检索结果-内蒙古大学图书馆

fault judgment method for Feeder in Smart Distribution Network Based on Voltage Phase Comparison

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS 2023年第4期59卷 4904-4913页

作者： Cong, Wei Wang, Zeqian Zhang, Zijin Wei, Zhen Han, Aoyang An, Shuhuai Shandong Univ Key Lab Power Syst Intelligent Dispatch & Control Jinan 250061 Peoples R China Qingdao Power Supply Co Qingdao 266002 Peoples R China

A large number of distributed generations (DGs) are penetrating into smart distribution network (SDN). Due to complicated fault characteristics and control strategies of DG, it is difficult for pilot protection dependent on correct identification of fault direction to reliably locate fault. A fault detection method derived from the judgement on the integrity of the protected line model is proposed in this paper. Instead of the analysis on the explicit fault characteristics of DG, the proposed method emphasizes the mathematical model of the protected line. Firstly, an elaborately-selected physical quantity is defined based on the mathematical constraints of the model. Then, the integrity of the model can be judged by analyzing the variation trend of the defined physical quantity in case of the faults either internal or external to the line in question. The results of fault detection based on the integrity of the protected line model can be used as the basic information for pilot protection to constitute the fault judgment method. In this paper, the reference voltage is defined as the physical quantity to judge whether the line model is intact. The setting principles of the impedance in reference voltage are analyzed in detail, so that the proposed method can adapt to the operating characteristics of smart distribution network. Simulation confirms that the proposed method is basically unaffected by the fault characteristics of DG. With help of the identification on the integrity, the pilot protection is improved to accurately locate the fault section.

关键词： index terms-fault judgment method integrity of protected line model reference voltage voltage phase comparison

来源：评论

学校读者我要写书评

暂无评论

fault judgment method for Feeder in Smart Distribution Network Based on Voltage Phase Comparison

Fault Judgment Method for Feeder in Smart Distribution Netwo...

引用

13th International Symposium on Linear Drives for Industry Applications (LDIA)

关键词： index terms-fault judgment method integrity of protected line model reference voltage voltage phase comparison

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：