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首页> 外文期刊>Power Delivery, IEEE Transactions on >Capacitive Power Tapping From Insulated Shield Wire of Overhead High Voltage Transmission Lines With Tuning
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Capacitive Power Tapping From Insulated Shield Wire of Overhead High Voltage Transmission Lines With Tuning

机译：高压屏蔽线的电容式功率攻丝带调谐的顶部高压输电线路

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摘要

Due to a lack of high and stable power supplies for large-scale online monitoring devices, the intelligent development of high voltage transmission lines has always been restricted. This paper presents a method for capacitive power tapping from an insulated shield wire of overhead high voltage transmission lines with tuning. A general equivalent model, which considers the influence of line sag and landform on the equivalent circuit parameters, is established. The calculated equivalent circuit parameters show good agreement with the field measured data obtained by a 220 kV single-circuit transmission line. In order to maximize the tap-off power, a nonlinear tuning method is proposed since linear tuning can cause an overvoltage problem, and a tuned reactor is developed. Based on the measured equivalent circuit parameters, an experiment platform is built in the laboratory to measure the tap-off power under different resistive loads. The experimental results indicate that the maximum power is about 900 W, which represents an improvement of 80% compared with the maximum power without tuning. Additionally, the tuned reactor shows good robustness to the perturbation of equivalent circuit parameters, which validates the effectiveness of the proposed power tapping method.
机译：由于缺乏高稳定的电源用于大型在线监控设备，始终受到高压传输线的智能开发。本文介绍了一种用于从带调谐的顶上高压传输线的绝缘屏蔽线电容电容攻丝的方法。建立了一般等效模型，其考虑了线索和地貌对等效电路参数的影响。计算的等效电路参数与由220kV单电路传输线获得的现场测量数据显示出良好的一致性。为了最大化抽头电源，提出了一种非线性调谐方法，因为线性调谐可能导致过压问题，并且开发了调谐电抗器。基于测量的等效电路参数，在实验室内建立了实验平台，以测量不同电阻负载下的抽头功率。实验结果表明，最大功率约为900W，与未调谐的最大功率相比，最大功率约为80％。另外，调谐电抗器对等效电路参数的扰动显示出良好的稳健性，其验证了所提出的功率挖掘方法的有效性。

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