MPL-B1530F-V-X219
1.整流:将电网输入的交流电转换为直流电,用于供给逆变电路。
2.逆变:逆变电路将直流电转换为交流电,输出频率、相位、幅值可调的变频电流,控制电机的输出转速。
3.控制:通过传感器将电机的运行状态反馈给控制电路,进行比较和运算,校正输出信号和控制电机的转速。
总之,变频调速器的控制电路能够根据输入信号来调整电机的转速,从而实现对电机的控制。
我们知道,交流电动机的转速表达式为:n=60f (1-s)/p
式中n异步电动机的转速;f异步电动机的频率;s电动机转差率;p电动机极对数。
由式可知,转速n与频率f成正比,只要改变频率f即可改变电动机的转速,当频率f在0~50Hz的范围内变化时,电动机转速调节范围非常宽。变频器就是通过改变电动机电源频率实现速度调节的,是一种理想的率、的调速手段。
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Toyoda BL Super Servo Motor, 20BM090BBDT7 Rev 4 Absosyn
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Toyota Toyoda FL9A8H6-PCBRSA01 MP-192A PCB NEW!
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Toyoda THU-2758
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