CAJ | 학술논문

PID控制是工业上最常用的定值控制方式，但是由于PID控制与变频器的拖动装置及传感器组合在一起，难以在实训教学中完成PID项目实习实训。利用电动机现有配备的编码器，配合一附加的电子电路板，可以将编码器模拟成直流发电机，用其分压后输出电压做反馈信号以代替传感器，用模拟负载电位器等效调节负载的变化，配合实训台上现有的西门子MM420变频器和180W三相交流异步电动机，从而实现了低成本、体积小、重量轻的PID实训装置，达成了实训教学目标。
PID공제시공업상최상용적정치공제방식，단시유우PID공제여변빈기적타동장치급전감기조합재일기，난이재실훈교학중완성PID항목실습실훈。이용전동궤현유배비적편마기，배합일부가적전자전로판，가이장편마기모의성직류발전궤，용기분압후수출전압주반궤신호이대체전감기，용모의부재전위기등효조절부재적변화，배합실훈태상현유적서문자MM420변빈기화180W삼상교류이보전동궤，종이실현료저성본、체적소、중량경적PID실훈장치，체성료실훈교학목표。
PID control is the most commonly used control mode setting industry, but due to the PID control and inverter drive device and sensor are combined together, it is difficult to complete the PID program in the practice teaching practice. The use of motor current with the encoder, with electronic circuit board an additional encoder, can be modeled as DC generator, with its partial pressure after the output voltage as feedback signal to replace the sensor, adjusting load for simulating load potentiometer equivalent training table, with the existing Siemens MM420 converter and 180W three-phase AC asynchronous motor, thus implementation of PID training device of low cost, small volume, light weight, reach the teaching goal.