| 引用本文: | 邹贵彬,王晓刚,高厚磊,贠保记.新型数字化变电站分布式母线保护[J].电力自动化设备,2010,(11): |
| ZOU Guibin,WANG Xiaogang,GAO Houlei,YUN Baoji.Distributed busbar protection of digital substation[J].Electric Power Automation Equipment,2010,(11): |
|
| 摘要: |
| 针对基于IEC61850通信标准的数字化变电站，提出一种分散计算并就地控制的新型母线保护方案。根据数字化变电站技术特征，构建了无主站分布式母线保护整体结构；分析了采样值报文和GOOSE信息的数据传输特征，基于以太网技术设计了联系过程层设备和间隔层保护装置的过程总线；利用非传统电流互感器无饱和的优点，将瞬时值电流差动保护原理应用到分布式母线保护计算中。分析表明所提方案结构简单、可靠性高、切实可行。 |
| 关键词: IEC61850 数字化变电站 分布式母线保护 瞬时值电流差动保护 过程总线 |
| DOI： |
| 分类号: |
| 基金项目: |
|
| Distributed busbar protection of digital substation |
|
ZOU Guibin1, WANG Xiaogang2, GAO Houlei1, YUN Baoji3
|
|
1.School of Electrical Engineering，Shandong University，Ji’nan 250061，China;2.Yantai Longyuan Power Technology Co.，Ltd.，Yantai 264006，China;3.Xi’an Xirui Protection and Control Co．，Ltd.，Xi’an 710075，China
|
| Abstract: |
| A busbar protection scheme with distributed calculation and local control is proposed for digital substation based on IEC61850. Its overall configuration without master station is constructed according to the technical characteristics of digital substation. The data transmission characteristics of samples and GOOSE are analyzed and the process bus which connects the devices of process layer and the protection equipment of bay layer is designed based on Ethernet technology. The principle of instantaneous current differential protection is applied in the calculation of distributed busbar protection，which takes the advantage of unsaturated current transducer. Analysis shows that the proposed scheme has simple structure，high reliability and feasibility. |
| Key words: IEC61850 digital substation distributed busbar protection instantaneous current differential protection process bus |
