摘要
该文针对同步发电机突然三相短路、两相短路时短路电流、励磁电流、定子直轴、交轴电流的仿真,阐述了不同短路形式下各种电流的变化规律及原因,验证了MATLAB/Simulink用来分析同步发电机短路暂态过程的有效性。根据不同短路形式下电流的对比得到了发电机短路时暂态过程最坏的情况。最后,提出了能够保证同步发电机可靠、稳定运行的措施。
In this paper,the simulation of short circuit current,excitation current,stator direct axis and quadrature axis current of synchronous generator under sudden three-phase short-circuit and two-phase short-circuit is analyzed.The variation rules and reasons of various currents under different short-circuit forms are described,and the effectiveness of MATLAB/Simulink in analyzing the short-circuit transient process of synchronous generator is verified.According to the comparison of the current under different short-circuit forms,the worst case of transient process is obtained.Finally,the measures to ensure the reliable and stable operation of synchronous generator are put forward.
作者
刘亚琳
陈菲
张莹文
Liu Ya-lin;Chen Fei;Zhang Ying-wen(Luoyang Normal University,College of Physical and Electronic Information,Henan Luoyang 471934)
出处
《电子质量》
2020年第11期38-43,共6页
Electronics Quality
基金
河南省高等学校重点科研项目"基于智能融合算法的多机器人追捕协作控制研究及应用"(No.20A470009)
2019年洛阳师范学院校级培育基金"基于演算子理论的不确定机械臂非线性系统研究"(N0.190131211004)
洛阳师范学院2019年校级高等教育教改项目(No.2019xjgj021)。
关键词
同步发电机
短路电流
三相短路
两相短路
Synchronous generator
Short-circuit current
Three phase short circuit
Two phase short circuit
