Problems Faced by Relay Protection in New Power System and Their Solution Ideas

被引：0
|
作者：
Zheng Y. [1 ,2 ]
Lyu P. [3 ]
Li B. [4 ]
Wu T. [1 ,2 ]
Zhou B. [4 ]
Song G. [5 ]
Yang G. [6 ]
机构：
[1] NARI Group Corporation, State Grid Electric Power Research Institute), Nanjing
[2] State Key Laboratory of Technology and Equipment for Defense Against Power System Operational Risks, Nanjing
[3] State Grid Corporation of China, Beijing
[4] Key Laboratory of the Ministry of Education on Smart Power Grids (Tianjin University), Tianjin
[5] School of Electrical Engineering, Xi’an Jiaotong University, Xi’an
[6] China Electric Power Research Institute, Beijing
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2023年 / 47卷 / 22期
关键词：
control and protection coordination; fault analysis; new power system; power electronic equipment; protection adaptability; relay protection; renewable energy resource;
D O I：
10.7500/AEPS20230121001
中图分类号：
学科分类号：
摘要：
The construction of the new power system with renewable energy sources as the main power sources is a key technical route to realize the strategic goal of carbon emission peak and carbon neutrality. In the context of the development of the new power system, with the integration of high proportion of renewable energy sources, the evolution of transmission and distribution forms of the power system leads to highly power-electricized system. The very different operation characteristics and fault features lead to serious challenges in the traditional fault analysis method and the principle action performance of relay protection with the synchronous generator source as the fundamental and the linear superposition principle as the theoretical basis. This paper systematically describes the key problems faced by the traditional fault analysis and relay protection in the typical scenarios of the new power system, and then elaborates the solution ideas from the perspective of the fault characteristic and law cognition of the new power system, the adaptation boundary and performance enhancement technology of the traditional protection, the new principle of relay protection independent of source characteristics, and the control and protection coordination for actively supporting protection demands of power electronic equipment. © 2023 Automation of Electric Power Systems Press. All rights reserved.
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页码：3 / 15
页数：12
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