Distributed Optimal Control Strategy of Reactive Power and Voltage in Wind Farm

被引：0
|
作者：
Wang Y. [1 ]
Liao Y. [1 ]
Song Y. [1 ]
Zeng Q. [1 ]
Zheng Z. [1 ]
机构：
[1] College of Electrical Engineering, Sichuan University, Chengdu
来源：
Gaodianya Jishu/High Voltage Engineering | 2022年 / 48卷 / 12期
关键词：
alternative direction multiplier method; distributed control; equalization of the generator terminal voltage; loss of the collection line; wind farm;
D O I：
10.13336/j.1003-6520.hve.20211158
中图分类号：
学科分类号：
摘要：
With the increasing scale of wind farm, traditional centralized control and reactive power proportional distribution methods are difficult to ensure the economy and safety of wind farm operation. For this reason, this paper proposes a distributed optimal control strategy of reactive power and voltage in wind farm. The wind farm operates in a distributed manner to coordinate the reactive power output of the generators with the goal of reducing the loss of the collection line and balancing the terminal voltage of the generators. First, the control objective is established as an optimal problem based on the Distflow power flow model. Then, the distributed optimization algorithm based on the alternating direction multiplier method(ADMM) is used to decompose the original optimization problem into several sub-problems, which are solved iteratively in a distributed manner through the information interaction between adjacent wind turbine controllers. Finally, the control effect of the proposed distributed optimal control strategy is verified in MATLAB and PSCAD. The results show that the distributed optimal control strategy of reactive power and voltage can reduce the communication burden of the wind farm terminal controller, thus the internal loss of the wind farm can be reduced and the feeder voltage distribution can be improved while meeting the reactive power demand commands, promoting the economic, safe and stable operation of the wind farm. © 2022 Science Press. All rights reserved.
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页码：5047 / 5056
页数：9
相关论文
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