I could tell within the first minute that this guy is a natural teacher.
@marcoaureliovillarrealdelv27654 жыл бұрын
SIR, YOU ARE A GENIUS! A very practical way on physically implementing control loops. I have to say that I used to struggle a lot with such concepts in college. This video is gold.
@daltonjameson15063 жыл бұрын
You prolly dont care but does someone know of a method to get back into an instagram account? I was dumb lost my account password. I would appreciate any help you can give me
@darthenx25857 жыл бұрын
Your a genius man. Great explanation. You truly know exactly what your talking about. I would love to work on automation projects with you.
@mstjerning89194 жыл бұрын
Great video! Very concise and no nonsense :-) It might be worth mentioning that when deriving a model from a step-response (I call this a data-driven model), the step used for the response should be in the linear region of the plant/process. Take for instance a motor that can run between 0-1000rpm. To derive a linear model for this motor, the step should not be close to the lower (0 rpm) and upper (1000rpm) operating regions of the motor, due to non-linearities from e.g. inertial mass (shaft, gearbox, load). I would recommend performing an initial step of say 200rpm, followed by a step from 200 to 800rpm. This last step is used for the linear model. The low and upper regions for a motor tend to be non-linear and would not produce an accurate linear model. For validation I tend to check my stability margins by evaluating the gain and phase margins of the system (yes, I use a classic frequency analysis design approach). Typically I calculate these margins and measure them using an analyzer. In most cases all checks out, but you could risk running into instability due to resonances that are not apparent in the 1st order model. Cheers from Denmark :-)
@erickmartinez68056 жыл бұрын
Kevin, You are brilliant. You teach control as it is in real world. thanks.
@DavidRead524 жыл бұрын
Your first point is so RIGHT the number if times I have gone to breakdowns "Due to the controller" that is something physical not functioning correctly in the big bad world. The worst was the wrong sensor been installed from construction and after a lot of engineers looking at the controler over 3 years, then I go to site, doing your first thing and look at all the sensors and find they all were getting reading from a pressure tranducer that was the wrong type. Remember there is no such thing as a desk engineer. Very Good Video
@user-yy6zv3ou3f16 күн бұрын
How did you recognize it was the wrong type or what was wrong about it.
@Gary-ts6dh2 жыл бұрын
9:15 - Wow! I've been to engineering school and I never made that connection! Approximating τ as Δ/4 will be extremely useful to me into the foreseeable future! Thanks.
@emmyherregodts90828 жыл бұрын
Although some people are very good at it: trial and error tuning should be avoided as much as possible. This is a very nice example to extract information out of process data for tuning loops with simple dynamics ..... However if you follow this instructions to the letter your proportional gain (Kc) will be most of the times not correct and you will not get the intended closed loop behavior. The proportional gain(Kc) should be based on the scaled process gain. So if you use in the calculations Kp*(Output_sf/PV_sf) then your result will be fine. If you use tool for this you have to give in the scale factors and the software takes care of everything. If you plan to do the calculations manually (which is not bad at all) then never forget to include the scaling.....Wrong (or no) scalings = Wrong tuning
@jjhaak124017 күн бұрын
You understands it very well, it is indeed important and cant be neglected
@Peter73sky6 жыл бұрын
I'm now closer to understanding PiD settings ,before I had always guessed.Thank you.
@GiveForaSmile8 жыл бұрын
Simply an amazing video. It was well summarized and yet extremely informative, specially being just the tip of the iceberg. I am leaning on doing my senior project on PID systems based on what I just learned from you. Thank you
@dougtowers2 жыл бұрын
One of the best explanations I have watched about a close control loop tuning. A master. Thank you for sharing with all of us.
@petersmith35646 жыл бұрын
Thanks for taking the time to share your knowledge. You have a knack for explaining a complicated process and breaking it down in a fashion that even a noob can grasp. Cheers!
@socialcivilian27035 жыл бұрын
Confident and Concise session. This knowledge is greatly appreciated. Good thing you had 5 boards at your disposal.
@sampathjoshi10545 жыл бұрын
Very practical and honest explanation from his dedicated experience! Received an realistic insight into the topic! Salute to you! ....Love from India!
