Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Arduino - servo motor
#56
Uki, dobio si KECA ko vrata !!!

Čuj njega : LUFT kod PID regulacije ...
Luft postoji ili ne postoji kada probavaš nove cipele, itd ...

***************

Kod PID regulacije postoji samo greška regulacije koja predstavlja razliku izmedju SP(set point) i PV(process variable).
Koliko pojačaš pomenutu grešku, toliki izlaz u rasponu od 0 do 100% imaš na izlazu regulatora.

To "koliko ćeš je pojačati" zavisi od tebe i to je P dejstvo ( proporcionalno )

Dalje, pošto P sam po sebi ne može napraviti na kraju grešku u regulaciji bez ikakvog ostatka, (jer ni u teoriji ne
bi funkcionisao bez te preostale greške) nastupa I (integralno dejstvo) koje u zadatom vremenu ima funkciju da
iskoriguje grešku preostalu od dejstva P regulatora. I će dejstvovati (brže ili sporije) sve dok konačno greška
u poziciji DC serva ne bude tačno nula.

D dejstvo (diferencijalno) kod DC serva služi za "kočenje", jer ako se P namesti tako da samo po sebi
nema premašaja, odnosno da D dejstvo nema funkciju ili je isključeno, onda će brzina odziva biti spora.
Zato je pojačanje nešo veće a onda D dejstvo "napravi aktivno kočenje" DC motora.

Inače D dejstvo služi za korekciju naglih promena u sistemu, jer bez njega bi odziv na naglu promenu bio spor.
Tada D naglo "cimne" na koju stranu treba a zatim POLAKO vrati početnu vrednost.
(kao kad voziš auto pa uočiš rupu, - naglo cimneš da je izbegneš a onda polako vraćaš volan ...)

****
Sve je ovo prelepo objašnjeno u tekstovima ( ima ih mnogo i na Srpskom) o Ziegler - Nichols metodi podešavanja
PID petlje ...

I još jednu stvar na kraju, a što je veoma bitno !

NIKO ne može podesiti PID parametre ako nije prisutan direktno na sistemu regulacije.

PID se podešava tek kada je motor zakačen na svu potrebnu mehaniku, jer će bilo kakva promena
u sistemu razdesiti optimalno podešenu regulaciju.

Znači posle podešavanja PID-a nema više promena na celom sistemu, počevši od napajanja drajvera
pa do mehanike(promena težine neke komponente itd..)

Ako se bilo šta menja- sledi OBAVEZNO ponovno podešavanje PID parametara !

****
Svega sam se nagledao i naslušao do sada...
Na oglasima "LIK" prodaje u kompletu DC Servo motor i drajver sa "unapred podešenim PID parametrima"
(kako on kaže: Servo je unapred "programiran", da kupac više nema nikakvih problema i samo ugradi na mašinu ...)

