一种新型多端光伏直流配电网保护方案

2019 IEEE 2nd International Conference on Electronic Information and Communication Technology (ICEICT) Pub Date : 2019-01-01 DOI:10.1109/ICEICT.2019.8846294

Congbo Wang, K. Jia, He Zhao, Zijin Li, Wei Li, Bohan Liu

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引用次数: 0

摘要

为了满足多端光伏直流配电网故障区域的快速隔离，提出了一种新的直流保护方案。该方案是基于直流电流在故障暂态下的差分系数，即直流电流的特性。该特性通过不同的数值设置来实现对多端光伏直流配电网的保护。该方案可以在不需要通信的情况下实现断层隔离，满足速度要求。该方案在多端PV环直流配电网中进行了仿真，能够有效地检测网络故障。理论分析和仿真结果验证了该保护方法的有效性和优越性。

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A Novel Protection Scheme for DC Distribution Network with Multi-terminal PV

For the sake of meeting the fast isolation of faulted areas for DC distribution network with multi-terminal PV, a novel DC protection scheme is proposed. This scheme is on the basis of the DC current differential coefficient under fault transients, which are the characteristics of the DC current. This property is banded with different settings of value to realize the protection of the DC distribution network with multi-terminal PV. The proposed scheme can realize isolation of faulted areas without communication to satisfy the speed. This scheme, which is simulated on the looped DC distribution network with multi-terminal PV, can detect network faults. The theoretical analysis and simulation results verify that the proposed protection has the effectiveness and superiority.

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来源期刊

2019 IEEE 2nd International Conference on Electronic Information and Communication Technology (ICEICT)

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