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大型风力发电机偏航系统控制策究现状及展望

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Keywords: 风力发电机,偏航系统,控制策略,经济运行

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Abstract:

偏航系统控制策略直接决定着风力发电系统的经济效益。本文在介绍偏航系统工作原理的基础上,把风力发电机偏航系统控制策略分为重启对风策略和执行对风策略,并分别评述了研究现状。分析结果表明当前业界的研究热点主要集中于偏航系统执行对风策略方面,偏航系统重启对风策略新的研究开展较少。文中在量化分析偏航系统实际运行数据、风电场风速风向实测数据及风电机组功率曲线的基础上,指出传统的偏航系统重启对风策略存在过多将偏航系统寿命消耗在低风速区的不足,影响了偏航系统寿命周期综合经济效益;偏航系统重启对风策略制定需综合考虑风电场实际风能特征、风电机组发电功率特征等因素,研究能实现偏航系统动作寿命的高效利用的新型重启对风策略具有重要的价值,值得关注。

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