling; optimisation; coordinated; interconnected; multi

1st year is the PG Diploma and research and Industry preparationThis work will aim to develop advanced computational models for power systems including models that are suitable for solving optimal power flow problem. Models will be developed for VSC-based HVDC links which could be used to form multi-terminal supergrids for connecting multiple wind farms. The optimal power flow problem is a complex nonlinear optimisation problem which can be quite tasking for especially larger scale systems and as such one of the main methodological contributions in this project is to develop suitable approximations such as linearisation methods for reducing the computational expenditure of the optimal power flow problem and at the same time maintain its tractability when scaled up for larger systems. The project will also involve implementation of a suitable day-ahead operational planning framework by solving multiple instances of optimal power flow problem to plan the operation of offshore wind farms within a specific planning timescale (say 24 hours). The planning framework is then implemented to multiple wind farms connected via a multi-terminal HVDC supergrid to provide better power regulation and a more stable, reliable operation even after emergencies such as loss of supply in a specific region. These added flexibilities of operation are necessary for a sustainable growth and integration of offshore wind resource in the future for example in the UK in line with National Grid's Future Energy Scenarios (FES) projections.

第一年是PG文凭和研究和工业实习这项工作的目的是开发电力系统的高级计算模型，包括适合解决最优潮流问题的模型。将为基于VSC的HVDC链路开发模型，该模型可用于形成连接多个风电场的多端超级电网。最优潮流问题是一个复杂的非线性优化问题，对于特别是较大规模的系统来说，这可能是一个相当艰巨的任务，因此本项目的主要方法贡献之一是开发合适的近似，如线性化方法，以减少最优潮流问题的计算开销，同时在较大系统中按比例放大时保持其易处理性。该项目还将涉及通过解决多个最佳潮流问题实例来实施合适的日前运营规划框架，以在特定的规划时间表（例如24小时）内规划海上风电场的运营。然后，将规划框架实施到通过多端HVDC超级电网连接的多个风电场，以提供更好的功率调节和更稳定、可靠的运行，即使在特定区域发生停电等紧急情况后也是如此。这些增加的操作灵活性对于未来海上风力资源的可持续增长和整合是必要的，例如在英国，符合国家电网的未来能源情景（FES）预测。