@josephpetersen8811 Жыл бұрын
This is the best PID video I’ve seen yet.
@destroyo54576 ай бұрын
I knew I was watching a genius at work when he converted a delta symbol to a 4 on the fly at 9:15 😉
@ajaydorasid4 жыл бұрын
Wow....That's the best explanation I've ever got about PID loops... Thanks a lot....
@stanpikulski40075 жыл бұрын
Kevin, you are a great teacher and engineer, THANKS!!
@EndrChe3 жыл бұрын
This guy is a world class educator.
@pardeepchhikara21702 жыл бұрын
Thank you for taking out time for this wonderful explanation.
@jaykesapalaran5434 Жыл бұрын
Very good teaching... Please also make a more video tutorial specs of PLC of what is about is in the marking .
@iamhe9995 жыл бұрын
so where and what value did you set the the P, the I, The D?
@nayrbsworld3048 Жыл бұрын
Crystal clear explanation.
@hayfordankamah-cofie66874 жыл бұрын
Good facilitator,very informative.
@memethematics18734 жыл бұрын
Fabulous Sir! Thanks a lot ABB service!🙌 Hope to get more informative videos at here!
@zucontrol10 ай бұрын
Sp validation is good. Also good to validate by load changing to see how fast pv return to sp.
@HemantSingh-gz3kx8 жыл бұрын
Really great video on Tuning Fundamentals,,
@farzadhagh85824 жыл бұрын
wooow , no word can describe my thankness
@francescobroers90188 жыл бұрын
Thanks for the very informative and practical explanation.
@stuartp2006Ай бұрын
Video games: Stormworks uses a Parallel PID generally, From The Depths uses a Classical. I think
@FullCircleTravis8 ай бұрын
I'm going to need more whiteboards.
@masifamu3 жыл бұрын
thanks for this lucid explanation
@awadelrahman8 жыл бұрын
That was really clear, practical and helpful. Thanks a lot.
@kumudayanayanajith64273 жыл бұрын
123445687359324876234 videos, 6476354812364129876491386 research articles summarized in to just under 22 minutes! Great video, Great explanation. Thanks ABB
@grego.1418Ай бұрын
so much so quickly... excelent
@dansrailways15 жыл бұрын
An absolutely brilliant video, very well explained!
@mohammedmousa35068 жыл бұрын
ABB is the Best
@davidrose98488 жыл бұрын
Thank you for the info, it has definitely helped me understand the basic concept of tuning. Awesome video, thanks for sharing to the Automation world. By the way, i do love your VFD products. I have changed about 95% of our drives over to yours.
@mohammadadil77636 жыл бұрын
Excellent and most practical.
@borishruskar51083 жыл бұрын
Very, very nice. Bravo and big thank you.
@andypeterson26824 жыл бұрын
Excellent, very good explanation, my respects teacher ............... BRAVO ... !!!
@goldilauks7 жыл бұрын
Thank you. That was incredibly helpful.
@matheusviniciusribeiro75403 жыл бұрын
This is a very good class
@laurentporre44795 жыл бұрын
Great ! But you didn't mention about the delay (dead time) potential issues, with a long delay, this tuning rule is much less efficient, but ok it works great in many cases.
@davidcerce4 жыл бұрын
Laurent Porre Dead time is included in the process variable response. If it’s too long (compared to actual response) it means the valve is sticking (called stiction) in his first order example. Repairs would have to be made first and then perform new bump tests.
@josemontenegro5679 Жыл бұрын
Excellent video, thanks !
@gillv76599 жыл бұрын
Similar to the way I do it, but on some occasions unable to perform even a manual step so watching the response adjust accordingly plotting values to see how the gain changes with various output settings. What about showing when to use a feed-forward and looking at the plant to determine the best way to control not as individual PIDs plus combing more than one process variable into a single control valve.
@bramblebop19043 жыл бұрын
That's a very good video. The main reason, it starts from zero, lol. I'm tired of books that hit you with nuclear-physics looking stuff on page one! Talk to me like I'm stupid cause I am! 😂
@ingridepoch91432 ай бұрын
Super helpful thank you!
@rudielamprecht68397 жыл бұрын
Great video. I just need to find a process to tune now.
