The influence of solidity and aspect ratio on power coefficient of H-type vertical axis wind turbine, and the change of attack Angle with tip speed ratio were analyzed.

采用多流管模型分析了H型垂直风力机展弦比和实度对其功率系数的影响，并对叶片旋转过程中攻角随尖速比的变化进行了分析。

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The results show, for pitch-controlled wind turbines, that power coefficient is higher, and load is lower at high wind speed.

结果表明，变距型风力机风能利用系数高，在高风速时所受的载荷小。

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Optimal designed power system, professionally matched high power engineering low-speed large-torque engine, with reliability or endurance, and higher power per liter and torque reserve coefficient.

采用专业定制的大马力工程版低速大扭矩发动机，可靠耐久、升功率和扭矩储备更高。

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