l*g
5 楼
do you do research or it's an actual application? depending on starting
torque requirements, you might need a starter box which switches Rs whic
h changes the Te vs Speed curve.
【在 s*********h 的大作中提到】
: 现在我用volt/hertz 方法控制AC Induction Motor。
: 但是, 在启动的时候, 电流很大; 我调节了fmin和Vmin, 这样可以使电流小些, 但
: 是, 有的时候电机无法启动, 我想是无法克服pull-up torque. 我想知道, 应该如
: 何确定vhz profile 中的fmin, fmax, Vmin 和 Vmax?
: (我用的Vhz + space vector PWM)
torque requirements, you might need a starter box which switches Rs whic
h changes the Te vs Speed curve.
【在 s*********h 的大作中提到】
: 现在我用volt/hertz 方法控制AC Induction Motor。
: 但是, 在启动的时候, 电流很大; 我调节了fmin和Vmin, 这样可以使电流小些, 但
: 是, 有的时候电机无法启动, 我想是无法克服pull-up torque. 我想知道, 应该如
: 何确定vhz profile 中的fmin, fmax, Vmin 和 Vmax?
: (我用的Vhz + space vector PWM)
s*h
6 楼
It is an actual application but I am quite to new to the motor control...
I do not have such a starter box. All I can do is to use the volt/hertz
control profile to select correct Vmin, Vmax and fmin fmax. Is there any way
or any rules of thumb to set these parameters so that the motor can start
with or without load?
Thanks a lot!
【在 l***g 的大作中提到】
: do you do research or it's an actual application? depending on starting
: torque requirements, you might need a starter box which switches Rs whic
: h changes the Te vs Speed curve.
I do not have such a starter box. All I can do is to use the volt/hertz
control profile to select correct Vmin, Vmax and fmin fmax. Is there any way
or any rules of thumb to set these parameters so that the motor can start
with or without load?
Thanks a lot!
【在 l***g 的大作中提到】
: do you do research or it's an actual application? depending on starting
: torque requirements, you might need a starter box which switches Rs whic
: h changes the Te vs Speed curve.
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