舒进, 郝治国, 张保会, 薄志谦. 风电场的集群功率优化控制[J]. 中国电机工程学报, 2011, 31(34): 10-19,4. DOI: 10.13334/j.0258-8013.pcsee.2011.34.024
引用本文: 舒进, 郝治国, 张保会, 薄志谦. 风电场的集群功率优化控制[J]. 中国电机工程学报, 2011, 31(34): 10-19,4. DOI: 10.13334/j.0258-8013.pcsee.2011.34.024
SHU Jin, HAO Zhi-guo, ZHANG Bao-hui, BO Zhi-qian. Wind Farm Coordinated Control for Power Optimization[J]. Proceedings of the CSEE, 2011, 31(34): 10-19,4. DOI: 10.13334/j.0258-8013.pcsee.2011.34.024
Citation: SHU Jin, HAO Zhi-guo, ZHANG Bao-hui, BO Zhi-qian. Wind Farm Coordinated Control for Power Optimization[J]. Proceedings of the CSEE, 2011, 31(34): 10-19,4. DOI: 10.13334/j.0258-8013.pcsee.2011.34.024

风电场的集群功率优化控制

Wind Farm Coordinated Control for Power Optimization

  • 摘要: 以降低风电场尾流损失、优化风场出力为目标,设计基于Laguerre函数非线性预测控制(nonlinear modelpredictive control,NLMPC)方案的风场集群控制器。该控制器应用风场动态尾流模型,通过NLMPC统一调整风场内各机组转速以提升风场功率。在控制器设计中,使用有效风速预测误差校正对预测模型失配及超短期风速预测误差进行补偿,引入Laguerre函数降低滚动时域优化计算负担并分析了控制器对风速预测误差的鲁棒性能。仿真研究表明,集群控制器能够在不同风速条件下提升风场功率、降低优化计算负担,且对风速预测模型失配与风场自然风速预测误差具有鲁棒性。

     

    Abstract: This paper presents a novel wind farm Laguerre function based nonlinear model predictive control(NLMPC) coordinated controller for the wake loss reduction and the power capture optimization.According to the NLMPC with the dynamic wake model,the controller can increase the farm power efficiently by regulating all wind turbine generators(WTGs) in the farm.In the controller,predicted effective wind speed error correction was proposed to compensate the predictive model mismatch and Laguerre functions were introduced for reducing the burden of receding horizon optimization.The controller robust performance for the very-short term wind speed forecasting,which is critical for the practical application,was discussed.Simulation study shows that,the wind farm coordinated controller can increase the farm total power effectively in different wind conditions and reduce the time of receding horizon optimization.In addition,the controller has robust performance to the predictive model mismatch and free wind speed forecasting error.

     

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