@frogeman6 жыл бұрын
thanks! though it is the tip of the iceberg, it is much helpful to my knowledge at work.
@krishnakurma47115 жыл бұрын
very good explanation, Thanks
@jhonjvare09 Жыл бұрын
I think the sensor should be after the actuator. I know this is only flow, but flow is affected by the valve. It is only a negative feedback system.
@LeonardoSilva-oq4ey5 жыл бұрын
Thank you for share this with us. Excellent explanation. 👏👏👏👏😃
@randyblythe65633 жыл бұрын
Please create video for gain scheduling and also Feed forward
@BrandonsGym10 ай бұрын
This is really a nice video
@AdamTrojnar8 жыл бұрын
that amazing :) so much important things explained in such easy way.
@atiks8 жыл бұрын
Great video. Thanks for sharing.
@michaelmatheson22799 жыл бұрын
Thanks Kevin. Great stuff.
@MarcoRotella8 жыл бұрын
Thanks for sharing this lesson. best regards
@HellTriX6 жыл бұрын
Thanks. I felt like I was back in college learning stuff!
@KianoushMir8 жыл бұрын
Very nice and informative, great work!
@MedellinVol5 жыл бұрын
You're (or you are) a genius. I suppose you'd have to be a control nerd, as I am, to realize this, but excellent presentation.
@outdoorelement60828 жыл бұрын
Great video ! Extremely Informative ! Thanks for sharing.
@phuocanh198113 жыл бұрын
@14:22 We will do change the setpoint in closed loop. But what the initial value of the PID parameters
@Micuamacu16 ай бұрын
Kevin, You remaked that is extremenly important to know the PID type (Standard, Parallel or Classical). However, in video I cannot see where this information is relevant. The fact you said to use standard, where it is used for calculation?
@zanedzikonski42345 жыл бұрын
Great explanation, I’ll have to watch again. Only thing I’m not understanding is changing of set point as it relates to time. For example using temperature as units if changing from 72 to 78 vs 84. The function of time changes but I’m not sure how. Any ideas? Will watch again...I love how many whiteboards you have btw 😆
@LvtLoshi3 жыл бұрын
My man. Thank you!
@rodericksibelius84722 жыл бұрын
Wow it's just like designing a DC 'Resistor-Capacitor' Circuit.
@krrishnaibm6 жыл бұрын
Nicely Explained!
@elpirogoldfish695 жыл бұрын
great video, good info, might need to sobriety check the camera guy tho..
@marioachi2152 Жыл бұрын
I love this Videos! UFB Job!
@chinox45676 жыл бұрын
Good video and well explained!!
@binhdaoduc62206 жыл бұрын
thank you very much, it works
@techzila53794 жыл бұрын
Sir how we can design a PID controller for controlling the position of shaft which is supported by active magnetic bearing ?
@mligua-zen5275 жыл бұрын
Nice sir, we need more real time problen
@jbreiter563 жыл бұрын
I get it now! Thank you.
@kavyajt3814 Жыл бұрын
thanks a lot sir
@phuocanh198113 жыл бұрын
@14:47 could you please explain why the ratio is 1. What if the ratio is different than 1.
@patrickjones74344 жыл бұрын
Brilliant man
@sathishkumar1023 Жыл бұрын
Amazing
@RezaSimRacing4 ай бұрын
amazing
@m.abrarzahid86195 жыл бұрын
8.42------- (i may be wrong but process value is our output of the system) How can you divide (del P.V with del output, for gain) Shouldn't it be ... ( del P.V / del input, which is our step input) Kindly correct me if im wrong.. anyone..
@Micuamacu16 ай бұрын
Hi Kevin. I work for ABB New Zealand and I am interested in the training course single Loop tuning. Kindly, coud you please send me the training code or the link for apply the training?. thanks
@deanswan61094 жыл бұрын
well done...Thankyou
@shuhratxomidov83153 жыл бұрын
How do you do! Please! Could you present video's ABB lst300. How to calibrate it!
@CheoChamarripa14 жыл бұрын
Exeptional explication, could you teach us how to tune a second order closed loopr response?, I love you man!!!!!
