电气技术  2021, Vol. 22 Issue (8): 78-84    DOI:
技术与应用 |
基于高可靠性冗余环网通信的中压母线差动保护研究
侯炜, 董凯达, 宋志伟, 陈俊
南京南瑞继保电气有限公司,南京 211102
Research on medium-voltage busbar differential protection technology based on high-availability seamless redundancy communication
HOU Wei, DONG Kaida, SONG Zhiwei, CHEN Jun
NR Electric Co., Ltd, Nanjing 211102
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摘要 本文介绍了一种基于高可靠性冗余环网通信的中压母线差动(简称“母差”)保护技术,采用单间隔综合保护装置完成各自信息采集,将母差保护所需的信息通过环网发送至母差保护装置,母差保护动作后跳闸指令也通过环网到达各单间隔综合保护装置,在不增加电流互感器和接线的情况下实现母差保护功能。母差保护装置体积小、质量轻,可在断路器柜直接安装,测试表明,可以实现一个环网内30个间隔的母差保护功能。
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关键词 高可靠性冗余环网中压母线差动保护差动电流同步    
Abstract:This paper introduces a medium-voltage busbar differential protection technology based on high availability seamless redundancy (HSR) network communication, which adopts single bay combination protection device to complete their own information collection and sends the information required by bus differential protection to busbar differential protection device through the HSR network. After busbar differential protection acting, tripping instructions are also sent to each single bay combination protection device through the HSR network without adding CT or wiring. The busbar differential protection device is small in size and light in weight, which can be directly installed in the switchgear. The test shows that it can realize the busbar differential protection function of 30 bays in a ring network.
Key wordshigh-availability seamless redundancy (HSR) ring network    medium-voltage    busbar differential protection    differential current synchronization   
收稿日期: 2021-01-06     
作者简介: 侯 炜(1979—),男,山西省阳泉市人,硕士,高级工程师,主要从事电力系统继电保护及控制技术研究工作。
引用本文:   
侯炜, 董凯达, 宋志伟, 陈俊. 基于高可靠性冗余环网通信的中压母线差动保护研究[J]. 电气技术, 2021, 22(8): 78-84. HOU Wei, DONG Kaida, SONG Zhiwei, CHEN Jun. Research on medium-voltage busbar differential protection technology based on high-availability seamless redundancy communication. Electrical Engineering, 2021, 22(8): 78-84.
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https://dqjs.cesmedia.cn/CN/Y2021/V22/I8/78