Ho na le mekhoa e mengata ea ho fokotsa harmonic, empa ha ho na tharollo ea ho rarolla mathata ohle.Phepelo ea motlakase e fapaneng, mojaro o fapaneng, o hloka hore re fane ka tharollo e molemohali ea ho fokotsa harmonic.
Tafole e ka tlase e bapisa ea THDi ea mahlale a fapaneng a ho fokotsa matla pele.
| Maqhubu a tšeletseng vfd ha ho seactor/ kgama | Vfd e ts'eletseng e ts'eletseng Low DC bese capacitor | Six pulse vfd+5% reactor/choke | 3 phase vfd e sebetsang ka pele ea ho qetela | Six pulse vfd+passive filter | Multipulse vfd | |
| TDi e tloaelehileng | 90--120% | 35--40% | 35--45% | 3--5% | 5--10% | 12 lebelo: 10-12% 18 lebelo: 5--6% |
| Melemo | Tharollo e bonolo le e theko e tlaase, e amohelehang bakeng sa ho kenya lisebelisoa tse nang le palo e tlaase ea li-drive tse nyenyane | Tharollo e bonolo le e theko e tlase e fellang ka ho fokotsa tse ling tsa li-harmonics tsa hajoale | Tharollo e tloaelehileng lits'ebetsong tsa HVAC | Ts'ebetso e ntle ka ho fetisisa ea li-harmonic tsa tharollo efe kapa efe. Bokhoni ba ho eketsa matla a motlakase nakong ea maemo a tlase. Unity fundamental power factor. E ka fana ka braking e nchafatsang | Ho nka sebaka sa 'mele se fumaneha, sefahla sa "harmonic" se ka kenyelletsoang ka mor'a hore koloi e kenngoe, haeba li-harmonics li ikemiselitse ho ba bothata. | Traditional harmonic mokhoa oa ho fokotsa. |
| Mebe | Litaba tse phahameng tsa harmonic, tse sa khothaletsoang bakeng sa ho kenya lisebelisoa tse nang le li-drive tse ngata. | Ho khopamisoa ha motlakase o phahameng, ho feta li-pulse vfd tse tšeletseng tse nang le 5% reactor/cheme. | Litsamaiso tse nang le palo e kholo kapa boholo bo boholo ba li-drive, li ka hloka phokotso e eketsehileng ea harmonic. | Koloi ka boeona e hlahisa mocheso o fokolang hanyane ho feta o tloaelehileng oa pulse drive o nang le reactor. | Ntho e etellang pele ea matla ho meroalo e bobebe ntle le haeba li-capacitor tsa sefa li tima ea potoloho. Kotsi ea li-resonances pakeng tsa li-filter capacitor le li-capacitor tse ling tsamaisong. | Ts'ebetso e nepahetseng ea li-harmonic e hloka phepelo ea matla a AC e leka-lekaneng ka mokhoa o phethahetseng o nang le tšitiso e fokolang ea bokamorao. Ho thata haholo ho e khutlisa tšimong. |
Ka nts'etsopele e tsoelang pele ea theknoloji ea matla ea IGBT, e ncha ea maemo a mararosetlhoa se sebetsange khothalelitsoe haholo le ho sebelisoa 'marakeng.APFe fumana letšoao la hona joale ka nako ea sebele ka mochine oa motlakase oa ka ntle, 'me o arola karolo ea harmonic ka potoloho ea ho lemoha ka hare,' me e hlahisa matšeliso a hona joale ka karolo e fapaneng ea li-harmonics tsamaisong ka mochine oa motlakase oa IGBT ho hlokomela mosebetsi oa ho hloekisa. ho tsoa ho harmonic.
Theko ea puseletso ea tlhahiso eaAPFe fapana ka nepo ho latela li-harmonics tse matla tsa sistimi, ka hona ho ke ke ha e-ba le bothata ba matšeliso.Holim'a moo,APFe na le ts'ebetso ea ts'ireletso e feteletseng.Ha harmonic ea tsamaiso e le kholo ho feta matla a filthara, sesebelisoa se ka fokotsa tlhahiso ea matla a 100% ntle le ho jara.
Nako ea poso: Nov-24-2023