论文部分内容阅读
一、磁放大器原理简介 FC_2内反馈式磁放大器广泛应用于矿井提升机的控制系统中。磁放大器就是通过改变控制绕组的直流电流,来改变铁芯的磁饱和程度,从而改变受控绕组的电感,使通过受控绕组的交流或直流脉冲电流受到控制。FC_2反馈式磁放大器的两个受控绕组分别绕在两个环形铁芯上,这两个环形铁芯叠在一起后又在其上绕有6个控制绕组。两个受控绕组分别工作在电源的两个半周,因为是电感滤波,所以流过的电流是导电角大于π的单向脉冲电流,并且都向负载同向供电,它们所产生的磁势与控制磁
First, the principle of magnetic amplifier FC_2 internal feedback amplifier is widely used in mine hoist control system. The magnetic amplifier changes the magnetic saturation of the iron core by changing the direct current of the control winding to change the inductance of the controlled winding so as to control the AC or DC pulse current passing through the controlled winding. The two controlled windings of the FC_2 feedback magnetic amplifier are respectively wound on two toroidal cores, which are stacked together and then wound with six control windings thereon. The two controlled windings work in the power of two and a half weeks, because it is the inductor filter, so the current flowing through the conduction angle is greater than π one-way pulse current, and both supply the same load, the magnetic potential and their generated Control the magnetic