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Islanding detection device, islanding detection method, and islanding detection program

机译：岛屿检测装置，岛屿检测方法和岛屿检测程序

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摘要

PROBLEM TO BE SOLVED: To improve the detection accuracy of fluctuated higher harmonic voltages and detect occurrence of a solo operation more accurately.;SOLUTION: A reactive power step injection unit 7 of a solo-operation detection device calculate at a harmonic voltage calculation unit 18: a total harmonic voltage distortion based on total harmonic voltages including all of second to seventh harmonic voltages; and a total harmonic voltage distortion A based on harmonic voltages of orders having levels less than a threshold level excluding harmonic voltages of orders having levels equal to or greater than the threshold level in stationary harmonic voltages. In addition, a step injection occurrence-conditions determination unit 19 determines occurrence of harmonic voltages when either the total harmonic voltage distortion or the total harmonic voltage distortion A exceeds a step injection determination criteria.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT

机译：要解决的问题：提高波动更高的谐波电压的检测精度，并更精确地检测独奏操作的发生。;解决方案：在谐波电压计算单元18处计算独奏操作检测装置的无功功率步进喷射单元7 ：基于总谐波电压的总谐波电压失真，包括秒为第七谐波电压的全部谐波电压; 并且基于阈值电压的总谐波电压失真，其级别小于阈值水平，不包括具有等于或大于固定谐波电压中的阈值水平的谐波电压的谐波电压。另外，步进喷射发生 - 条件确定单元19确定总谐波电压失真或总谐波电压失真A超过步进喷射确定标准时的发生。;所选绘图：图1;版权：（C） 2019年，JPO＆Inpit

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公开/公告号JP6919449B2

专利类型
公开/公告日2021-08-18

原文格式PDF
申请/专利权人株式会社明電舎;
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申请/专利号JP20170179981
发明设计人松井大輔;
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申请日2017-09-20
分类号H02J3/38;
国家 JP
入库时间 2022-08-24 20:39:08

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