| 引用本文: | 王天钰,魏 星,徐家俊,王晓茹.考虑输入饱和的直驱式永磁同步风力发电系统最大功率跟踪控制[J].电力自动化设备,2015,35(7): |
| WANG Tianyu,WEI Xing,XU Jiajun,WANG Xiaoru.MPPT control considering input saturation for D-PMSG system[J].Electric Power Automation Equipment,2015,35(7): |
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| 摘要: |
| 针对具有大转动惯量、模型参数不确定性的直驱永磁同步风力发电机，为解决风机变流器输入饱和约束引发的控制稳定性问题，利用Lyapunov稳定性理论，提出一种同时考虑输入饱和与损耗转矩参数不确定性的自适应转速控制策略，使风机在低风速阶段快速跟踪最大功率点，提高对风能的捕获效率。仿真验证所提出控制器的有效性，结果表明，在系统出现输入饱和情况时，考虑饱和输入的自适应控制方法可以保证系统稳定，具有响应速度快、超调量小的优点，保证了转速跟踪的效果，实现最大风能跟踪的控制。 |
| 关键词: 直驱式永磁同步发电机 最大功率点跟踪 自适应控制 输入饱和 风电 稳定性 |
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| MPPT control considering input saturation for D-PMSG system |
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WANG Tianyu1, WEI Xing2, XU Jiajun1, WANG Xiaoru1
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1.School of Electrical Engineering，Southwest Jiaotong University，Chengdu 610031，China;2.Sichuan Electric Power Design & Consulting Co.，Ltd.，Chengdu 610016，China
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| Abstract: |
| Aiming at the control stability problem caused by the converter input saturation of the D-PMSG（Direct-driven Permanent Magnetic Synchronous Generator） with big inertia moment and uncertain model parameters，an adaptive control strategy considering both the input saturation and the uncertainty of loss torque is proposed based on the Lyapunov stability theory，which realizes the fast MPPT（Maximum Power Point Tracking） to improve the capture efficiency of wind energy at low wind speed stage. Simulations are carried out to verify the effectiveness of the proposed adaptive control strategy and results show that，it ensures the system stability during the input saturation and the speed tracking effect to realize the MPPT，with quick response and small overshoot. |
| Key words: direct-driven permanent magnetic synchronous generator maximum power point tracking adaptive control input saturation wind power stability |