Pozz
Reply


Messages In This Thread
Arduino - servo motor - by uki122 - 09-28-2016, 01:24 PM
RE: Arduino - servo motor - by andrics - 09-29-2016, 09:46 PM
RE: Arduino - servo motor - by uki122 - 09-30-2016, 12:39 AM
RE: Arduino - servo motor - by uki122 - 10-02-2016, 10:37 AM
RE: Arduino - servo motor - by andrics - 10-02-2016, 11:47 AM
RE: Arduino - servo motor - by mikikg - 10-02-2016, 11:49 AM
RE: Arduino - servo motor - by uki122 - 10-02-2016, 01:08 PM
RE: Arduino - servo motor - by andrics - 10-02-2016, 03:26 PM
RE: Arduino - servo motor - by uki122 - 10-02-2016, 04:23 PM
RE: Arduino - servo motor - by andrics - 10-02-2016, 07:17 PM
RE: Arduino - servo motor - by uki122 - 10-02-2016, 09:36 PM
RE: Arduino - servo motor - by uki122 - 10-03-2016, 12:39 AM
RE: Arduino - servo motor - by uki122 - 10-03-2016, 08:00 PM
RE: Arduino - servo motor - by Želja - 10-03-2016, 08:09 PM
RE: Arduino - servo motor - by uki122 - 10-03-2016, 08:12 PM
RE: Arduino - servo motor - by Želja - 10-03-2016, 08:18 PM
RE: Arduino - servo motor - by uki122 - 10-03-2016, 08:32 PM
RE: Arduino - servo motor - by andrics - 10-03-2016, 08:53 PM
RE: Arduino - servo motor - by Želja - 10-03-2016, 08:54 PM
RE: Arduino - servo motor - by uki122 - 10-03-2016, 10:23 PM
RE: Arduino - servo motor - by andrics - 10-04-2016, 10:39 AM
RE: Arduino - servo motor - by Želja - 10-04-2016, 03:21 PM
RE: Arduino - servo motor - by uki122 - 10-04-2016, 05:18 PM
RE: Arduino - servo motor - by uki122 - 10-05-2016, 08:58 AM
RE: Arduino - servo motor - by mikikg - 10-05-2016, 12:52 PM
RE: Arduino - servo motor - by andrics - 10-05-2016, 06:21 PM
RE: Arduino - servo motor - by uki122 - 10-05-2016, 07:09 PM
RE: Arduino - servo motor - by uki122 - 10-05-2016, 10:37 PM
RE: Arduino - servo motor - by andrics - 10-06-2016, 08:06 PM
RE: Arduino - servo motor - by uki122 - 10-06-2016, 10:11 PM
RE: Arduino - servo motor - by andrics - 10-06-2016, 10:32 PM
RE: Arduino - servo motor - by uki122 - 10-06-2016, 10:35 PM
RE: Arduino - servo motor - by andrics - 10-06-2016, 10:41 PM
RE: Arduino - servo motor - by andrics - 10-06-2016, 10:46 PM
RE: Arduino - servo motor - by uki122 - 10-06-2016, 10:49 PM
RE: Arduino - servo motor - by uki122 - 10-06-2016, 10:51 PM
RE: Arduino - servo motor - by gorankg - 10-06-2016, 10:52 PM
RE: Arduino - servo motor - by uki122 - 10-06-2016, 10:56 PM
RE: Arduino - servo motor - by andrics - 10-06-2016, 11:04 PM
RE: Arduino - servo motor - by gorankg - 10-06-2016, 11:26 PM
RE: Arduino - servo motor - by uki122 - 10-06-2016, 11:26 PM
RE: Arduino - servo motor - by gorankg - 10-06-2016, 11:30 PM
RE: Arduino - servo motor - by uki122 - 10-06-2016, 11:38 PM
RE: Arduino - servo motor - by me[R]a - 10-07-2016, 12:11 AM
RE: Arduino - servo motor - by uki122 - 10-07-2016, 02:17 PM
RE: Arduino - servo motor - by gorankg - 10-07-2016, 02:42 PM
RE: Arduino - servo motor - by uki122 - 10-07-2016, 09:18 PM
RE: Arduino - servo motor - by gorankg - 10-08-2016, 07:36 AM
RE: Arduino - servo motor - by uki122 - 10-08-2016, 06:58 PM
RE: Arduino - servo motor - by uki122 - 10-17-2016, 08:44 PM
RE: Arduino - servo motor - by gorankg - 10-17-2016, 09:16 PM
RE: Arduino - servo motor - by uki122 - 10-18-2016, 05:12 PM
RE: Arduino - servo motor - by uki122 - 10-21-2016, 04:45 PM
RE: Arduino - servo motor - by Želja - 10-21-2016, 05:09 PM
RE: Arduino - servo motor - by uki122 - 10-22-2016, 11:14 PM
RE: Arduino - servo motor - by Želja - 10-23-2016, 01:22 PM
RE: Arduino - servo motor - by mikikg - 10-23-2016, 01:34 PM
RE: Arduino - servo motor - by Želja - 10-23-2016, 01:44 PM
RE: Arduino - servo motor - by mikikg - 10-23-2016, 01:54 PM
RE: Arduino - servo motor - by gorankg - 10-23-2016, 07:49 PM
RE: Arduino - servo motor - by Makso - 03-12-2017, 12:35 AM
RE: Arduino - servo motor - by gimba - 03-12-2017, 09:39 AM
RE: Arduino - servo motor - by Makso - 03-12-2017, 01:44 PM
RE: Arduino - servo motor - by Makso - 03-12-2017, 02:38 PM
RE: Arduino - servo motor - by gimba - 03-12-2017, 07:38 PM
RE: Arduino - servo motor - by Želja - 03-12-2017, 09:43 PM
RE: Arduino - servo motor - by vojinilic - 03-12-2017, 10:16 PM
RE: Arduino - servo motor - by gimba - 03-12-2017, 10:35 PM
RE: Arduino - servo motor - by Želja - 03-12-2017, 10:39 PM
