Simple Examples of PID Control
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- เผยแพร่เมื่อ 12 มิ.ย. 2024
- Check out my newer videos on PID control! bit.ly/2KGbPuy
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In this video I continue the topic of PID control. We walk through a simple control system and visualize how each of the three paths, P, I, and D, all address specific problems that arise in a typical system. I try to use very little math in this lecture because I want to show you that at the foundation PID control is very intuitive. Most of it you can reason through.
Errata:
11:50 I should have increased theta for just a moment and then had it come back down to the same position at the end of the graph. This is because the pedal position would settle at the same value if the speeds before the chase started and after catching-up are same.
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When I studied control theory at university many years ago we started almost immediately into the math of Nyquist stability theory. The point seemed to be that our lecturer was a clever dude and we undergrads were a bunch of idiots who should read more. Maybe he was right, but his job was to change the error signal between our level of knowledge and his own: a nice problem in control theory that he thoroughly failed to resolve.
I got more from your 14 minute video than I did from hours of his instruction. Nicely done. Thank you.
Maybe his system was operating in open loop control, without a sensor to detect the error, or his controller wasnt tuned correctly to reach the reference value
I am in my third (!) semester of Signals + Systems / control system undergrad courses. I’ve gotten A+’s in the first two semesters, and I can 100% say I have never received this sort of explanation of a PID system. We have learned all of the math behind it, but I have never had it explained what P, I, D actually does. I didn’t know the integrator was integrating the error signal (seriously... I didn’t), it was just never explained. It was just referenced as 1/s, and we had some rules stating when you could ignore 1/s because it wasn’t needed - but never a physical explanation of what it was doing. I wish I found this channel 2 years ago.
@@kcmichaelm you can literally see at the definition that the integrator integrates the error signal lmao.
u = K(e + 1/Tn intgrl(e) + Tv de/dt) = PID in time domain
@@abcxyz4207 Was not taught any of that, but thanks for the reply
Being a good engineer or academic doesn't necessarily translate to being good at educating.
Took a whole class in mechatronics as a computer engineer. You managed to explain a whole semester's worth of confusion in a half hour between these two videos!
i want to be a mechatronics engineer
Go to CSU, Chico! We have a great Mechatronics program.
How can this possibly be a semester's worth of study material?
hahaha I agree on that lool I searched for the information about PID and read lots of them, but still I felt like something's missing and this video is just.., after watching the video, I felt like I should pay hh
@@daesoolee1083 its a lot more complex than what is being explained, actually you need a strong knowledge in differential calculus to better understand it, there is something called Laplace transform hence the s symbols. Anyway good lecture.
this guy is good at drawing!
I must say I normally don't comment on videos, but you have an amazing ability to take a complex idea and make it simpler and interesting with great real world type examples. This is how schools should be teaching a combined math science curriculum that actually keeps student interested. I'm an engineer and thus have made it through a rigorous math science education and I wish I had this back when I took control systems. Bravo Sir and keep it coming.
Yes! I'm taking a few weeks off for vacation but when I come back I'll be adding more controller design videos (PID included). I'm going to post a video series on how to design a control system for a real system from system identification to tuning and testing. Stay tuned!
Hey Hi. I am not an engineer, I am building a quad and this video helped me a lot.
Just wanted to say thank you.
same here!
well, if you keep up with this kind of self instruction, after a while, you will find that you are an engineer.
@@maneki9neko seriously, these are hardcore stuff
I wish lectures at my uni were presented like this. I think I've learnt more from Brian's videos in a couple of nights than I learnt in my entire introductory control subject last semester.
on a serious note ! you are seriously talented man ! keep it up... im so glad that i found your videos... bravo sir.. you should be proud of your work
wow..i was smiling through out the lecture...because i understood it.you teach so good.i wish i could become like you one day
These videos are nothing short of completely amazing...from your background and tie to the math, back out to the physical objectives by example. HELPS SOO MUCH! WISH you were my professor would have done so much better in this class. Thank you.
