What is FOC? (Field Oriented Control) And why you should use it! || BLDC Motor
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5 років томуTrinamic Website: www.trinamic.com/
How to set up the TMC4671 FOC Servo Controller video: • How to set up the TMC4...
Previous video: • How NOT to make a Modi...
Sensorless ESC video: • Make your own ESC || B...
Sensored ESC video: • Make your own Sensored...
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In this video I will show you how Field Oriented Control (FOC) works and what advantages it offers in comparison to traditional ESCs. Along the way I will also present the TMC-4671 IC from Trinamics which features hardware that offers the FOC functionality for motors.
Websites which were shown/used in the video (useful):
www.db-thueringen.de/servlets...
www.roboteq.com/index.php/app...
www.maccon.de/fileadmin/redak...
www.trinamic.com/fileadmin/as...
Thanks to Trinamic Motion Control for sponsoring this video
Visit www.trinamic.com/ to get awesome motor control ICs
Music:
2011 Lookalike by Bartlebeats
@greatscottlab 5 років тому
Do you like the small animations in the video or do you prefer my hand drawn style? Let me know!
@AnOrangeECat 5 років тому
I love some animations!
@omhekde9033 5 років тому
Animations are better
@BharatMohanty 5 років тому
Hand drawn style is your USP so I prefer it.
@alinbostan4569 5 років тому
The animations are cooler, isn't it ?
@yxcvbnmmnbvcxy544 5 років тому
Hand drawing
@emadeloc 5 років тому
Do you know who should sponsor your videos? A markers company.
@RomanoPRODUCTION 5 років тому
Yes so true, some pens that allow clean stabilo-boss flashy over lighting
@superdogmeatmeat 3 роки тому
hehe
@AtulVinayakS 5 років тому
You wasted an opportunity to title the video "What the FOC!"
@greatscottlab 5 років тому
I honestly never thought of that. Dammit!
@AbhishekThakur-wl1pl 5 років тому
Take a while to get it 😂😂
@DougFalcon 5 років тому
"This waveform is very jagged and sharp and it could attack at any moment. So we must deal with it."
@nicewhenearnedrudemostlyel489 5 років тому
i would say that's a really stupid title, for any reason other than showing legitimate problems with it.
@AtulVinayakS 5 років тому
@@nicewhenearnedrudemostlyel489 why don't you go FOC yourself? 😂
@backdoornutzer4461 5 років тому
I like the animation style for moving things because it adds more movement to the video. Especially when working with motors.
@chopper3lw Рік тому
Of all the FOC explainers on here , yours is by far the most enlightening. THANKS!
@felixman9691 10 місяців тому
I come back to this video at least once or twice a year. Thanks for making this.
@kickinbackinOC 5 років тому
That video was written right spot-on to my level of understanding. For me, it was perfect! I really liked the explanation of when is the best time to energize a stator coil, for a given angle of the rotor. And further it was explained that since current lags voltage in an inductor, the timing of when to energize the stator coil has to be adjusted as well. Really excellent stuff! 👍
@zeninlasvegas 2 роки тому
The crux was explained neatly
@standbyme6395 5 років тому
I'm not much on idols but you are well on your way. Thank you for dedicating so much time to learning us a few things.
@mattquick5045 5 років тому
6:45 ah yes, the time honored tradition of highlighting everything in a diagram. ;P
@anthonyvolkman2338 Рік тому
Wow!!!! Excellent video here!!! Wow! Such detail and attention was made here. I like the animations due to the fact that everything can be seen in movement or at least propagation. Keep up the amazing and ever improving job!
@gudenau 5 років тому
Your sponsored videos can really stand by themselves, and that's pretty good.
@northshorepx 5 років тому
I never really was able to picture the theory here before! Your videos really help the mathematics (of the theory) come to life. Thanks.
@greatscottlab 5 років тому
Glad you like it :-)
@tomwin6975 5 років тому
Sending your company' stuff to GreatScott is best way of marketing, I guess (but only if your product is seriously good)
@avejst 5 років тому
Wow, nice job trinamic! Thanks for sharing👍😀
@deepakjoshi6242 5 років тому
I like your project videos more.. And waiting for one...☺
@danthemancasey 5 років тому
Awesome video as always! Thank you, keep up the good work!
