| 龙滩发电机主保护设计新思想 | |
| 王维俭 ; 孙宇光 ; 桂林 ; 朱义军 ; 李正茂 ; 袁志鹏 ; WANG Wei ; SUN Yu ; GUI Lin ; ZHU Yi ; LI Zheng ; YUAN Zhi | |
| 2010-06-10 ; 2010-06-10 | |
| 关键词 | 发电机 主保护 设计 继电保护 generator main protection design protection TM31 |
| 其他题名 | New Idea of Generator Main Protection Design in Longtan Power Station |
| 中文摘要 | 对龙滩发电机定子绕组分布结构进行了调研,查清了该发电机实际可能发生的相间、匝间短路故障数;应用“多回路分析法”深入、详尽地计算了13 104种短路故障的全部分支电流的大小和相位。在此基础上,确定了龙滩发电机主保护的配置方案。该方案保护死区减小到0.183%(仅24种故障不能保护),99.51%的短路故障均有两套及以上不同原理的主保护灵敏动作(即仅有64种短路故障只有1套主保护动作或拒动);采用2/4出口跳闸方式,有效地降低了保护装置误动作率,使龙滩发电机主保护既具有高灵敏性、又具有高可靠性,这为特大型发电机主保护设计提供了新思想,创造了新经验。; The distribution structure of generator stator winding in Longtan Power Station was investigated, the possible fault numbers of phase - to - phase and turn - to - turn short circuit were checked up. The phase and the size of all branch currents of the 13,104 kinds of fault of short circuit were calculated thoroughly thorough " mufti - bop analysis ". On this foundation, the disposition scheme of main protection of Longtan generator was determined. The protective dead band of the scheme reduces to 0.183% (only 24 kinds of fault can not protected), the 99.51% of short circuit fault of has two sets and above the main protection with different principles (only the 64 kinds of short circuit faults have 1 set of main protection). The mode of 2/4 outlet tripping adopted by the scheme can reduce the mal - operation rate of protection device efficiently, which make the main protection of Longtan generator high sensitivity and high reliability, and offer a new idea of main protection design for large generator. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/62935]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 王维俭,孙宇光,桂林,等. 龙滩发电机主保护设计新思想[J],2010, 2010. |
| APA | 王维俭.,孙宇光.,桂林.,朱义军.,李正茂.,...&YUAN Zhi.(2010).龙滩发电机主保护设计新思想.. |
| MLA | 王维俭,et al."龙滩发电机主保护设计新思想".(2010). |
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