Great job sir. Very well explained. Anyone who thinks he's going to fast there's nothing stopping you from watching it again.
you're totally awesome, I couldn't understand what my university lecturer is teaching and you basically summarized everything he taught in a short, concise and comprehensive video
Where were you when I needed you? I`ve graduated in 2011 and this was my last exam.
One semester worth of classes in just a couple of phenomenal videos! Thank you Brian. I have my exams coming up soon and these videos are a lifesaver.
I looked through all kinds of material and videos trying to get my head around these concepts with little success. Most people start out with a bunch of formulas and technical jargon which makes it very hard for somebody who is new to the field. It had me thinking the most clever people are horrible at explaining things in understandable terms. Thanks to you, I now know that isn't always true. Thanks for taking the time to make this incredible and easy to follow video. If you have a patreon or similar I would be happy to make a donation for your trouble.
I can't say I'm getting the whole thing, but in all fairness I'm not in university. This has greatly helped me understand what a PID is and what they do. Nice lecture, thank you!
This might be the most beautiful analogy I've ever seen in my life
Thank you for the very visual and easily understandable explanation about the PID concept! I'll share it to my friends as the greatest explanaition I've seen so far.
My professor explained this and I was quite confused. I'm really glad I stumbled across your video. Thank you so much Brian.
This is so good! university classes always focus too much on the underlying mathematics without properly reasoning why it exists
i had to stop watching just so i can compliment u on how simple is and easy to understand this video is.
Thank you for your effort.
You made the concept really easy for me to comprehend. I don't even need to go to classes, this class is way better. Appreciate it man!
This is so beautiful!!! Excellent example.
This is probably the first time I'm commenting on a TH-cam video: great job, it's so easy to understand. I hope you continue making more informational videos such as this!
This was the best explanation of PID I've ever seen - it actually had relatable examples.
your work is wonderful. You presented the whole idea so easily and clearly . Frankly I have never seen any other teacher to make this topic so easy. Thank you sir.
This was an amazing video,it proves to be really helpful for anyone trying to understand the basics of a PID controller ,thank you
This helped me out a lot, thanks! It's hard to find thorough explanations but you did a great job.
AWESOME! You made me understand in 13 min what I couldn't in a 4 month course! I give you my best teacher award
love how you linked the videos in the box for the next video in the series
Thank you for your work. It is so good. A good teacher can explain things simply. The work you put in your videos shows. Thanks
well...6 years passed, I play a submarine PC game and find this vedio. Thanks a lot to make this theory so clear explained I have ever watch. I expect to understand the math behind, but your given example is just too good and help me get rid of it. Thanks again, respect!
Wow such a gifted teacher 12mins of your videos saved me 5hrs of studying painful lectuer notes. Thank you:)
I have watched a few of your videos, and you do a great job explaining your examples. Thanks for your help.
I watched this for a robotics programming thingie and I ended up learning something insanely interesting, thanks!!
This is the best explanation of PID control. Good job Brian !
Nice! everything very well explained, very detailed and not boring at all to follow through!
Good job man!
Nice work! I'm an industrial automation electrician, this is the best explanation I've ever seen. Thank you
Back to this again since last time when I was in 2nd grade in university. Such high quality
I wish I had proper youtube back in my child days (29 now). What would school have been so much more easier, resulting in learning even more in a shorter amount of time. No 'dry' text and pictures and brain wrecks. I'm a bit jealous and happy for my daughter the opportunities she have to educate herself. Thanks to people like you Brian!
I didn't have much hope to understand the PID systems until I saw your 2 videos ....I've actually understood them quite well...Thanks
Your lectures are fantastic. Thank you so much for making these!
this series of lectures deserves more views!
These videos are some of the best on the internet. Thank you sir
Every second of this video helps! Thank you so much!
better than a month and a half of engineering lectures. saved my ass on exam 1
Hello, yes you multiply by 's' in the differential path. Did I say or write '1/s' somewhere by mistake? I did I quick search through the video and couldn't find it. Could you point me to the time where you think the mistake was? Thanks!
Very nice quick explanation on the concept of PID control. I appreciate your video
A whole semester of Control Theorie explained in a 13 min video. Great job!
