降低光伏并网电源防雷系统屏蔽线功率损耗的研究

Weiping Luo, Yurong Wu
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引用次数: 1

摘要

为了降低光伏并网电源防雷系统上避雷屏蔽线的功率损耗,本文提出了一种采用多重阻抗对避雷屏蔽线和杆塔进行辐照的方法,以降低通过避雷屏蔽线的感应电压和电流,并利用EMTP程序对该方法进行了仿真,仿真结果证明了该方法的可行性和有效性。但系统序阻抗也会随之变化,因此有必要对整个系统保护的整定值进行调整,以满足光伏并网系统雷电屏蔽保护的需求。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Research on Reducing the Power Loss of Lightning Shield Line on Lightning Protection System of Photovoltaic Grid-Connected Power
In order to reduce power loss of lightning shield line on lightning protection system of photovoltaic grid-connected power, the paper presented a method of using multiple impedance to insolate lightning shield line and pole-tower, in order to reduce induction voltage and current passing lightning shield line, and the EMTP program has simulated the method, and the simulation results proved its feasibility and effectiveness. But the system sequence impedance will also change following, so it is necessary to adjust the setting value of the whole system protection in order to meet demands of thunder lightning shield protection on photovoltaic grid-connected system.
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