双馈风力发电低电压穿越微分平坦控制

段炼; 王洪希; 曹生志; 王蔼祥; 禹天凤

doi:10.19912/j.0254-0096.tynxb.2024-1238

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (11) : 676-684. DOI: 10.19912/j.0254-0096.tynxb.2024-1238

双馈风力发电低电压穿越微分平坦控制

段炼, 王洪希, 曹生志, 王蔼祥, 禹天凤

作者信息 +

RESEARCH ON LOW-VOLTAGE RIDE-THROUGH DIFFERENTIAL-FLATNESS CONTROL FOR DOUBLY-FED INDUCTION GENERATORS

Duan Lian, Wang Hongxi, Cao Shengzhi, Wang Aixiang, Yu Tianfeng

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文章历史 +

摘要

双馈风力发电机（DFIG）低电压穿越（LVRT）期间对网侧和转子侧PWM变流器响应速度和鲁棒性要求较高,为解决传统PI控制策略在LVRT条件下响应慢、鲁棒性不佳的问题,提出基于微分平坦理论的网侧与转子侧新型控制策略。首先阐述DFIG的网侧和转子侧在d-q轴上的数学模型,依照微分平坦理论证明系统平坦性;并设计含有前馈参考轨迹和误差反馈补偿的网侧与转子侧电流控制器;最后,在Matlab/Simulink搭建仿真模型。仿真结果表明,该控制策略提高了DFIG的穿越能力,且响应速度快,鲁棒性强。验证了微分平坦理论应用于DFIG控制的可行性与有效性。

Abstract

Doubly-fed induction generator （DFIG） low voltage ride-through （LVRT） requires high response speed and robustness for grid side and rotor side PWM converters. In order to solve the problem of slow response and poor robustness of traditional PI control strategy under the condition of low voltage ride-through, a novel control strategy based on differential flatness theory is proposed for grid side and rotor side. In this paper, the mathematical model of the grid side and rotor side of the DFIG on the d-q axis is described, and the flatness of the system is proved according to the differential flatness theory. Secondly, a two-sided differential flat current controller with feedforward reference trajectory and error feedback compensation is designed. Finally, the system simulation model is built in MATLAB /Simulink. The simulation results show that the application of this control strategy improves the ride-through capablity of DFIG during the grid low voltage period, and the response speed is fast and the robustness is strong. The feasibility and effectiveness of applying differential flatness theory to DFIG are verified.

导出引用

段炼, 王洪希, 曹生志, 王蔼祥, 禹天凤. 双馈风力发电低电压穿越微分平坦控制[J]. 太阳能学报. 2025, 46(11): 676-684 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1238

Duan Lian, Wang Hongxi, Cao Shengzhi, Wang Aixiang, Yu Tianfeng. RESEARCH ON LOW-VOLTAGE RIDE-THROUGH DIFFERENTIAL-FLATNESS CONTROL FOR DOUBLY-FED INDUCTION GENERATORS[J]. Acta Energiae Solaris Sinica. 2025, 46(11): 676-684 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1238

中图分类号： TM614

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