Are you saying that you learned virtually nothing from a semester of control theory? Did you actually pass the subject?
This is incredibly awesome. Fortunately I am done since long ago with exams but it was amazingly fun to watch. Please keep it up! Cheers!
Thank you so much. Best conceptual introduction to PID on the web
beast lecture. Helped me understand a very abstract concept. Great work!
This was extremely helpful. All these transfer functions and PID controllers in class and they never explain what this all really does and means. You did that just right
The two videos on PID are awesome and they helped me a lot as a student.
wow !!! one of the most helpful and graphical educational video, i have ever seen !!! thank you so so much.
You are the man, thanks by the way even 9 years ago your explanation is still the best
I love this videos because it all real time life explanations....
Thank you professor...I loved it
I'm trying to learn this for a while now, but thanks to you I finally get the sence what I'm actualy doing with the calculations. The car example helped a lot to get things to make sense and I now finally understand what can go wrong with wrong gains. Thanks a lot.
Thank You!!! Never got a better explanation of the system!
great work man...!! the way you are making understand with examples is superb. its like explaining very complex industrial problems but the way teachers do in kindergarten. really helpful. thank you.
Im trying to learn as much about PID as possible. What a great start
This is such a nice example! it easily covers the exception which could arise with a solid understanding behind them.
i am really Thankful to you for this Lecture.
This is some good stuff. I was always curious. Never had feedback control courses before. This made a whole lot of sense.
Yay, something useful on TH-cam. Thanks Brian!
Well explained, easy to understand great teacher.
Thank you.
You are the best Brian. Thank you very much for your work.
In my opinion, teaching is much more than understanding theory, explaining it, a good teacher can use imagination and analogies to inspire intuition in to their listeners. You, sir, have a knack for being a teacher. Have a nice day.
2:07 Stuff like this needs to get phrased, we can all relate to but we never actually think about it this way, mind blown, amazing video.
Wow, awesome!! you made my day with this. Cheers from Argentina.
Your videos are awesome! Thanks and keep em coming!! :)
Legend Explanation!! Give this guy a doctorate.
Brian! If you were a stock, I would buy... You just can't beat this thorough explanation!
Really good videos ,your channel is one of my favorites.
Keep it up.
Thank you for your video! Helped me to understand the PID.
Hey Brian, you are just amazing !! Please keep your videos flowing....Thanks
Dear Brian, Thank you for sharing your knowledge as it was informative
Great videos! These are a great supplement to my controls class. Post more PID Videos!
Great videos!! And good understandable spoken english for non-english speakers, thank you!!
It was very sufficient and easy to understand. You're great.
This guy is amazing I appreciate all the videos
Great work, thanks.
Really amazed by the way u presented . Awesome work sir !!!
First let me say that your tutorials are clear and with good sound quality. And you're the first technical person presenting technical stuff with joy, my wife tells me ("all the others sound either dull or depressed"). If my wife tells me so, you should take that as a big compliment ;-).
At 4:21 you state that with proportional controllers the steady state error will be zero. How can that be, since you need an error to have your controller producing an ouput (output=gain*error)
Thanks! Awesome tutorial! looking forwards to more pid examples.
Thanks a ton! Your videos are helping me keep hope that I can understand Controls
Your videos helped me program a 3D video game of respectable complexity :D!
Hello Mr Brian, thank you for making this video.
Brian, my dude, you are saving this poor engineering student's skin. thank you!
Excellent explanation this helped me understand the content in my controls course . Thanks alot Brian.
Hello Brian,
Your lectures are more clearer than the university tuition's i had taken... Cheers to you
Thanks for making this video it was a big help.
Definitely answered a lot of questions for me! Thank you!
Awesome video! Thank you for creating it!!
Thank you for the videos. They are very helpful
Nicely explained, Thank you!
the amizing fact that you're good to choose the most efficient exemple
excellent lecture on control system
this guy is a god, thanks so much for these great videos!
Awesome explanation , thank you man
Thanks Brian.. excellent explanation