Open AccessFast optimal power allocation algorithm for multi‐terminal AC/DC hybrid grids with wind power integration
Author(s) -
Guo Xiaoqian,
Qiao Ying,
Lu Zongxiang,
Wu Linlin,
Xu Man
Publication year - 2017
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2017.0613
Subject(s) - matlab , computer science , power flow , wind power , power (physics) , ac power , grid , control theory (sociology) , power optimizer , algorithm , electric power system , voltage , mathematics , electrical engineering , maximum power point tracking , engineering , physics , control (management) , quantum mechanics , artificial intelligence , geometry , inverter , operating system
The multi‐terminal AC/DC hybrid grid 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 the power losses, is a significant problem to be solved. A new simplified OPA algorithm for multi‐terminal AC/DC hybrid grids is proposed. By simplifying and linearising the power flow model of AC and DC grids, the mathematical expression of power losses is expressed as a multivariate quadratic function, whose minimum value can be directly obtained with the Lagrange multiplier method. Simulations of a four‐terminal AC/DC hybrid grid with wind power integration are carried out by using MATLAB, and the simulation results validate the effectiveness of the proposed algorithm.