Comments on: PID Control Made Easy http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/ This blog is about Simulink. Thu, 23 May 2013 13:37:39 +0000 hourly 1 http://wordpress.org/?v=3.5.1 By: syed http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-30117 syed Tue, 30 Apr 2013 20:58:14 +0000 http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-30117 Anand,

I am trying to use these tools to help with making a PID autotuner using process data or online. It is a heater tank with very viscous flows.

]]> By: Anand Vasappanavara http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-20898 Anand Vasappanavara Tue, 12 Mar 2013 14:30:42 +0000 http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-20898 I have worked on a chemical plant (Shell) control systems for over 5 years, unfortunately could not convince the top management for the introduction of Matlab and Simulink for Process Control (Tuning, System Identification, Process Optimization & Model Predictive control)in the industry. I want to know if any group is working to introduce these tools in the chemical industry, i would like to volunteer my time to help them.

]]> By: george http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1733 george Mon, 27 Feb 2012 22:06:15 +0000 http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1733 Hello, I have a real model (Pendulum with a dc motor+propeller at the bottom and from RTW I controll the angle of the pendulum) and I want to use parametter estimation so I can find the real parameters! Could this work for the real model? I am a student. If you can help me! Thanks, George

]]> By: Bassim Jassim http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1689 Bassim Jassim Fri, 20 Jan 2012 12:44:35 +0000 http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1689 Hi
If the system has many loops i.e more than one controller. Is it possible to use this tool?

many thanks

]]> By: Arkadiy Turevskiy http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1562 Arkadiy Turevskiy Tue, 13 Sep 2011 16:52:20 +0000 http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1562 Hi Hendrick,
The PID Tuner highlighted in the post works on SISO loops. In case of a cascaded controller,like you have, you most likely need to open the outer loop, and tune the inner loop first. Then, with inner loop tuned, you can close the outer loop and tune it.
This is explained in detail in this demo:
http://www.mathworks.com/products/simcontrol/demos.html?file=/products/demos/shipping/slcontrol/scdairframectrldespad.html

Another interesting point is that we actually just released a new capability to tune multi-loop or any multivariable control systems in Simulink, without changing controller structure.Take a look at these couple of demos:
http://www.mathworks.com/products/demos/robust/tuning-decentralized-control-system-for-helicopter.html
http://www.mathworks.com/products/robust/demos.html?file=/products/demos/shipping/robust/cascade_demo.html

HTH.
Arkadiy

]]> By: Hendrick http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1555 Hendrick Sat, 03 Sep 2011 13:08:07 +0000 http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1555 Hi Arkadiy,

I’m having difficulty tuning my controllers at the moment. My system consists of a PID controller feeding into a PI controller, I tuned the inner PI first but the values are always ridiculous…

If I show you my .mdl, would you be able to tell me why it’s not autotuning?

Thanks,

Hendrick

]]> By: Arkadiy Turevskiy http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1450 Arkadiy Turevskiy Wed, 27 Apr 2011 18:49:04 +0000 http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1450 For a comprehensive collection of tutorials and demos on designing PID controller in MATLAB and Simulink, take a look at this page:
PID Control with MATLAB and Simulink

]]> By: misha http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1313 misha Thu, 16 Dec 2010 19:39:35 +0000 http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1313 Hii I just want to know how to tune PID controller from transfer function of the circuit. Unable to know how to change the PID parameters.

]]> By: Mac http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1213 Mac Mon, 06 Sep 2010 10:35:54 +0000 http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1213 I want to use PID controller for quarter car model.

will u help me in tuning the P I and D parameters for the controller?

]]> By: Arkadiy Turevskiy http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1044 Arkadiy Turevskiy Thu, 01 Apr 2010 20:19:45 +0000 http://blogs.mathworks.com/seth/2009/12/24/pid-control-made-easy/#comment-1044 The model described in this post is available on MATLAB Central here:
http://www.mathworks.com/matlabcentral/fileexchange/26275-pid-controller-design-for-a-dc-motor
Enjoy.

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