Efim Sturov Posted February 7, 2018 Report Share Posted February 7, 2018 Hi there. I have a question about the tuning of a PID (PI) controller in hydraulic drive trains with high inertia. I have a system with a 100kW hydraulic motor with an installed on its shaft encoder. That is how I am getting feedback from it. Not surprisingly I have a controller for acquisition and control of the hydraulic system (there are a few valves in the circuit). The last time when I was trying to tune the PID in the system (in the controller’s software), but I failed miserably. I did everything according to the standard tuning procedure (https://robotics.stackexchange.com/questions/167/what-are-good-strategies-for-tuning-pid-loops like here for instance) increase the proportional gain to reach steady oscillations and so on. At the end of the day the controller works, but too slow. And since it is a big hydraulic system that spins quite fast, I’ve decided not to go too crazy with the parameters and stopped there. I read that it is quite challenging to tune PID controllers in hydraulic systems. The funniest thing is that I have a mathematical model of the system in Matlab/Simulink. So, in theory, I can easily derive the PID parameters. I did it once, and it did not work out either. So could you please advise any best practice for PID (PI) tuning when it comes to fairly big hydraulic drive trains? Thank you in advance. Quote Link to comment Share on other sites More sharing options...
London Rhodes Posted January 7, 2020 Report Share Posted January 7, 2020 I would first recommend you check your encoder mounting. https://info.dynapar.com/encoder-mounting-wp-hollow-shaft-tech-cta?_ga=2.4251571.1455674964.1578319666-760465518.1555533434&_gac=1.12291782.1576600065.CjwKCAiAluLvBRASEiwAAbX3GXK0gm1W6SrSejWablnVQGasw8VpkTnZJq24SQ_4b9v5W2HBx2do-xoCimcQAvD_BwE Quote Link to comment Share on other sites More sharing options...
Devanand123 Posted March 26, 2021 Report Share Posted March 26, 2021 According to a recent market study published by Growth Market Reports titled, “Global Hydraulic Cylinder Market by Designs, Bore Size, Functions, Industries Applications, and Regions: Size, Share, Trends, and Opportunity Analysis, 2020-2027 FOr more detail: https://growthmarketreports.com/report/hydraulic-cylinder-market-global-industry-analysis Quote Link to comment Share on other sites More sharing options...
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