@richardbloemenkamp8532 5 років тому
ESC technology is really a very interesting topic. I hope you keep on digging deeper and eventually are able to come up with a great design for us all to make ourselves, based on for example this chip plus standard MOSFET's, some microcontroler and a homemade Hall-sensor-based axis-positon controller. Efficiency and accuracy may be a bit lower but controlling reasonably high-current BLDC's would be nice. Would that make sense or should we just buy O-drive or VESC's for about $100 because it is too complex and because the standard components added up are equally expensive.
@l3d-3dmaker58 5 років тому
YAY Trinamic!! they are some cool guys with some cool stuff my man, and their drivers are amazing
@Roberto-dd1te 5 років тому
I've never seen a donkey in a datasheet before
@Flo-er 5 років тому
It's a donkeybridge 🐎🌉
@Ramog1000 5 років тому
soo is it a donkysheet?
@abdulazeez.98 5 років тому
😂😂
@acemasterx2514 2 роки тому
This reminds me microstepping for stepper motors. Good video!
@00lol00sh 5 років тому
Great animation video, but I think you should have mentioned the underlying d-q transformation behind the FOC, which lets the controller interpret sinusoidal signals as constant quantities, thus the reference system can be precisely oriented towards the rotor magnetic flux linkage.
@cashel1111 5 років тому
nope, i need to comment twice :P these animations are gorgeous! so much information displayed
@ialeg3710 5 років тому
I'm happy you didn't just solve the issue with an easily programmable IC with Arduino like you usually do and instead went more in depth.
@markoantesic4362 5 років тому
This was more a presentation on SVM - space vector modulation- then on FOC. Strictly speaking FOC is just what you skipped over at 6:40. Also while dedicated FOC chips seem nice, modern microcontrolers are more then capable running the whole thing in software. E.G. I have used and seen Texas instruments piccolo/delfino chips run multiple motors in FOC with no problem. I have seen 1 delfino uP run a "12 phase" motor (like if you had 4 motors on the same shaft, each runing its own foc) with no problems.
@EmyrDerfel 5 років тому
You wouldn't actually want to sync the phases because inaccuracies in the motor mounts and alignment changes under load would result in a your sync'd phase transitions being inappropriate for one of the motors.
@gangireddynagarjunareddy5299 3 роки тому
can i have your email id?
@RandomHacks 5 років тому
It makes me nervous when you use a screwdriver as a pointer for your oscilloscope 😅
@serwisrtvlaptopelektronik5166 5 років тому
as I see it, I have a small heart attack. :)
@maskedredstonerproz 3 роки тому
what else can he use tho??
@antoniovieira1423 5 років тому
nice animations makes the video more easier to understand keep it up Mr Scott!
@greatscottlab 5 років тому
Thanks for the feedback
@antoniovieira1423 5 років тому
you're welcome!
@TheMechanicGamerVids 5 років тому
Your Channel is Awesome!
@ShaunHusain 5 років тому
Thx for all the great vids.
@DannyBokma 5 років тому
Aweseome IC but "The TMC4671 does not support sensorless FOC" is a bit of a bummer.
@malred1195 5 років тому
Can't wait till you get a million sub
@energystoragedevelopers7656 5 років тому
Omg 😮 I was trying to find a video I watched about latest Bldc driver controllers but can’t seem to find it and thought I must have dreamt it ! But lucky I find your video that proves better driver tech is real . I wish I could find other video though as it explained certain things that I want to research further and I think you may like it . I just bought aeg fusion drill and it has latest Bldc motor controller which nearly doubles it torque from 70 nm to 140nm . I also uses Panasonic 2070 cells instead of 18650 . Very powerful drill .
@MedSou 5 років тому
Nicely explained ,Thank you 👍👍👍👍
@AndreyVarlamov 4 роки тому
Trinamic is an awesome solution.
@jorgevalentemorales 5 років тому
Excellent!! ..more please!! 👍
@pavlosvasileiou2994 5 років тому
Great Video as always, but I’d like to point out one thing only. This flux current (direct current or Id) isn’t just representing Power Losses. It really depends on the application and it comes down to the algorithm which you use to implement FOC such as MTPA (Maximum Torque Per Ampere), Constant torque etc. Also, this direct current will really help you achieve more RPM for the same Power in the exchange of some Torque. This phenomenon is called MFW (Magnetic Field Weakening). Anyways, great channel, keep it up man! You’re a great motivation for a lot of young Engineers!
