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风能静液压传动控制技术

, PP. 1664-1668

Keywords: 流体传动与控制,能量液压传递,联合仿真,变速恒频,风力机

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Abstract:

分别从离网型和并网型角度分析了静液压传动的基本原理,提出了利用变量泵/马达电液比例控制实现风力机变速恒频功能的方法。以离网型静液压传动风力机为例,利用Simulink/AMESim建立联合仿真模型,对调节泵和马达排量实现变速恒频功能的理论进行验证。仿真结果表明:当风速变化时,通过调节泵的排量,可以使叶轮转速跟随风速变化,风力机维持在最佳叶尖速比,实现最大能量捕获;同时调节马达的排量,可以使发电机转速恒定在额定转速附近,输出恒定频率的电能。

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