@feolender29387 жыл бұрын
why are you talking about integral TIME? the integral part needs a gain? as does the derivative
@davidcerce4 жыл бұрын
Feo Lender Derivatives is not used in first order curve loops.
@denisseramirezvivas63523 жыл бұрын
Excellent video! :)
@ghulamhabib78108 жыл бұрын
can u give lecture on differential pressure to steam flow cascade in distillation column . or suggest me any good book
@emmanuelsheshi15535 жыл бұрын
thanks so much sir...
@bramblebop19043 жыл бұрын
Where did you "go back to get a master's degree"? And what background did you have prior yo that, if you don't mind my asking.
@jauharkhotami40736 жыл бұрын
Really helpful
@PudoRandonneur8 жыл бұрын
Great video. What I absolutely don't understand is at 15min16s: You say Td=0. But doesn't that value switch off the D-part completely and reduce the PID-controller to a PI-Controller?
@andrewtillison96597 жыл бұрын
Did you ever get an answer to this? This is bugging me as well. At this point, it's just a PI controller.
@wereprobablyoutside44356 жыл бұрын
I think you guys are correct. I have heard that most industrial systems do not use the derivative part, I am not sure why they wouldn't
@sorcererdm2006 жыл бұрын
I dont know if you still wonder why they dont use derivative term, but here is 2 reasons why anyway :) ; 1- Derivative of error introduces a very high output initially if your set value is applied as step. For ex., you start the cruise controller in the car, controller sees a set point change from zero to 100km/h in just a few seconds; think how high would be the derivative of that and it will be fed now as an input to the motors with also Kp and Kı terms! 2- Noise. This one seems like a "ehh, they just say noise everytime they cant solve something" ( :)) but with a derivative term, noise can become a huge problem. Think of the magnitude response of the derivative term; it is Kd * w (|Kd*s| = |Kd*j*w| ), where Kd is the gain and w is frequency. As you noticed probably if you apply 5 Hz, derivative term would be 5Kd and if you apply 10Hz 10Kd. What if we apply 100kHz( a noise freq.) for ex.? then the noise would be multiplied with an enourmus constant while your control output is multiplied with something small. this reason alone can beat the advantages of derivative term in most cases. It is possible to get around both of these. You can activate the derivative bit later or change the term it derivates( directly output for example) for initial problem; for second one you may be able to add a lowpass filter before controller etc. but if you can meet the requirements with less component, time and effort why would you implement derivative and also deal with new problems.
@davidcerce4 жыл бұрын
PudoRandonneur That’s correct, derivative is not used for a first order curve response loop.
@juanericksolis6 жыл бұрын
Man..... you are my hero ;---;
@Myvoetisseer7 жыл бұрын
I would also be that smart if I had that many whiteboards.
@MuhammadSaleem-wv6pj4 жыл бұрын
Interesting
@faboxbkn6 жыл бұрын
amazing! thank you.
@SakakiDash9 жыл бұрын
Very informative video, thanks a lot. :D
@perceptronsaber44797 жыл бұрын
Very Good ; Thanks
@djl66924 жыл бұрын
Great video Kevin! It did leave me with a few questions. At 5:00 and again at 7:50 you describe bump testing and write out a change in the process variable based on the change in the output. My question pertains to what is "output". I keep thinking that we should be watching for a change in output based on a change of input... So I'm interpreting you to mean that the change in the output, is the output controller (presumably in milliamps from 4 mA to 20 mA), which serves as input to the control valve or the pump speed that would create a change in flowrate (to pick an arbitrary, hypothetical process variable). Presumably this output (my input) is a number that you can get from the control system historian (DeltaV/Foxboro/Siemens PLC/DCS) or taking a measurement with a multimeter across the two wires to the control element. Is that correct?The process variable is undoubtedly measured and also available from the HMI or historian. My next question pertains to the equations for Standard, Parallel, and Classical PID algorithms. You showed to solve for Kp and Tp and how some of the other parameters (Kc, Ti, Td) could be solved for if one assumes a 1st order model. However you present these 3 equations for standard/parallel/classical with variable S, and never define what S is. Are those expressions supposed to be equal to something? Are you supposed to set these expressions equal to zero to find S?