您的位置：首页 > 论文页面
同步电机机端三相短路的仿真
发表时间：2009-04-30 浏览量：3133 下载量：991
| 全部作者： | 刘学智，刘涤尘 |
| 作者单位： | 武汉大学电气工程学院 |
| 摘 要： | 根据同步电机的数学模型方程，对同步电机在三相突然短路时的瞬态过程进行了计算仿真；然后根据各电感等参数得出运算电抗和各个实用参数，代入三相短路电流的解析表达式进行计算，求出了最大瞬态短路电流与转子位置角的关系，得出短路发生在电压瞬时值过零瞬间，此时瞬态电流最大；又在Simulink中搭建了相同参数的同步电机突然短路的仿真模型；并比较分析了在不同方法下的仿真结果，从而对这一现象有了更清楚的认识。 |
| 关 键 词： | 电气工程；三相短路；数学模型；同步电机 |
| Title： | Simulation of three-phase short-circuit at the�terminals of synchronous machine |
| Author： | LIU Xuezhi, LIU Dichen |
| Organization： | School of Electrical Engineering, Wuhan University |
| Abstract： | Based on the mathematical model of synchronous machine, three-phase sudden short-circuit at the terminals of a synchronous machine under open circuit condition was simulated. The standard parameters were calculated by the known inductance parameters and substituted into the analytical expression for computing short-circuit current. Besides, the relationship between the maximal armature momentary current and the rotor angle was obtained. It was concluded that the armature momentary current was maximal when short-circuit occurred at the time when the terminal voltage wave was going through zero. Furthermore, a simulation model with the same parameters in Simulink environment was constructed, and these simulation results were compared and analyzed for getting a better understanding of this phenomenon. |
| Key words： | electrical engineering; three-phase short-circuit; mathematical model; synchronous machine |
| 发表期数： | 2009年4月第8期 |
| 引用格式： | 刘学智，刘涤尘. 同步电机机端三相短路的仿真[J]. 中国科技论文在线精品论文，2009，2（8）：847-851. |
0
评论数 0请您登录
暂无评论
下载全文
多维论文