@greatscottlab 5 років тому
Thanks for the feedback and thanks for the information.
@ericcartmann 5 років тому
Direct Current is for building a field inside of an induction machine. Kinda like the shunt coil in shunt DC motors. BLDC motors/PMSM have a permanent magnet building a field. Thus direct current is all loss, the direct current has no rotor field windings to couple with. You set Direct current to zero in the park/clarke controller BLDC/PMSM.
@th3d3wd3r 5 років тому
Field weakening gets me an extra 10-15mph or so out of my ebike. Which takes it up to 65mph top speed at 100v with a torque wound motor.
@ericcartmann 5 років тому
Thats an induction machine right? So you mean a "Wound Rotor" motor. That means there's no permanent magnet, and the magnetic field is generated with the direct current coupling to the rotor windings. The stronger the magnetic field, the more torque but less speed. The weaker the magnetic field the faster the speed but less torque. FOC lets you control the amount of direct current so that after you have started (accelerating your vehicle takes the most amount of torque, at a constant speed the only torque you need is to counter friction and air resistance) you can lower the direct current to get more speed.
@sorin.n 5 років тому
You guys really know your FOCs and BLDCs...
@zolatanaffa87 5 років тому
hello, excellent presentation of the product: I would say that this is a valid solution: rewriting what you are explaining it increases the strength of penetration of the message: I am Italian, I do not know very well English (German even less) and I struggle to follow you (fortunately there is still and the speed at 0.75) but your diction is clear and not too fast so understandable for me: Great, Scott! another style of presentation that I consider very effective is that of DroneBot Workshop: it is very nice and understandable even if I think it is much more complicated to realize than your writing in real time:
@lazyman1011 3 роки тому
Great as always!
@Lukanyator 5 років тому
Great job! It was very interesting ^^
@sarbajitdas7659 4 роки тому
Superb I learnt a lot of things
@Hasitier 5 років тому
Eselsbrücke Adapter. You made my day.
@JawadAhmadsahibzada 2 роки тому
perfect explanation 👍 Thank you so much
@ShomiTheGreat 5 років тому
Balance out the shaft joint by placing another screw at the opposite side of the one currently placed. It'll increase the overall rotational inertia- but it'll also provide a constant, non-fluctuating load- thus giving better performances. A lot of energy is spent on unwanted effects such as motor's vibration which you even have to fight with your own hand (a.k.a. improvised vibration damping element)
@R3MIXMODZ 5 років тому
0:37 field is pronouced (feeld) like the word feel but with a d at the end
@greatscottlab 5 років тому
Good to know
@userPrehistoricman 5 років тому
I'm disappointed that this thread wasn't a shitstorm like the one about 'ceramic'.
@x9x9x9x9x9 5 років тому
I was about to make the same comment. Since English isn't his native language I was trying to think of a way to be tactful about telling him how to pronounce field.
@superdau 5 років тому
He knows that, because he pronounces it correctly later in the video. But why do you add an "s" to the end of half the words that should and with d/t? "saids", "get rids", "work outs", "grounds", "a fields", "a FETs" (and no, it's not a plural s). That can be quite confusing.
@R3MIXMODZ 5 років тому
English, in general, is hard. But the only way to get better is by practicing and correcting your mistakes.
@aaronwest2402 5 років тому
I'm so deeply interested in these motors for some reason. I'm a diesel engine mechanic with mere basic understanding of electricity and barely that much when it comes to electronics. Your channel has been very helpful sir, I thank you for that. I am on this epic journey of building my own driver for this rather large bldc motor I have. Something that would probably be relatively simple for you. Nevertheless, I'm committed. That ic seems incredulous. The frequency of switching is beyond comprehension. Will definitely be snooping around their website today. Great video 👍
@greatscottlab 5 років тому
Thanks for the feedback. I hope you will be successful in creating your driver.
@aaronwest2402 5 років тому
@@greatscottlab hey man, have you heard of these intelligent power modules?!? Most amazing thing ever. I know this is all about DIY, but most of the time DIY is to save money. Anyways. Theyre pretty amazing devices. 300amp rating inverter to-220 ics. Im going to get a couple from Alibaba.
@cricketgreen6284 2 роки тому
Always great!
@power-max 5 років тому
Can you implement an FOC algorithm on your DIY ESC? That's kinda what I was hoping for in this video.
