摘要
为保障智能配电网的供电质量,提出了一种基于对等通信的分散式配电网保护与自愈控制系统方案,采用与成熟应用的单间隔差动保护配合,并辅助基于区域信息的网络拓扑保护,实现配电网故障的毫秒级隔离;采用基于对等通信和相同配置的“无主式”模式,实现百毫秒级自愈转供及与分段备自投配合的双重后备;同时针对小电源接入配电网和过载预判提出了有效的解决措施。测试表明,该系统动作行为准确,满足重要用户对配电网高可靠性供电的要求。目前该系统已在上海10kV配电线路成功应用。
In order to guarantee the quality of power supply of Smart distribution network,this paper develops a distributed protection and self-healing system of distribution network based on peer-to-peer communication.The system adopts the mature single-interval differential protection,auxiliary network topology protection,and realizes the millisecond of distribution network faults isolation. In terms of self-healing,the“no master” mode based on peer-to-peer communication and the same configuration is adopted to realize hundreds millisecond level resupply and dual backup.At the same time,effective measures are put forward to solve the problem of small power supply connected to distribution network and overload prediction.The test results show that the system is accurate and can meet the requirements of important users for high reliability power supply of distribution network.At present,the system has been successfully applied to operation in Shanghai 10kV power distribution lines.
作者
王彦国
涂崎
孙天甲
蒋献伟
金震
陈俊
徐舒
朱中华
WANG Yanguo;TU Qi;SUN Tianjia;JIANG Xianwei;JIN Zhen;CHEN Jun;XU Shu;ZHU Zhonghua(Nanjing NR Electric Co.,Ltd.,Nanjing 211102,China;STATE Grid Shanghai Municipal Electric PowerCompany,Shanghai 200122,China;Shanghai Qingpu Power Supply Bureau Co.,Ltd.,Shanghai 201700,China)
出处
《供用电》
2019年第9期9-17,共9页
Distribution & Utilization
基金
国家重点研发计划(2018YFB0904704)~~
关键词
配电网
分散式
对等通信
自愈
差动保护
distribution network
distributed
peer-to-peer communication
self-healing
differential protection
作者简介
王彦国(1983—),男,硕士,高级工程师,研究方向为配电网保护与控制;涂崎(1975-),男,硕士,高级工程师,研究方向为电力系统继电保护;孙天甲(1985-),男,硕士,高级工程师,研究方向为电力系统继电保护;蒋献伟(1979-),男,硕士,高级工程师,研究方向为电力系统继电保护;金震(1977—),男,硕士,高级工程师,研究方向为继电保护与控制;陈俊(1978-),男,硕士,高级工程师,研究方向为发电厂控制保护;徐舒(1979-),男,硕士,高级工程师,研究方向为继电保护与控制;朱中华(1979-),男,硕士,高级工程师,研究方向为配电保护与控制、配电自动化。
