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METHOD OF ESTIMATING SHORT CIRCUIT CURRENT AVAILABLE BY ANALYSIS OF DC CHARGING CIRCUIT

机译:直流充电电路分析估算短路电流的方法

摘要

A system and method of dynamically estimating the short circuit current availability (SCCA) at a node in an alternating current electrical distribution system by examining the spectral composition of current drawn by a direct current charging circuit connected to the node. A correlative relationship between the total harmonic current distortion (THDi) in the current drawn by the charging circuit and the SCCA at the node is established for a particular charging circuit. An estimation of the SCCA at the node is accomplished by taking current measurements of current drawn by the charging circuit analyzing those current measurements to determine the THDi and estimating a corresponding value of SCCA based on the determined THDi. A method is also provided for calibrating a particular charging circuit to have a reactance and resistance suitable for use in estimating SCCA.
机译:一种通过检查由连接到该节点的直流充电电路汲取的电流的频谱组成来动态估计交流配电系统中的节点处的短路电流可用性(SCCA)的系统和方法。对于特定的充电电路,建立了充电电路汲取的电流中的总谐波电流失真(THDi)与节点处的SCCA之间的相关关系。节点处的SCCA估算是通过对充电电路汲取的电流进行电流测量来进行的,这些电流分析了这些电流测量以确定THDi并根据确定的THDi估算了相应的SCCA值。还提供一种用于将特定的充电电路校准为具有适用于估计SCCA的电抗和电阻的方法。

著录项

  • 公开/公告号IN2013CN03494A

    专利类型

  • 公开/公告日2016-06-10

    原文格式PDF

  • 申请/专利权人

    申请/专利号IN3494/CHENP/2013

  • 发明设计人 SMITH TIMOTHY LEE;

    申请日2013-05-03

  • 分类号G01R31/02;G01R31/12;

  • 国家 IN

  • 入库时间 2022-08-21 14:25:39

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