@RingingResonance 3 роки тому
FOC takes quite a bit of horse power to run. You need a pretty fast micro preferably with floating point math capabilities implemented through hardware such as a math co-processor or a CPU that supports floating point instructions. You could also do it with fixed point fractionals, but it wouldn't be as straight forward as floating point.
@KerbalLauncher 3 роки тому
@@RingingResonance You can run a fixed point sensored implementation on one of those STM32 bluepill boards, but that's stupid. Better to get a genuine STM32 nucleo board or Texas Instruments C28x LaunchPad than to waste time with potentially defective bluepills from China. Something like sensored FOC is actually rather easy to implement in floating point, feed currents through the transforms one way, PI controller, then feed the voltages through the transforms the other way. Sensorless isn't that much harder to implement if you're ok with startup cogging.
@AboubakrA 5 років тому
starting the video without "this video is sponsored by JLCPCB" bit in the beginning ... I can die peacefully now
@freak-zd4wm 2 роки тому
Amazing video!
@muhammedyasarkaya8176 5 років тому
Thanks for super understandable video (y)
@akshaydasm.k9388 4 роки тому
Here in my company, we use this tmc ic. For stepper motors we use tmc5160. It's really great.
@mekanism8364 2 роки тому
What size load is this powering in your company?
@thomasdgiannis8727 5 років тому
Hello from Greece
@caelanmorris362 5 років тому
Gaday from Australia mate!
@jonesnjoroge 5 років тому
Go West Coast!!! :)
@caelanmorris362 5 років тому
Heck yeh
@austinwu7643 5 років тому
The animations are great
@argentinomacrifuevidaltamb3772 5 років тому
Excelente gracias por tu tiempo.!
@nosafetyswitch9378 5 років тому
had to use some CLARK-PARK (and inverse) transforms very recently in the controller of an inverter so when I saw the datasheet I skipped a bit! Amazing times...
@spicymemeboi2646 5 років тому
so the quadcopter project is still going? :)
@greatscottlab 5 років тому
It's a secret!
@aksquad5522 5 років тому
@@greatscottlab Maybe a little hint ?😂
@blackturbine 5 років тому
@@greatscottlab are you making a manned quadcopter that will put you in power similar to government position?
@ShahZahid 5 років тому
@@greatscottlab is it a hexacopter
@ShahZahid 5 років тому
And post a video about it
@splanksplank7973 5 років тому
Ich musste das für die Matura lernen, habs aber bis jetzt nie verstanden. Danke!
@AnubhabKundu 3 роки тому
smoother field movement in space with time is the major plus point of FOC. FOC can simplify the control strategy of a 3 phase AC induction motor or a PMSM to look like that for a DC shunt motor where torque is a function of current drawn and the speed a function of voltage applied to it.
@christianacar2745 Рік тому
I didnt know you have this video T.T thank youuu
@StaticVapour590 5 років тому
nice, animations are cool
@RafaGmod 5 років тому
Wow, i worked with this in my master :D
@Drxxx 5 років тому
nice video dude.. i love sunday because your videos..
@greatscottlab 5 років тому
Awesome! Glad I could brighten up your Sunday.
@chanterheld 5 років тому
I was actually doing research on that exact IC and cursing the fact that the DEV board is so crazy expensive when I got the notification.
@tibi3238 5 років тому
Road to one milion
@felipeperez7802 5 років тому
I like the new attempt at the animations done my software. Nevertheless, I usually prefer the hand drawn style. I suggest that a good mix of the two (animations for more complex drawings, and hand drawn sketches for simpler illustrations, for example) Edit: Keep up the good work! Love your videos.
@sihlejz840 3 роки тому
great work! can you please do a simulation for a three-phase induction motor variable speed drive using FOC?
@charlesadrianneruben6088 5 років тому
Great scott! I always watch your videos every you post it and i love it and useful. :-) I want to ask to make digital voltmeter even ammeter using an arduino? Thanks.
@ThomasHaberkorn 5 років тому
really illustrative animations you did this time, great!! however, on 5:14, shouldn't "Step 7" result in a vector of length 0 (i.e. a point at the origin)? In Step 7, (and step 0), no field in created (I think).
