| 风机最大功率点跟踪的失效现象 |
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| 引用本文： | 殷明慧,蒯狄正,李群,张小莲,邹云.风机最大功率点跟踪的失效现象[J].中国电机工程学报,2011,31(18). |
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| 作者姓名： | 殷明慧 蒯狄正 李群 张小莲 邹云 |
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| 作者单位： | 1. 南京理工大学自动化学院,江苏省南京市,210094
2. 江苏省电力试验研究院有限公司,江苏省南京市,210000 |
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| 基金项目： | 南京理工大学自主科研专项计划资助项目(2010ZYTS052)~~ |
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| 摘 要： | 针对具有大转动惯量和宽最大功率点跟踪(maximum power point tracking,MPPT)区间的风电机组,发现了一种在传统MPPT控制策略下出现的风机MPPT失效现象.基于对简化风机模型的平衡点及加速/减速区域的分析,从机理上解释了MPPT失效现象的产生原因,即风机的慢动态性能难以跟踪风速的快速波动.进一步,针对多种容量风电机组的仿真统计分析表明,该MPPT失效现象的发生及其对风能利用系数的降低是不能忽视的.特别是在高湍流强度的风速条件下,MPPT失效导致的风能捕获损失率可能高达10%以上.
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| 关 键 词： | 风力发电 最大功率点跟踪 最大功率点跟踪失效 |
A Phenomenon of Maximum Power Point Tracking Invalidity of Wind Turbines |
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| YIN Minghui
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KUAI Dizheng
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LI Qun
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ZHANG Xiaolian
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ZOU Yun.A Phenomenon of Maximum Power Point Tracking Invalidity of Wind Turbines[J].Proceedings of the CSEE,2011,31(18). |
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| Authors: | YIN Minghui KUAI Dizheng LI Qun ZHANG Xiaolian ZOU Yun |
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| Affiliation: | YIN Minghui1,KUAI Dizheng2,LI Qun2,ZHANG Xiaolian1,ZOU Yun1(1.School of Automation,Nanjing University of Science and Technology,Nanjing 210094,Jiangsu Province,China,2.Jiangsu Electric Power Research Institute,Nanjing 210000,China) |
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| Abstract: | A phenomenon of the invalidity of maximum power point tracking(MPPT) was discovered,which occurred in the MPPT stage of wind turbine systems with large inertia and wide MPPT range.Based on the analysis of equilibrium points and acceleration/deceleration regions of the simplified wind turbine model,the paper presented the mechanism explanation of the occurrence of the MPPT invalidity phenomenon that was the dynamic behavior of wind turbine was too slow to track the rapid variation of wind speed.Furthermore,t... |
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| Keywords: | wind power maximum power point tracking(MPPT) MPPT invalidity |
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