直驱式永磁同步风力发电系统的组合控制策略  

An integrated control strategy for D-PMSG wind power generation systems

作　　者：夏冰清 傅栩杰 杨文斌 项基[2] 陈晴 XIA Bingqing;FU Xujie;YANG Wenbin;XIANG Ji;CHEN Qing(Powerchina Huadong Engineering Corporation Limited,Hangzhou 311100,China;Zhejiang University,Hangzhou 310058,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,杭州311100 [2]浙江大学,杭州310058

出　　处：《浙江电力》2024年第11期57-64,共8页Zhejiang Electric Power

基　　金：国家自然科学基金(62173295);中国电建集团华东勘测设计研究院有限公司科技项目(KY2022-XNY-02-09)。

摘　　要：平滑风力发电系统的输出功率波动对电网的稳定运行十分重要。基于PCH(端口受控哈密顿)的数学模型,研究D-PMSG(直驱式永磁同步发电机)风力发电系统转速跟踪与功率平滑的组合控制策略。针对功率平滑过程中风能捕获效率低的问题,提出将转子转速平滑控制与PCH无源控制相结合的组合控制策略,使得永磁同步发电机的转子转速能够快速跟踪参考转速,提高风能捕获效率,实现直流链路电压控制,在风机额定运行范围内有效地提供功率平滑支持。通过与最大功率点跟踪及其他平滑控制策略的对比仿真,验证了所提功率平滑策略的有效性与优越性。Smoothing output power fluctuations of wind power generation systems is crucial for the stable operation of power grid.Based on the port-controlled Hamiltonian(PCH)model,an integrated control strategy for rotor speed tracking and power smoothing in directly-driven permanent magnet synchronous generator(D-PMSG)wind power generation systems is studied.To address the issue of low wind energy capture efficiency during power smoothing,a control strategy that integrates rotor speed smoothing control and PCH-based passive control is proposed.The strat⁃egy enables the rotor speed of the PMSG to quickly track the reference speed,improving wind energy capture effi⁃ciency while achieving DC link voltage control.Within the rated operating range of wind turbines,the strategy pro⁃vides effective power smoothing support.Simulation results comparing this strategy with MPPT and other smoothing control strategies demonstrate the effectiveness and superiority of the proposed power smoothing strategy.

关 键 词：D-PMSG 功率平滑 PCH无源控制 转子转速控制 直流电容电压控制 

分 类 号：TM614[电气工程—电力系统及自动化]