正弦信号激励下RL电路暂态过程的Multisim仿真实验分析

摘要

Sinusoidal excitation signal RL first order circuits , sinusoidal excitation circuit and the initial phase angle signal impedance angle satisfy certain relations , in transient circuit changing moment will appear over-current phenomenon. Since the hardware laboratory instruments sinusoidal signal generator can not arbitrarily set the initial phase angle , can not this over-current experimental verification. Objective To explore based on the first order RL over-current circuit simulation technology with Multisim14 software over-current RL first order circuits simulation experiments , and experiments are given principles and methods, concluded that the simulation can describe the visual image transient and over-current phenomenon is conducive to systematic study of the selection circuit element parameters.%正弦信号激励下的RL一阶电路,正弦激励信号的初相位角和电路的阻抗角满足一定关系时其换路瞬间的暂态过程会出现过电流现象.由于硬件实验仪器的正弦信号发生器不能随意设置初相位角,无法对这种过电流现象进行实验验证.基于探索RL一阶电路过电流现象仿真实验技术的目的,用Multisim14软件对RL一阶电路的过电流现象进行了仿真实验验证,并给出实验原理和方法,结论是仿真实验可直观形象地描述暂态过程及过电流现象,有利于系统地研究电路元件参数的选择.