Countermeasures on preventing backup protection mal-operation during load flow transferring

被引：7
|
作者：
Lin, Xiangning [1 ]
Yu, Kun [1 ]
Tong, Ning [1 ]
Li, Zhengtian [1 ]
Khalid, Muhammad Shoaib [1 ]
Huang, Jingguang [2 ]
Li, Zhongqing [3 ]
Zhang, Rui [4 ]
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China
[2] Three Gorges Univ, Coll Elect Engn & New Energy, Yichang 443002, Peoples R China
[3] China Elect Power Res Inst, Beijing 100192, Peoples R China
[4] State Power Econ Res Inst, Beijing 100761, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS | 2016年 / 79卷
基金：
中国国家自然科学基金;
关键词：
Backup protection; Load flow transferring; Cascading trip; Adaptive adjustment;
D O I：
10.1016/j.ijepes.2015.12.027
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：
Removal of transmission lines in power systems may result in load flow transferring and unreasonable operations of backup protections, which may develop into cascading tripping accidents and even blackouts. Traditional backup protection based on local measurement information has disadvantages in preventing from cascading trip because it cannot distinguish the over load reason between due to faults and due to load flow transferring. On the premise that the load flow transferring can be identified based on wide-area coordination system, concise adaptive adjustment methods for the operation characteristics of zone III distance protection and overcurrent protections are proposed to avoid the maloperation caused by load flow transferring. Meanwhile, their backup protection functionality can be reserve to a great extent. The simulation test results illustrate the validity of the proposed method. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：27 / 33
页数：7
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