| 引用本文: | 易永辉,沈燕华,张玉宝,吕灵芝,韩宇.新一代大型智能水电厂发变组保护装置设计及应用[J].电力系统保护与控制,2018,46(7):138-143.[点击复制] |
| YI Yonghui,SHEN Yanhua,ZHANG Yubao,Lü Lingzhi,HAN Yu.Design and application of the generator-transformer unit protection device for large scale smart hydropower plant[J].Power System Protection and Control,2018,46(7):138-143[点击复制] |
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| 摘要: |
| 针对传统发变组保护二次回路接线复杂、对外接口标准未统一、运行维护不方便以及在保护数据处理、通信数据处理、适应智能运维等方面的不足，提出了模拟量采用常规采样、开关量采用GOOSE传输的保护装置设计方案。研究了发电机差动保护综合优化技术、异常数据容错技术、基于异步采样适应不同工况的发电机保护算法及保护装置运维智能化处理等关键技术，并提出了大型智能水电厂发变组保护的整体工程配置方案。理论仿真和试验测试均表明，该方案能够满足智能水电厂对继电保护的技术要求。 |
| 关键词: 智能水电厂 发变组保护 数据容错处理 智能运维 |
| DOI：10.7667/PSPC170489 |
| 投稿时间：2017-04-06修订日期：2017-04-27 |
| 基金项目:国家电网公司科技项目资助(2016)“智能发电厂(站)监控系统与继电保护关键技术研究及设备研制” |
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| Design and application of the generator-transformer unit protection device for large scale smart hydropower plant |
| YI Yonghui,SHEN Yanhua,ZHANG Yubao,LÜ Lingzhi,HAN Yu |
| (XJ Group Corporation, Xuchang 461000, China) |
| Abstract: |
| In view of the problems such as the complex secondary circuit wiring of the traditional generator-transformer group protection, non-unified external interface standard, inconvenient operation and maintenance, and the higher requirements on the protection data processing, communication data processing and adaptive operation and maintenance mode, this paper presents a design scheme of protection device based on analog quantity using the conventional sampling and switch quantity using the GOOSE transmission. It summarizes and studies the key technologies of the device system, such as comprehensive optimization technology of generator differential protection, abnormal data fault-tolerant technique, generator protection algorithm based on asynchronous sampling for different working conditions, and intelligent operation of protection device operation and maintenance, and puts forward the whole project configuration scheme of the generator-transformer group protection of the large scale smart hydropower plant. The theoretical simulation and test results show that the scheme can meet the technical requirements of relay protection for intelligent hydropower station. This work is supported by Science and Technology Project of State Grid Corporation of China (2016). |
| Key words: smart hydropower plant generator-transformer group protection data fault-tolerant process intelligent operation and maintenance |
