1.华中科技大学电气与电子工程学院,武汉市 430074
2.强电磁技术全国重点实验室 (华中科技大学),武汉市 430074
胡张勤(2001),男,硕士研究生,主要研究方向为海上风机有功支撑能力评估;
王镜毓(1993),男,博士,副研究员,通信作者,主要研究方向为电力系统智能分析计算、电力信息物理安全防御,E-mail:jywang@hust.edu.cn;
黄思哲(2000),男,博士研究生,主要研究方向为低惯量电力系统频率动态特性分析、新能源集群主动频率支撑能力评估;
黄轶翔(2001),男,硕士研究生,主要研究方向为新能源与负荷功率预测;
石东源(1974),男,博士,教授,研究方向为电力系统软件技术、电力系统信息安全、电力系统分析计算;
姚伟(1983),男,博士,教授,研究方向为含高比例新能源的交直流电力系统稳定分析与控制、新一代电力人工智能技术及应用等。
收稿:2026-04-30,
修回:2026-06-22,
纸质出版:2026-10-01
移动端阅览
胡张勤,王镜毓,黄思哲等.基于秒级阵风预测的风电机组转速备用模式动态切换策略[J].电力建设,2026,47(10):109-121.
HU Zhangqin,WANG Jingyu,HUANG Sizhe,et al.Second‑level Gust Forecast Based Dynamic Switching Strategy for Wind Turbine Speed‑Reserve Mode[J].Electric Power Construction,2026,47(10):109-121.
胡张勤,王镜毓,黄思哲等.基于秒级阵风预测的风电机组转速备用模式动态切换策略[J].电力建设,2026,47(10):109-121. DOI: 10.12204/j.issn.1000-7229.2026.10.009.
HU Zhangqin,WANG Jingyu,HUANG Sizhe,et al.Second‑level Gust Forecast Based Dynamic Switching Strategy for Wind Turbine Speed‑Reserve Mode[J].Electric Power Construction,2026,47(10):109-121. DOI: 10.12204/j.issn.1000-7229.2026.10.009.
目的
2
高比例风电并网导致系统等效惯量下降,频率稳定问题突出,风电的大规模接入使该问题更为复杂。阵风波动剧烈、随机性强,现有确定性风速预测方法难以捕捉其高频瞬变特征,导致风机转速备用模式切换滞后与误动,制约机组的暂态频率支撑能力。为提升风机的调频性能,提出了一种融合概率预测与不确定性感知的自适应切换策略。
方法
2
首先,构建基于去噪扩散概率模型与Transformer融合架构的秒级阵风概率预测模型,引入风机多维度状态参数作为辅助条件,通过蒙特卡罗采样生成概率预测轨迹。其次,设计基于动态置信走廊的自适应切换策略,构建动作阈值与返回阈值作为模式切换的依据;对置信走廊穿越阈值区域的模糊决策场景,采用概率评估方法计算风速超越阈值的概率,依据概率阈值来实现超速减载与低速减载模式的前瞻性主动切换。
结果
2
基于某海上风电场数据采集与监视控制系统(supervisory control and data acquisition,SCADA)数据的仿真表明:所提秒级阵风概率预测模型在预测准确性上比长短期记忆(long short-term memory,LSTM)网络、时间卷积网络(temporal convolutional network,TCN)模型更优;所提预测模型在自适应切换策略中将平均切换点的时间提前3.6 s,预测可靠性与响应精度均有较大提升,显著提升了阵风场景下的风机备用功率裕度。
结论
2
所提模型与方法通过高置信概率预测与不确定性感知决策,实现了风电机组转速备用模式从“被动响应”到“主动预判”的转换,有效抑制了因阵风预测不准导致模式频繁切换所引发的控制误动,在保障机组安全运行的同时最大化暂态调频能力,为高比例风电电力系统的频率稳定控制提供了可行方案。
Objective
2
High wind penetration reduces system inertia and threatens frequency stability,and the large-scale integration of wind power makes this problem more complex. Gusts are highly fluctuating and random; existing deterministic wind speed prediction methods cannot capture their high-frequency transient features, causing lag and misoperation in rotor speed reserve mode switching and limiting the turbine's transient frequency support capability. To improve frequency regulation,an adaptive switching strategy integrating probabilistic prediction and uncertainty awareness was proposed.
Methods
2
A second-level gust probabilistic prediction model was built using a denoising diffusion probabilistic model (DDPM)-Transformer architecture, with multi-dimensional turbine state parameters as auxiliary conditions, and Monte Carlo sampling was used to generate probabilistic prediction trajectories. An adaptive switching strategy based on a dynamic confidence corridor was designed, using action and return thresholds as the basis for mode switching. For fuzzy decision scenarios where the confidence corridor crosses the threshold region, the probability of wind speed exceeding the threshold was calculated, and proactive switching between over-speed deloading (OSD) and under-speed deloading (USD) modes was achieved based on the probability threshold.
Results
2
Simulations based on SCADA data from an offshore wind farm show that the proposed second-level gust probabilistic prediction model outperforms long short-term memory (LSTM) and temporal convolutional network (TCN) models in prediction accuracy. In the adaptive switching strategy, the proposed prediction model advances the average switching point by 3.6 s, significantly improves prediction reliability and response accuracy, and significantly enhances the turbine reserve power margin under gust scenarios.
Conclusions
2
Through high-confidence probabilistic prediction and uncertainty-aware decision-making, the proposed model and method achieve a shift from passive response to active anticipation for wind turbine speed reserve modes, suppress control misoperations caused by frequent mode switching due to inaccurate gust prediction, maximize transient frequency regulation capability while ensuring turbine safety, and offer a feasible solution for frequency stability control in power systems with high wind penetration.
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