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首页> 外文期刊>Electric power systems research >A simplified technique for detecting disconnections along down conductors in wind turbine blades
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A simplified technique for detecting disconnections along down conductors in wind turbine blades

机译：一种用于检测沿风力涡轮机叶片中下导体的断开连接的简化技术

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摘要

This study proposes an application of the half-wave dipole-antenna theory and electrostatic capacitance to detect disconnected locations of down conductors in wind turbine blades. With the help of the finite-difference time-domain (FDTD) method, simulation models of the down conductors were employed to calculate the current distributions and capacitance values along the down conductors while changing their disconnected locations. In both techniques, down conductors were simulated by a computer software using the manufacturer's data; these were used to detect the disconnected locations at varying lengths along the conductor. The simulation results were used to obtain trend curves. To evaluate the performances of the proposed techniques, experiments were conducted using a reduced-scale model and a small 400 kW wind turbine. A comparison of the simulation and experimental results showed that the proposed techniques exhibit good performance in the detection of disconnected locations.
机译：这项研究提出了半波偶极子天线理论和静电电容的应用，以检测风力涡轮机叶片中引下线的断开位置。借助时域有限差分法（FDTD），采用引下线的仿真模型来计算沿着引下线的电流分布和电容值，同时改变其断开位置。在这两种技术中，引下线都是通过计算机软件使用制造商的数据进行模拟的。这些用于检测沿导体长度变化的断开位置。仿真结果用于获得趋势曲线。为了评估所提出技术的性能，使用缩小模型和小型400 kW风力涡轮机进行了实验。仿真和实验结果的比较表明，所提出的技术在断开位置的检测中表现出良好的性能。

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