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首页> 外文期刊>Renewable Power Generation, IET >Fast optimal power allocation algorithm for multi-terminal AC/DC hybrid grids with wind power integration
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Fast optimal power allocation algorithm for multi-terminal AC/DC hybrid grids with wind power integration

机译：具有风能集成的多终端AC / DC混合电网的快速最优功率分配算法

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摘要

Multi-terminal alternating current (AC)/direct current (DC) hybrid transmission technology is a promising alternative for the integration and transmission of large-scale wind power. Optimal power allocation (OPA), to distribute the active power between AC and DC transmission lines in order to minimise transmission power loss, is a significant problem to be solved. A new simplified OPA algorithm for multi-terminal AC/DC hybrid grids is proposed in this work. The power flow models of the AC grid and DC grid are separately established and linearised, and both AC and DC power losses are formulated in a simplified way. By doing so, the mathematical formula of the total power loss is expressed as a multivariate quadratic function, of which the minimum value can be directly obtained with the derivative method. Simulations based on a four-terminal AC/DC hybrid grid with wind power integration are carried out by using MATLAB, and the effectiveness of the proposed algorithm is validated by case studies.
机译：多端子交流（AC）/直流（DC）混合传输技术是大规模风电集成和传输的有前途的替代方法。最优功率分配（OPA），以在交流和直流传输线之间分配有功功率，以使传输功率损耗最小，是需要解决的重要问题。在这项工作中，提出了一种新的简化的多端子AC / DC混合电网OPA算法。分别建立并线性化了AC电网和DC电网的潮流模型，并且以简化的方式计算了AC和DC功率损耗。通过这样做，总功率损耗的数学公式被表示为多元二次函数，其最小值可以通过导数法直接获得。利用MATLAB对具有风电集成能力的四端交直流混合电网进行了仿真，并通过实例验证了该算法的有效性。

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