解决频率二次跌落的风电-抽蓄频率协调控制策略

罗远翔; 张楠; 蔡麟书; 闫钦勇

doi:10.19912/j.0254-0096.tynxb.2024-2446

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (8) : 727-736. DOI: 10.19912/j.0254-0096.tynxb.2024-2446

解决频率二次跌落的风电-抽蓄频率协调控制策略

罗远翔, 张楠, 蔡麟书, 闫钦勇

作者信息 +

COORDINATED FREQUENCY CONTROL STRATEGY OF WIND POWER PUMPED STORAGE INTEGRATION SYSTEM FOR SOLVING SECONDARY FREQUENCY DROP

Luo Yuanxiang, Zhang Nan, Cai Linshu, Yan Qinyong

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文章历史 +

摘要

为解决高比例新能源并网系统在发生负荷扰动时出现的频率跌落的问题,提出一种风电与双馈变速抽蓄机组的频率协调控制策略。首先建立系统频率响应模型,利用滑模预测控制使风电和双馈抽蓄机组对电网频率进行支撑;其次,引入转速释放函数使风电机组合理释放自身转子动能;然后,调制风电机组转速恢复曲线,并将风电机组转子动能变化与双馈抽蓄机组的功率参考值关联,构建二者协调控制机制,通过双馈抽蓄快速响应的二次出力补偿风电转速恢复阶段的功率缺额,以应对传统控制策略难以解决的频率二次跌落问题;最后在Matlab/Simulink中搭建系统仿真模型,以验证该策略的有效性。仿真结果表明,在多种场景下该策略均具有更好的调频效果,并消除了频率二次跌落和同步发电机组的出力波动。

Abstract

To address frequency drops under load disturbances in power systems with high renewable penetration, this paper proposes a coordinated frequency control strategy combining wind power and variable-speed pumped storage units. Firstly, a system frequency response model is developed, where sliding-mode predictive control enables both wind turbines and pumped storage units to support grid frequency regulation. Subsequently, a controlled rotor kinetic energy release scheme is introduced to manage the wind turbine’s inertial response. Furthermore, the wind turbine’s speed recovery curve is modulated by mapping the rotor kinetic energy variation to the power reference of the variable-speed pumped storage unit, establishing a coordination mechanism. This allows the fast secondary power response of the pumped storage unit to compensate the power deficit during wind turbine speed recovery, effectively mitigating secondary frequency drops that challenge conventional strategies. The proposed approach is validated via Matlab/Simulink simulations, demonstrating superior frequency regulation performance across scenarios, with eliminated secondary frequency drops and synchronous generator power oscillations.

导出引用

罗远翔, 张楠, 蔡麟书, 闫钦勇. 解决频率二次跌落的风电-抽蓄频率协调控制策略[J]. 太阳能学报. 2025, 46(8): 727-736 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2446

Luo Yuanxiang, Zhang Nan, Cai Linshu, Yan Qinyong. COORDINATED FREQUENCY CONTROL STRATEGY OF WIND POWER PUMPED STORAGE INTEGRATION SYSTEM FOR SOLVING SECONDARY FREQUENCY DROP[J]. Acta Energiae Solaris Sinica. 2025, 46(8): 727-736 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2446

中图分类号： TV743 TM614

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