A Non-unit Protection Scheme for DC Microgrid Based on Local Measurements

被引：255

作者：

Meghwani, A. ^{[1
]}

Srivastava, S. C. ^{[1
]}

Chakrabarti, S. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Elect Engn, Kanpur 208016, Uttar Pradesh, India

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2017年 / 32卷 / 01期

关键词：

Current derivatives; DC microgrid; local measurements; nonunit protection; DISTRIBUTION-SYSTEMS; SHORT-CIRCUIT; GENERATION; LOCATION;

D O I：

10.1109/TPWRD.2016.2555844

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：

This paper proposes a nonunit protection scheme for DC microgrids (DC MGs) utilizing only local measurements. This scheme is developed based on the natural characteristics of DC current and its first and second derivatives under fault transients. Since it is based on local measurements, the problems associated with the communication delay are avoided. The selected protection scheme detects and discriminates the faults within a few microseconds of its inception. In this paper, a method to calculate the thresholds, used for the protection scheme, is also discussed. The proposed scheme is validated on a ring-type DC MG architecture under different fault scenarios and tested through MATLAB/Simulink simulations.

引用

页码：172 / 181

页数：10

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