基于虚拟阻抗与功率指令优化的构网型永磁风电机组故障穿越控制策略

李辉; 张博; 杜炜; 罗曼丹; 黄汉琦; 张浩

doi:10.19912/j.0254-0096.tynxb.2024-1327

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (12) : 725-734. DOI: 10.19912/j.0254-0096.tynxb.2024-1327

基于虚拟阻抗与功率指令优化的构网型永磁风电机组故障穿越控制策略

李辉¹, 张博¹, 杜炜², 罗曼丹², 黄汉琦¹, 张浩¹

作者信息 +

FAULT RIDE-THROUGH CONTROL STRATEGY FOR GRID-FORMING PERMANENT MAGNET WIND TURBINES BASED ON VIRTUAL IMPEDANCE AND POWER COMMAND OPTIMIZATION

Li Hui¹, Zhang Bo¹, Du Wei², Luo Mandan², Huang Hanqi¹, Zhang Hao¹

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文章历史 +

摘要

针对构网型永磁风电机组并网系统在电网故障下的故障电流和暂态失稳问题,提出基于有功功率指令与虚拟阻抗调节的构网型永磁同步风电机组（GFM-WTPMSG）故障穿越控制策略。首先,建立基于虚拟同步控制的构网型永磁同步风电机组数学模型;然后,依据故障电流阈值和暂态功角稳定约束,针对不同电网电压跌落深度,提出基于功率指令优化与自适应虚拟阻抗调节的控制策略;最后,对不同功率指令及虚拟阻抗值对故障穿越性能与暂态稳定性的影响进行仿真,并基于RT-LAB硬件在环仿真平台进行验证。结果表明,所提控制策略可有效降低故障电流、提高并网系统暂态稳定性,实现构网型永磁同步风电机组故障穿越能力的提升。

Abstract

The grid-connected system of grid-based permanent magnet wind turbines has the problems of fault current and transient instability under the condition of grid fault, and the traditional grid-based fault ride-through control strategy is difficult to apply, which makes it difficult to maintain the operation of the grid before and after the fault. To this end, a fault ride-through control strategy for grid-forming permanent magnet synchronous wind turbine grid-forming wind turbine permanent magnet synchronous generator（GFM-WTPMSG） based on active power command and virtual impedance adjustment was proposed. Firstly, a mathematical model of grid-forming permanent magnet synchronous wind turbine based on virtual synchronous control was established. Then, according to the fault current threshold and transient power angle stability constraints, the control strategy under different grid voltage drop depths was proposed based on power command optimization and adaptive virtual impedance adjustment. Finally, the effects of different power commands and virtual impedances on the transient stability were simulated, and verified based on the RT-LAB hardware-in-the-loop simulation platform, the results show that the proposed control strategy can effectively reduce the fault current to the threshold range and improve the transient stability of the grid-connected system, and realize fault ride-through under the control of the grid-based structure.

导出引用

李辉, 张博, 杜炜, 罗曼丹, 黄汉琦, 张浩. 基于虚拟阻抗与功率指令优化的构网型永磁风电机组故障穿越控制策略[J]. 太阳能学报. 2025, 46(12): 725-734 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1327

Li Hui, Zhang Bo, Du Wei, Luo Mandan, Huang Hanqi, Zhang Hao. FAULT RIDE-THROUGH CONTROL STRATEGY FOR GRID-FORMING PERMANENT MAGNET WIND TURBINES BASED ON VIRTUAL IMPEDANCE AND POWER COMMAND OPTIMIZATION[J]. Acta Energiae Solaris Sinica. 2025, 46(12): 725-734 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1327

中图分类号： TM614

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