构网型直驱风力机直流侧配置储能的一次调频控制策略

吴增屿; 赵波; 刘磊; 张宽

doi:10.19912/j.0254-0096.tynxb.2024-1369

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (12) : 671-680. DOI: 10.19912/j.0254-0096.tynxb.2024-1369

构网型直驱风力机直流侧配置储能的一次调频控制策略

吴增屿, 赵波, 刘磊, 张宽

作者信息 +

GRID-FORMING DWTG PRIMARY FREQUENCY REGULATION CONTROL WITH DC SIDE ENERGY STORAGE

Wu Zengyu, Zhao Bo, Liu Lei, Zhang Kuan

Author information +

文章历史 +

摘要

针对构网型风电机组在电网频率故障期间无法提供良好一次调频能力的问题,提出一种基于构网型直驱风力机直流侧配置储能的一次调频控制策略。首先,在网侧变流器中采用虚拟同步发电机（VSG）控制策略,能在电网频率变化瞬间提供功率支撑;其次,在电网频率跌落时,直流侧电压快速稳定至参考值,机侧变流器稳定运行在最大功率跟踪模式,网侧变流器能增发功率,使得风电机组具备一次调频的能力;最后,通过Matlab/Simulink平台搭建单机系统、四机两区域系统仿真验证了该方案的有效性。实验结果表明,相比于构网型控制的风电机组,所提出的控制策略在负荷突变期间,增发功率提高了24.2%,频率跌落深度减少了60%,具备良好的一次调频能力。

Abstract

To address the challenge of insufficient primary frequency regulation in grid-connected wind turbines during frequency disturbances, a control strategy is proposed that integrates energy storage on the DC side of direct-drive wind turbines. Firstly, this strategy incorporates a virtual synchronous generator （VSG） control method in the grid-side converter to deliver immediate power support during frequency fluctuations. Furthermore, the addition of a DC-side energy storage system ensures rapid stabilization of the DC voltage to its reference value during frequency dips, allowing the machine-side converter to maintain stable operation in maximum power point tracking mode. Meanwhile, the grid-side converter enhances power output, enabling the wind turbine to perform primary frequency regulation. The proposed approach is validated using simulations of a single-machine system and a four-machine two-area system in Matlab/Simulink. Results indicate that, compared to traditional grid-connected wind turbines, this method increases power output by 24.2% and reduces frequency drop depth by 60% during sudden load changes, demonstrating superior primary frequency regulation capabilities.

导出引用

吴增屿, 赵波, 刘磊, 张宽. 构网型直驱风力机直流侧配置储能的一次调频控制策略[J]. 太阳能学报. 2025, 46(12): 671-680 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1369

Wu Zengyu, Zhao Bo, Liu Lei, Zhang Kuan. GRID-FORMING DWTG PRIMARY FREQUENCY REGULATION CONTROL WITH DC SIDE ENERGY STORAGE[J]. Acta Energiae Solaris Sinica. 2025, 46(12): 671-680 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1369

中图分类号： TM614

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