Servo Control Without Integral Action

square17320509

23rd November 2007 - 11:15 AM

Is it possible to control servo system without integral action? Here is the method to control it with modified proportional action only;

http://hecoaustralia.fortunecity.com/digital3/ftsc3.htm

meBigGuy

23rd November 2007 - 11:42 AM

You can easily control a servo with a type 0 loop. Nothing new about that. Do you understand any control theory? For example, without an integrator there must be an offset error to produce an output.

Here is a simple link to get you started.

http://www.ctc-control.com/customer/elearn...otut/svotyp.asp

Also, it is easy to use non-linear methods (especially with micro-processors) to optimize performance and avoid linear controller pitfalls.

Hope that helps.

square17320509

25th November 2007 - 10:22 AM

QUOTE (meBigGuy+Nov 23 2007, 11:42 AM)

I think the problem is how to kill the offset error.

meBigGuy

25th November 2007 - 10:42 AM

If you killed the offset error, and if it is a linear system, then there is the equivalent of an integrator, or there is infinite gain.

I'm not going to sift through your page to find your error.

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