
上海电力大学 电气工程学院,上海,200090
Published:2025
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郑佳雯,薛花,王雅妮.基于DR-HVDC送出的PMSG海上风电集群无源一致性稳定控制方法[J].智慧电力,2025,53(9):81-90.
ZHENG Jiawen, XUE Hua, WANG Yani. Passivity-based Consensus Stability Control Method for PMSG Offshore Wind Farm Clusters Delivered via DR-HVDC[J]. 2025, 53(9): 81-90.
郑佳雯,薛花,王雅妮.基于DR-HVDC送出的PMSG海上风电集群无源一致性稳定控制方法[J].智慧电力,2025,53(9):81-90. DOI: 10.20204/j.sp.2025.09010.
ZHENG Jiawen, XUE Hua, WANG Yani. Passivity-based Consensus Stability Control Method for PMSG Offshore Wind Farm Clusters Delivered via DR-HVDC[J]. 2025, 53(9): 81-90. DOI: 10.20204/j.sp.2025.09010.
基于二极管不控整流器(DR)的高压直流(HVDC)输电是大规模永磁同步电机(PMSG)海上风电集群并网的主流方案,但传统矢量控制存在稳定域窄的问题。为此,提出PMSG海上风电集群无源一致性稳定控制方法。首先,外环设计有功功率-电压、无功功率-频率控制器,通过一致性方法准确求取PMSG并网电压与频率期望轨迹;其次,针对PMSG非线性强耦合特性,内环构建无源一致性控制器,驱动各风机网侧变换器快速跟踪期望轨迹,实现集群全局渐进稳定。dSPACE实验表明,在陆上/海上换流站电压突降故障工况下,所提方法可实现风电集群稳定协同运行,保障并网电压与频率平稳。研究成果为海上风电场安全运维提供了理论支撑。
Diode rectifier-based high-voltage direct current (DR-HVDC) transmission is a dominant solution for the grid integration of large-scale permanent magnet synchronous generator (PMSG) offshore wind farm clusters. However, traditional vector control schemes suffer from a limited stability margin. To address this, a passivity-based consensus stability control method is proposed for PMSG wind farm clusters. First, outer-loop controllers for active power-voltage and reactive power-frequency regulation are designed, which leverage a consensus algorithm to precisely determine the desired trajectories of grid-connected voltage and frequency for PMSGs. Second, to handle the strong nonlinear coupling characteristics of PMSGs, an inner-loop passivity-based consensus controller is constructed. This drives all wind turbine grid-side converters (GSCs) to rapidly track the desired trajectories, and leads to global asymptotic stability for the entire clusters. dSPACE experiments demonstrate that under voltage sag faults at onshore/offshore converter stations, the proposed method ensures the stable cooperative operation of the wind farm clusters while maintaining grid-connected voltage and frequency. This research provides theoretical support for the safe operation and maintenance of offshore wind farms.
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