High Frequency Component-based Pilot Protection for Photovoltaic Station Collection Line

被引：0
作者：
Chao C. [1 ]
Zheng X. [1 ]
Gui Q. [2 ]
Ye H. [2 ]
Liu Z. [2 ]
Liu H. [2 ]
Gao P. [1 ]
Tai N. [1 ]
机构：
[1] Key Laboratory of Control of Power Transmission and Conversion, Shanghai Jiao Tong University, Ministry of Education, Minhang District, Shanghai
[2] East China Branch, State Grid Corporation of China, Pudong New District, Shanghai
来源：
Dianwang Jishu/Power System Technology | 2022年 / 46卷 / 12期
基金：
中国国家自然科学基金;
关键词：
collection line; fault resistance; photovoltaic station; pilot protection; transient high frequency component;
D O I：
10.13335/j.1000-3673.pst.2022.1233
中图分类号：
学科分类号：
摘要：
The photovoltaic power generation units, whose output current phase is affected by the inverter control, presents weak feedback characteristics, resulting in the malfunction of the current differential protection and the pilot protection of collection line in a photovoltaic station. This paper analyzes the fault high-frequency additional network of the photovoltaic station collection line, and proposes the high frequency component-based pilot protection. Based on the different characteristics between the two terminal compensation voltages during the internal and external faults, the internal and external fault identification criteria are constructed. The proposed protection scheme has a strong anti-fault resistance ability with fast tripping, low requirements for the data synchronization, and not affected by the inverter control strategy. The test results show that the proposed protection scheme is able to accurately identify different types of internal and external faults, having a strong anti-noise interference ability. © 2022 Power System Technology Press. All rights reserved.
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收藏
页码：4607 / 4615
页数：8
相关论文
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