摘要
以三峡右岸(哈电机组)、龙滩、小湾、构皮滩(东电机组)、金安桥、拉西瓦、彭水电站的7台大型水轮发电机的主保护设计为例,说明多分支大型水轮发电机应根据每相分支数(偶数或奇数分支)和故障特点的不同来实现主保护定量化设计过程的合理简化,即偶数(或奇数)多分支水轮发电机主保护的设计过程可归纳为一个每相2分支(或3分支)的水轮发电机主保护配置方案的设计,其分支的合理分组(相邻或相隔方式)取决于发电机实际可能发生的内部故障特点。相关设计规则的总结大大减少了设计计算的工作量。
With the main protection designs of seven hydro-generators in Three Gorges Right Bank, Longtan, Xiaowan, Goupitan, Jinanqiao, Laxiwa and Pengshui power stations as examples, the design process of hydro-generators with even or odd branches can be reduced to the main protection design of hydro-generators with two or three branches per phase and the branches per phase are reasonably grouped according to the possible fault features of different hydro-generators, such as adjacent or alternating modes. The summary of corresponding design rules directs the quantitative design for main protection configuration scheme, which greatly reduces the computation workload.
出处
《电力系统自动化》
EI
CSCD
北大核心
2007年第4期101-104,共4页
Automation of Electric Power Systems
关键词
大型水轮发电机
内部短路计算
主保护配置方案
定量化设计
large-sized hydro-generator
internal fault calculation
main protection configuration scheme
quantitative design