| 引用本文: | 秦生升,胡国文,顾春雷,李杜.风力发电系统的恒功率非线性H∞鲁棒控制[J].控制理论与应用,2012,29(5):617~622.[点击复制] |
| QIN Sheng-sheng,HU Guo-wen,GU Chun-lei,LI Du.Nonlinear H-infinity robust control of constant power for wind power system[J].Control Theory and Technology,2012,29(5):617~622.[点击复制] |
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| 风力发电系统的恒功率非线性H∞鲁棒控制 |
| Nonlinear H-infinity robust control of constant power for wind power system |
| 摘要点击 1874 全文点击 2255 投稿时间：2010-07-13 修订日期：2011-02-21 |
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| DOI编号 10.7641/j.issn.1000-8152.2012.5.CCTA100816 |
| 2012,29(5):617-622 |
| 中文关键词 风力发电机组 变桨距 恒功率 状态反馈线性化 非线性H∞鲁棒控制 |
| 英文关键词 wind turbine variable pitch constant power feedback linearization nonlinear H-infinity robust control |
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| 中文摘要 |
| 风力发电系统传统控制器的缺点在于, 基于某一工况点的局部线性化方法无法实现全局范围的精确控制, 且传统的控制理论无法应对内外干扰. 本文将精确反馈线性化方法与线性H∞理论相结合设计非线性H∞控制器. 首先用微分几何精确线性化方法将非线性风电模型全局线性化, 然后运用线性H∞控制理论对此线性系统设计控制器, 将两者结合有原风电系统的非线性H∞变桨距控制器. 最后对12 m/s至24 m/s阶跃风, 12 m/至22 m/s骤变风, 18 m/s至20 m/s随机风, 以及风力机转动惯量下降10%的情况进行仿真, 能实现风机转速及输出功率的恒定. 验证了该控制器在全风速段的精确控制, 并且具有良好鲁棒性. |
| 英文摘要 |
| The conventional wind turbine controller can not realize the global range control because of its local linearization at specific operating point. It neither provides the rejection of internal and external disturbances. In our approach, the nonlinear model of the wind turbine is converted to a global linear model by using the differential geometry method. For this global linear model, a linear H-infinity variable pitch controller is designed for the existing wind power system. Simulations of the control system are carried out for 12--24 m/s step wind, 12--22 m/s suddenly change wind, 18--20 m/s random wind, and 10% reduction of wind turbine rotary inertia. Results show that the wind turbine speed and the output power are maintained at constant values as desired, showing desirable performances and robustness of the control. |
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