@INeedAttentionEXE 5 років тому
I like the cool animations
@LanceThumping 5 років тому
Hopefully this will lead to the eBike market having the high voltage high amp niche they require filled. It's hard to find a controller with FOC that can do the high power levels that eBikes usually run at.
@ericvauwee4923 2 роки тому
Unitech or Sevcon make pretty big ESCs with FOC
@NoorquackerInd Рік тому
The Trinamics power stage kit that he showed in the video was capable at 70V, 10A. That should get you a nice 700W, which is close to the legal limit in the cities I'm in
@sethperkins1938 Рік тому
The 4671 can also drive other gate drivers that can drive igbt or high power MOSFETs for high power FOC
@estebansanches4236 5 років тому
Hi Scott can you make a video talking about galvo servos it would be awesome
@electronic7979 5 років тому
Excellent
@cristiantalos4042 4 роки тому
Great video! Do you plan on making a video on BLDC motors using the ODrive? That would be really cool :)
@bruperina 5 років тому
Thank you buddy.
@karampalsingh5914 5 років тому
It is very good
@emilianochomnalez637 5 років тому
It would be very nice to implement the board with your DIY Arduino sensored controller. Thanks for the video
@Scrogan 2 роки тому
Very interesting.
@sonalinaldurgkar4384 5 років тому
Very nice
@TheMakersWorkshop 5 років тому
Hello Scott! "Field" has a traditional English pronunciation of "FEE-eh-ld" similar to wieder
@BressanaDavide 5 років тому
Can you explain how implement the FOC technique in closed loop bipolar stepper motors?
@Lovreli 5 років тому
I like the animations...
@surajsingh4477 5 років тому
You the best:)
@alinbostan4569 5 років тому
Hello from Romania !
@eziothegoat 5 років тому
Salut
@XdewGaming 5 років тому
Hello from Thailand!
@Jerklolschannel 5 років тому
can you do a whole video on the O-Drive? Minaly focusing on its precision and Advantages over a Normal Stepper-Motor
@greatscottlab 5 років тому
Sorry but I am not interested in making such a video.
@merugr8718 5 років тому
How many hours does it take you to make such amazing videos? Don't you get tired from time to time? Btw great content!
@tamyboy1 5 років тому
nice ic
@caelanmorris362 5 років тому
I liked the video before Even watching it!
@MCSGproject 5 років тому
good topic
@albertox0404 5 років тому
Nice video like always, do you fix your custom vesc?
@greatscottlab 5 років тому
No. Never got to it.
@sanderveenman599 2 роки тому
What motor donyou use in this vid? Looks liike a good candidate for my next project
@LeadSkillets 5 років тому
Yes, let the current flow through you.
@aravinthkj9768 3 роки тому
Please make a video about making Power stages which can be used with different motor control circuitry.
@oo-bb4qs 2 роки тому
GOOD ANIMATIONS
@svvelanautica2374 4 роки тому
How about the A89301 sensorless FOC controller from Allegro? I like to see a DIY project of BLDC motor controll. With that ic it might be simple enough...
@johnnewsom263 5 років тому
Hay greatscott I'm new to the soldering world and wanted to know about mosfets what are they? How are they used and are they anygood?
@sergeantseven4240 5 років тому
these drivers would be great to use on a combat robot platform for the drive wheels if someone had a more compact driver board that accepted signals from an RC receiver.
@TRXSlashPWR 5 років тому
6. Semester Elektrische Maschinen II - da kommen Erinnerungen hoch :D
@dr_stoned_4207 5 років тому
yeaaaaaaaa new sponsore.
@technicaldanish4676 5 років тому
Please make a video on diy pwm circuit board for hho cells (12v 60amp)
@jhsevs 2 роки тому
Hi, Scott! What is field weakening? Is it related to FOC? (Maybe a video idea?)
@danilolattaro 2 роки тому
Field Weakening is the technique of using additional current on precise locations of the stator (in respect to the rotor location) in order to minimize the rotor magnetic field and thus the back-EMF voltage. With a lower back-EMF it is possible to achieve higher rotor speeds because your source (i.e. battery) now has a higher voltage than the stator and so current can flow to the motor. When your back-EMF voltage matches your battery voltage (maximum speed) current can no longer be pushed to the motor, hence speed can't increase even more.
@jhsevs 2 роки тому
@@danilolattaro that is a very good explanation, thank you! Makes total sense now.
GreatScott!
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