Wind Farm Active Power Scheduling Method Based on Improved Distributed Congestion Control

doi:10.11930/j.issn.1004-9649.202502026

Abstract

Abstract:

To address the problem of significant computational and communication burden, poor robustness and high fault risk when the centralized active power distribution method is applied to large-scale wind farms, a wind farm active power scheduling method based on distributed congestion control is developed. Firstly, considering the mechanical fatigue caused by pitch angle adjustments and the control mode switching due to excessively fast rotor speed reduction, a cost function quantifying the sensitivity of the wind turbine's power increment to pitch angle and rotor speed is introduced. Secondly, a congestion index is designed to optimize power distribution and tracking performance. Finally, the distributed consensus algorithm is used to simplify the calculation of wind turbine power reference, significantly reducing the computational and communication burden on the control center and endowing the proposed method with scalability. A comparative analysis with centralized control methods demonstrates the superiority of the proposed method in power tracking performance, power distribution, and robustness.

Key words: wind farm, active power distribution, distributed consensus, congestion control, optimal control, fast frequency regulation

XU Jinyu, XU Hui. Wind Farm Active Power Scheduling Method Based on Improved Distributed Congestion Control[J]. Electric Power, 2025, 58(9): 1-9.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202502026

https://www.electricpower.com.cn/EN/Y2025/V58/I9/1

Figures/Tables 13

References 27

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参数	数值	参数	数值
风轮半径R/m	63	积分系数初值${k_{{\text{PI}}}}$	20
额定功率P_N/MW	5	最佳叶尖速比${\lambda _{{\text{opt}}}}$	7.6
额定风速${\nu _{\text{n}}}$/(m·s^–1)	12	最大风能利用系数$C_{\text{p}}^{{\text{max}}}$	0.4865
最大桨距角${\beta ^{\max }}$/°	85	风轮外阻尼${D_{\text{r}}}$/(N·m·s·rad^–1)	0
最小桨距角${\beta ^{\min }}$/°	0	低速轴扭转阻尼${D_{{\text{ls}}}}$/(N·m·s·rad^–1)	6215000
风轮额定转速${\omega _{\text{n}}}$/(rad·s^–1)	1.27	发电机外阻尼${D_{\text{g}}}$/(N·m·s·rad^–1)	0
风轮最小转速$\omega _{\rm r}^{\min }$/(rad·s^–1)	0.7224	发电机转动惯量${J_{\text{g}}}$/(kg·m²)	1256.2
滤波器时间常数${\tau _{\text{f}}}$/s	0.1	风轮转动惯量${J_{\text{r}}}$/(kg·m²)	35444067
比例系数初值${k_{{\text{PP}}}}$	300	低速轴扭转的刚度${K_{{\text{ls}}}}$/(kg·m²)	867637000

参数	数值	参数	数值
风轮半径R/m	63	积分系数初值${k_{{\text{PI}}}}$	20
额定功率P_N/MW	5	最佳叶尖速比${\lambda _{{\text{opt}}}}$	7.6
额定风速${\nu _{\text{n}}}$/(m·s^–1)	12	最大风能利用系数$C_{\text{p}}^{{\text{max}}}$	0.4865
最大桨距角${\beta ^{\max }}$/°	85	风轮外阻尼${D_{\text{r}}}$/(N·m·s·rad^–1)	0
最小桨距角${\beta ^{\min }}$/°	0	低速轴扭转阻尼${D_{{\text{ls}}}}$/(N·m·s·rad^–1)	6215000
风轮额定转速${\omega _{\text{n}}}$/(rad·s^–1)	1.27	发电机外阻尼${D_{\text{g}}}$/(N·m·s·rad^–1)	0
风轮最小转速$\omega _{\rm r}^{\min }$/(rad·s^–1)	0.7224	发电机转动惯量${J_{\text{g}}}$/(kg·m²)	1256.2
滤波器时间常数${\tau _{\text{f}}}$/s	0.1	风轮转动惯量${J_{\text{r}}}$/(kg·m²)	35444067
比例系数初值${k_{{\text{PP}}}}$	300	低速轴扭转的刚度${K_{{\text{ls}}}}$/(kg·m²)	867637000

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