新型电力系统继电保护面临的问题与解决思路  

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

作　　者：郑玉平 吕鹏飞 李斌[4] 吴通华 周博昊 宋国兵[5] 杨国生 ZHENG Yuping;LYU Pengfei;LI Bin;WU Tonghua;ZHOU Bohao;SONG Guobing;YANG Guosheng(NARI Group Corporation(State Grid Electric Power Research Institute),Nanjing 211106,China;State Key Laboratory of Technology and Equipment for Defense Against Power System Operational Risks,Nanjing 211106,China;State Grid Corporation of China,Beijing 100031,China;Key Laboratory of the Ministry of Education on Smart Power Grids(Tianjin University),Tianjin 300072,China;School of Electrical Engineering,Xi'an Jiaotong University,Xi'an 710049,China;China Electric Power Research Institute,Beijing 100192,China)

机构地区：[1]南瑞集团有限公司(国网电力科学研究院有限公司),江苏省南京市211106 [2]电网运行风险防御技术与装备全国重点实验室,江苏省南京市211106 [3]国家电网有限公司,北京市100031 [4]智能电网教育部重点实验室(天津大学),天津市300072 [5]西安交通大学电气工程学院,陕西省西安市710049 [6]中国电力科学研究院有限公司,北京市100192

出　　处：《电力系统自动化》2023年第22期3-15,共13页Automation of Electric Power Systems

基　　金：国家电网有限公司科技项目(新型电力系统继电保护体系架构与关键技术研究,5108-202240278A-2-0-XG)。

摘　　要：构建以新能源为主力电源的新型电力系统是实现“双碳”战略目标的关键技术途径。新型电力系统发展背景下,新能源高比例接入,电力系统的输配电形态演变导致系统高度电力电子化,其迥异的运行特性与故障特征导致传统以同步机电源为根本、以线性叠加原理为理论基础的故障分析方法和继电保护原理动作性能受到严峻挑战。文中系统阐述了新型电力系统典型场景下,传统故障分析与继电保护面临的关键问题,进而从新型电力系统的故障特征与规律认知、传统保护适应边界及性能提升技术、不依赖电源特性的继电保护新原理、电力电子设备主动支撑保护需求的控保协调等方面详细阐述了解决思路。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.

关 键 词：新型电力系统 故障分析 继电保护 控保协同 保护适应性 电力电子设备 新能源 

分 类 号：TM77[电气工程—电力系统及自动化]