Overvoltage Protection Controller Design of Distributed Generation Connected to Power Grid Considering Islanding Condition

被引：6

作者：

Cha, Jae-Hun ^{[1
]}

Park, Kyung-Won ^{[2
]}

Ahn, Hong-Seon ^{[2
]}

Kwon, Kyoung-Min ^{[3
]}

Oh, Jin-Hong ^{[1
]}

Mahirane, Philemon ^{[1
]}

Kim, Jae-Eon ^{[1
]}

机构：

[1] Chungbuk Natl Univ, Sch Elect Engn, Cheongju, South Korea

[2] LS Ind Syst Corp, Anyang, South Korea

[3] Woojin Ind Syst, Taejon, South Korea

来源：

JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY | 2018年 / 13卷 / 02期

关键词：

Distributed generation; Islanding; Overvoltage; Distribution system; Microgrid;

D O I：

10.5370/JEET.2018.13.2.599

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Distributed generation (DG) is being highlighted as an alternative for future power supplies, and the number of DG systems connected to conventional power systems is steadily increasing. DG generators are designed using power electronics and can give rise to various power quality problems, such as overvoltage or overcurrent. Particularly, unintentional islanding operation can occur in a conventional power system when the power grid is separated from the DG systems. Overvoltage may occur in this situation, depending on the power generation and power consumption. However, overvoltage phenomena might not happen even when islanding occurs. Therefore, it is necessary to analyze the fault characteristics during islanding. In this study, a fault analysis of islanding operation was carried out using PSCAD/EMTDC, and a countermeasure for the overvoltage problem is proposed.

引用

页码：599 / 607

页数：9

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