电机电源瞬间切换动态仿真分析  

Dynamic Simulation Analysis on Instantaneous Switching of the Motor Power Supply

作　　者：孙鹄 SUN Hu(Datang Environment Industry Group Co.,Ltd.)

机构地区：[1]大唐环境产业集团股份有限公司,100089

出　　处：《电机技术》2020年第6期42-45,共4页Electrical Machinery Technology

摘　　要：工业电机供电系统短暂故障引起电机电源瞬间切换的情况十分常见。采用空间向量表示法对电机电压瞬时断电引起的主磁通及相应的激励电感等一系列参数变化进行数学建模。利用Simlin k仿真工具对电机瞬时断电残余电压及瞬间切换转子电流进行计算仿真分析,从而确定合适的重合闸时刻。并根据残余电压与电源电压相位差方法,优化电机的重合闸时刻。It is an often phenomenon that instantaneous switching of the motor power supply occurs caused by the short breakdowns in the industrial power system. A series of parameters such as the main magnetic flux and corresponding excitation inductance caused by the transient power failure of the motor are modeled mathematically by means of the space vector representation method. The Simulink simulation tool is applied to calculate, simulate and analyze the instantaneous power-off residual voltage of the motor as well as the instantaneous switching of the rotor current, so as to determine the appropriate re-closing time. The motor re-closing time is optimized in accordance with the residual voltage and phase-difference of the power supply.

关 键 词：异步电机 瞬间切换 重合闸 残余电压 

分 类 号：TM306[电气工程—电机]