发电机严重故障工况灭磁仿真分析  

De-excitation Simulation for Generator Catastrophic Failure

作　　者：吴跨宇[1] 竺士章[1] 陈新琪[1] 

机构地区：[1]浙江省电力试验研究院,杭州310014

出　　处：《大电机技术》2009年第5期49-52,共4页Large Electric Machine and Hydraulic Turbine

摘　　要：首先分析了发电机空载误强励和额定空载、额定负载时出口突然三相短路灭磁过程。通过对两种最严重故障工况灭磁过程进行仿真,得出发电机最大可能出现的灭磁能量和灭磁电流,分析了灭磁仿真结果,并对灭磁电阻能容选型提出参考意见。This paper focuses on the analysis and simulation of de-excitation processes at no-load error force-excitation and 3-phase short-circuit on rated no-load and rated load. According to the results of simulation, the paper gives the possible maximum de-excitation energy and maximum de-excitation current during the process, which also gives the reference for selection of de-excitation nonlinear resistors’ energy capacity.

关 键 词：发电机 灭磁 仿真计算 能量 

分 类 号：TM301.2[电气工程—电机]