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Home > Archive>Volume 46, Issue 9, 2023 >41-51. DOI:10.11835/j.issn.1000-582X.2022.203
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Coordinated secondary voltage control method of AC/DC system considering wind power randomness
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Affiliation:

1.Electric Power Scientific Research Institute of State Grid Henan Province Electric Power Company，Zhengzhou 450052，P. R. China;2.State Key Laboratory of Power Transmission Equipment &System Security and New Technology, Chongqing University, Chongqing 400044, P. R. China

Clc Number:

TM712

Fund Project:

Supported by Science and Technology Project of State Grid Henan Province Electric Power Company (52170220009X).

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    Abstract:

    To address the challenges posed by large-scale changes of the sending grid tide and the voltage disturbance in converter buses caused by random fluctuation of wind power, which further leads to additional actions of the discrete equipment in the converter station, this paper proposes a coordinated secondary voltage control method for AC-DC systems that consider the randomness of wind power. Firstly, the degree of wind power fluctuation is quantified by defining the relative deviation of power, and characteristic time periods of wind power fluctuation which cannot be ignored in the secondary voltage control are identified. Next, the k-means clustering method is employed to obtain typical scenarios of wind power output during these characteristic time periods. Finally, the probabilistic scenario method is used to represent the randomness of wind power, and the uncertainty optimization problem is solved using the chance constraint method. The effectiveness of the proposed method is validated through simulations conducted on a modified IEEE39 node arithmetic system.

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崔惟,曹逸凡,李程昊,张紫薇,刘明洋,张皓,颜伟.考虑风电随机性的交直流系统协调二级电压控制方法[J].重庆大学学报,2023,46(9):41~51

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  • Received:October 15,2021
  • Online: September 25,2023
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