| 引用本文: | 李先允,陈小虎,唐国庆.大型双馈风机稳态运行特性的仿真研究[J].电力自动化设备,2005,(12):6-9,38 |
| .Simulative study on steady-state performance of DFIG[J].Electric Power Automation Equipment,2005,(12):6-9,38 |
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| 摘要: |
| 利用Weibull分布的风速统计模型，建立了适用于双馈风机DFIG（Double FedInduction Generator）仿真研究的合成风速数学模型，并结合一个实际的DFIG系统．对DFIG的稳态运行特性进行了仿真研究。从仿真结果可见：当渐进风起作用时．有功功率和无功功率均增加．并快速达到设定值：当阵风开始起作用后，有功功率和无功功率均未发生变化．电压基本平稳．风机的运行特性较好．同时输出功率保持稳定。通过对大型变速双馈电机稳态运行特性的仿真研究表明．对于变速变浆矩风机．通过调节风轮转速．使其在给定的风速条件下保持风能利用系数达到最优．就可以实现对风机机械功率的最优控制。但是．浆矩角的变化，必然限制风力发电机的功率达到其额定值。 |
| 关键词: 双馈风机 电磁暂态 风能 电力系统 |
| DOI： |
| 分类号:TM614 |
| 基金项目:江苏省高校自然科学基金 |
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| Simulative study on steady-state performance of DFIG |
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LI Xian-yun CHEN Xiao-hu TANG Guo-qing
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| Abstract: |
| A composite wind speed model based on wind speed statistic model in Weibull distribution is established for DFIG(Double Fed Induction Generator) simulation. The steady-state performance of DFIG is studied with a practical system. Simulative results are summarized. The ramp component of wind speed can increase both active and reactive powers to set values quickly. While the gust component causes no changes in active and reactive powers,the voltage and output power keep stable and wind turbine runs well. Simulations show that,the optimal control of mechanical power for DFIG can be realized by adjusting the speed of turbine to keep the wind power utility factor optimal. While the change of pitch angle will obstruct the power of wind turbine to meet its rating. |
| Key words: DFIG electromechanical transient wind power electric power system |
