| 风能转换系统的MPPT变增益极值搜索控制 |
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| 引用本文： | 纪志成,朱芸,孟涛. 风能转换系统的MPPT变增益极值搜索控制[J]. 电机与控制学报, 2009, 13(3) |
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| 作者姓名： | 纪志成 朱芸 孟涛 |
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| 作者单位： | 江南大学,电气自动化研究所,江苏,无锡,214122 |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | 针对传统最大功率点追踪(MPPT)极值搜索法固定积分增益存在的不足,依据不同积分系数对系统的影响,提出了一种MPPT变增益极值搜索法,使积分增益随叶尖速比和功率系数之间平均相位移的变化而变化.仿真结果表明,采用改进后的MPPT极值搜索法,平均风能捕获率较传统的极值搜索法有所提高,且当系统达到稳定运行点后,叶尖速比的标准差较积分增益为0.01时降低了0.05,有效地抑制了系统在稳定点附近的振动,提高了系统的动态性能.
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| 关 键 词： | 风能转换系统 最大功率点追踪控制 极值搜索控制 变增益 |
MPPT variable gain extremum seeking control method for wind energy conversion system |
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| JI Zhi-cheng,ZHU Yun,MENG Tao. MPPT variable gain extremum seeking control method for wind energy conversion system[J]. Electric Machines and Control, 2009, 13(3) |
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| Authors: | JI Zhi-cheng ZHU Yun MENG Tao |
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| Affiliation: | Institute of Electrical Automation;Jiangnan University;Wuxi 214122;China |
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| Abstract: | In order to overcome the trouble brought by the fixed integral gain in the traditional maximum power point tracking(MPPT) extremum seeking control,a new method of MPPT extremum seeking control method was proposed for wind energy converter system according to the different results of the different integral gains.Through this method,the integral gain varies with the average phase shift between tip speed ratio and power coefficient.The simulation results indicated that the improved extreme seeking control meth... |
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| Keywords: | wind energy conversion system maximum power point tracking extremum seeking control |
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