Counter-Rotating Type Tidal Stream Power Unit Mounted on a Mono-pile
Counter-Rotating Type Tidal Stream Power Unit Mounted on a Mono-pile
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安装在单桩上的反向旋转型潮流动力装置
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
Hiraki
中科院分区：
文献类型：
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作者：
Yuta;Usui;Toshiaki;Kanemoto;Kohei;Takaki;Koju;Hiraki
作者发明了一种独特的反向旋转式潮汐流动力装置，它由串联螺旋桨和双旋转电枢式无定子发电机组成。与上游型一样，前螺旋桨和后螺旋桨分别沿反向旋转方向驱动内旋转电枢和外旋转电枢，从而保持螺旋桨和电枢之间的旋转扭矩平衡。本文通过对水道中桩的输出和受力进行实验研究，获得单桩式潮汐流发电机组的设计资料。与风力涡轮机一样，在中等转速下输出最大。作用在桩上的力受到阻力、卡门涡流和串联螺旋桨的动平衡的影响，并且由于前后螺旋桨的单独旋转和相互作用旋转而具有主导频率。
The authors have invented a unique counter-rotating type tidal stream power unit, which is composed of tandem propellers and a double rotational armature type generator without a stator. The front and the rear propellers drive, as for an upstream type, the inner and the outer rotational armatures in the counter-rotating directions respectively, which keep the rotational torques counter-balanced between both propellers and armatures. This paper investigates experimentally the output and forces acting on a pile in a water channel, to get design materials of the mono-pile type tidal stream power unit. The output is maximal at the moderate rotational speed, as the same as a wind turbine. The force acting on the pile is affected by the drag, the Karman vortex and the dynamic balances of the tandem propellers, and has dominant frequencies due to not only the individual but also the interacting rotation of the front and the rear propellers.