RE: Arduino - servo motor - by Želja - 03-12-2017, 10:53 PM
RE: Arduino - servo motor - by vojinilic - 03-12-2017, 10:55 PM
RE: Arduino - servo motor - by Želja - 03-12-2017, 11:06 PM
RE: Arduino - servo motor - by vojinilic - 03-12-2017, 11:12 PM
RE: Arduino - servo motor - by gimba - 03-12-2017, 11:03 PM
RE: Arduino - servo motor - by Želja - 03-12-2017, 11:13 PM
RE: Arduino - servo motor - by vojinilic - 03-12-2017, 11:14 PM
RE: Arduino - servo motor - by Makso - 03-12-2017, 11:31 PM
RE: Arduino - servo motor - by gimba - 03-13-2017, 05:15 PM
RE: Arduino - servo motor - by mikikg - 03-13-2017, 12:49 AM
RE: Arduino - servo motor - by vojinilic - 03-13-2017, 07:16 AM
RE: Arduino - servo motor - by mikikg - 03-13-2017, 07:34 AM
RE: Arduino - servo motor - by Makso - 03-13-2017, 06:05 PM
RE: Arduino - servo motor - by gimba - 03-13-2017, 06:55 PM
RE: Arduino - servo motor - by vojinilic - 03-13-2017, 07:40 PM
RE: Arduino - servo motor - by vojinilic - 03-13-2017, 07:43 PM
RE: Arduino - servo motor - by gimba - 03-13-2017, 08:01 PM
RE: Arduino - servo motor - by gimba - 03-13-2017, 08:03 PM
RE: Arduino - servo motor - by me[R]a - 03-14-2017, 11:58 AM
RE: Arduino - servo motor - by mikikg - 03-15-2017, 08:19 AM
RE: Arduino - servo motor - by mikikg - 03-16-2017, 01:53 PM
RE: Arduino - servo motor - by Macola - 03-17-2017, 11:45 AM
RE: Arduino - servo motor - by mikikg - 03-17-2017, 12:38 PM
RE: Arduino - servo motor - by mikikg - 03-17-2017, 12:57 PM
RE: Arduino - servo motor - by Macola - 03-17-2017, 01:12 PM
RE: Arduino - servo motor - by Macola - 03-17-2017, 12:58 PM
RE: Arduino - servo motor - by mikikg - 03-17-2017, 01:19 PM
RE: Arduino - servo motor - by Macola - 03-17-2017, 01:28 PM
RE: Arduino - servo motor - by Macola - 03-17-2017, 01:33 PM
RE: Arduino - servo motor - by mikikg - 03-17-2017, 07:48 PM
RE: Arduino - servo motor - by Macola - 03-17-2017, 08:05 PM
RE: Arduino - servo motor - by Macola - 03-17-2017, 08:12 PM
RE: Arduino - servo motor - by Macola - 03-17-2017, 08:14 PM
RE: Arduino - servo motor - by mikikg - 03-17-2017, 08:15 PM
RE: Arduino - servo motor - by Macola - 03-17-2017, 08:17 PM
RE: Arduino - servo motor - by mikikg - 03-17-2017, 08:21 PM
RE: Arduino - servo motor - by Macola - 03-17-2017, 08:26 PM
RE: Arduino - servo motor - by Macola - 03-17-2017, 08:27 PM
RE: Arduino - servo motor - by Macola - 03-17-2017, 08:36 PM
RE: Arduino - servo motor - by mikikg - 03-17-2017, 08:44 PM
RE: Arduino - servo motor - by Macola - 03-17-2017, 08:49 PM
RE: Arduino - servo motor - by Macola - 03-17-2017, 08:54 PM
RE: Arduino - servo motor - by mikikg - 03-17-2017, 08:58 PM
RE: Arduino - servo motor - by Macola - 03-18-2017, 03:05 PM
RE: Arduino - servo motor - by mikikg - 03-18-2017, 03:49 PM
RE: Arduino - servo motor - by vojinilic - 03-18-2017, 08:01 PM
RE: Arduino - servo motor - by mikikg - 03-18-2017, 05:06 PM
RE: Arduino - servo motor - by mikikg - 03-18-2017, 05:39 PM
RE: Arduino - servo motor - by andrics - 03-18-2017, 07:47 PM
RE: Arduino - servo motor - by mikikg - 03-18-2017, 08:56 PM
RE: Arduino - servo motor - by mikikg - 03-18-2017, 09:05 PM
RE: Arduino - servo motor - by vojinilic - 03-18-2017, 09:24 PM
RE: Arduino - servo motor - by mikikg - 03-19-2017, 12:13 PM
RE: Arduino - servo motor - by vojinilic - 03-19-2017, 01:42 PM
RE: Arduino - servo motor - by npejcic - 03-19-2017, 12:18 PM
RE: Arduino - servo motor - by mikikg - 03-19-2017, 12:55 PM
RE: Arduino - servo motor - by Makso - 04-15-2017, 11:21 PM
RE: Arduino - servo motor - by gimba - 04-16-2017, 10:51 AM
RE: Arduino - servo motor - by Makso - 04-16-2017, 11:26 AM
RE: Arduino - servo motor - by gimba - 04-16-2017, 11:31 AM
RE: Arduino - servo motor - by Makso - 04-16-2017, 11:39 AM
RE: Arduino - servo motor - by gimba - 04-16-2017, 12:54 PM
RE: Arduino - servo motor - by Makso - 04-16-2017, 01:01 PM
RE: Arduino - servo motor - by gimba - 04-16-2017, 01:10 PM
RE: Arduino - servo motor - by Makso - 04-16-2017, 04:49 PM
RE: Arduino - servo motor - by uki122 - 05-10-2017, 09:34 PM
RE: Arduino - servo motor - by Makso - 05-10-2017, 10:54 PM
RE: Arduino - servo motor - by uki122 - 05-15-2017, 04:31 PM
RE: Upravo stiglo - by mikikg - 03-14-2017, 01:37 AM

Forum Jump:


Users browsing this thread: 3 Guest(s)