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MPPT variable gain extremum seeking control method for wind energy conversion system
Author(s): 
Pages: 414-418
Year: Issue:  3
Journal: Electric Machines and Control

Keyword:  风能转换系统最大功率点追踪控制极值搜索控制变增益;
Abstract: 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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