The motlakase o phahameng oa motlakase ke sesebelisoa sa motlakase sa AC-DC-AC se nang le sebopeho sa li-unit tse ngata.E hlokomela sinusoidal waveform ea ho kenya letsoho, motlakase o hlahisoang le hona joale ka theknoloji ea superposition e ngata, e laola hantle li-harmonics, 'me e fokotsa tšilafalo ho grid ea matla le mojaro.Ka nako e ts'oanang, e na le lisebelisoa tse feletseng tsa tšireletso le mehato ea ho sireletsafrequency converter le ho laela, e le ho felisa le ho qoba tahlehelo e bakoang ke maemo a sa tšoaneng a rarahaneng, le ho etsa melemo e mengata bakeng sa basebelisi.
2. Tšireletso eamotlakase o phahameng oa motlakase
2.1 Tšireletso ea mohala o kenang oa motlakase o phahameng oa motlakase
Ts'ireletso ea mohala o kenang ke ts'ireletso ea pheletso ea mohala o kenang oa mosebelisi lefrequency converter, ho kenyelletsa tšireletso ea lehalima, tšireletso ea fatše, ts'ireletso ea tahlehelo ea mohato, tšireletso ea reverse phase, tšireletso e sa leka-lekaneng, tšireletso ea overvoltage, tšireletso ea transformer joalo-joalo.Lisebelisoa tsena tsa ts'ireletso hangata li kentsoe pheletsong e kenang ea inverter, pele o tsamaisa inverter e tlameha ho qala ho netefatsa hore ha ho na bothata ho ts'ireletso ea mohala pele o sebetsa.
2.1.1 Tšireletso ea lehalima ke mofuta oa tšireletso ea lehalima ka sets'oants'o se kentsoeng ka har'a khabinete ea bypass kapa pheletsong e kenang ea inverter.The arrester ke sesebelisoa sa motlakase se ka lokollang lehalima kapa sa lokolla matla a overvoltage a ts'ebetso ea tsamaiso ea matla, ho sireletsa lisebelisoa tsa motlakase ho tsoa kotsi ea ho fetella hang-hang, le ho khaola motlakase o tsoelang pele ho qoba tsamaiso e khutšoanyane ea potoloho.Motho ea ts'oereng o kopantsoe pakeng tsa mohala oa ho kenya oa inverter le fatše, 'me o kopantsoe ka tsela e tšoanang le inverter e sirelelitsoeng.Ha boleng ba overvoltage bo fihla ho matla a ts'ebetso a boletsoeng, motho ea ts'oereng hang-hang o nka khato, a phalla ka tefiso, a fokotsa amplitude ea overvoltage, 'me a sireletsa thepa ea thepa;Ka mor'a hore motlakase o tloaelehe, motho ea tšoarang o potlakela ho khutlela boemong ba hae ba pele ho etsa bonnete ba hore tsamaiso e tloaelehileng e sebetsa le ho thibela tšenyo e bakoang ke ho otla ha lehalima.
2.1.2 Tšireletso ea fatše ke ho kenya mochine oa transformer oa zero-sequence qetellong ea inverter.Molao-motheo oa ts'ireletso ea hona joale ea tatellano ea zero e itšetlehile ka molao oa hona joale oa Kirchhoff, 'me kakaretso ea algebraic ea hona joale e rarahaneng e phallang sebakeng leha e le sefe sa potoloho e lekana le zero.Ha mohala le lisebelisoa tsa motlakase li tloaelehile, palo ea vector ea hona joale karolong e 'ngoe le e' ngoe e lekana le zero, kahoo moea oa bobeli oa transformer ea morao-rao ea tatellano ea zero ha e na pontšo ea pontšo, 'me actuator ha e sebetse.Ha phoso e itseng ea fatše e etsahala, kakaretso ea vector ea mohato ka mong oa hona joale ha se zero, 'me phoso ea hona joale e hlahisa matla a khoheli mokokotlong oa transformer ea hona joale ea tatellano ea zero,' me ho kenngoa ha motlakase oa bobeli oa transformer ea hona joale ea tatellano ea zero. fetisetsoa lebokoseng le ka sehloohong la ho beha leihlo, ebe taelo ea ts'ireletso e fanoa ho fihlela sepheo sa ho theha tšireletso ea liphoso.
2.1.3 Ho haella ha mohato, mohato o ka morao, tšireletso e sa leka-lekaneng, tšireletso ea overvoltage.Ho haella ha phase, reverse phase, unbalance degree protection, overvoltage protection haholo-holo ke inverter input voltage feedback version kapa voltage transformer bakeng sa line voltage acquisition, ebe ka boto ea CPU ho fumana hore na ke khaello ea phase, reverse phase, input. ho leka-lekana gagamalo, ebang ke overvoltage, hobane haeba karolo input, kapa reverse phase, le voltage imbalance kapa overvoltage ke ho le bonolo ho etsa hore transformer ho chesa.Kapa motlakase o senyehile, kapa motlakase o khutlisetsoa morao.
2.1.4 Tšireletso ea transfoma.Themotlakase o phahameng oa motlakase e entsoe ka likarolo tse tharo feela: Khabinete ea Transformer, khabinete ea yuniti ea matla, sebopeho sa khabinete ea taolo, sesebelisoa sa transfoma ke ts'ebeliso ea sefetoleli sa mofuta o omileng ho fetolela letoto la li-angles tse fapaneng tsa phepelo ea motlakase e tlase bakeng sa yuniti ea matla, transformer e ka pholile feela ka moea o pholileng, kahoo tšireletso ea transformer e haholo-holo ka tšireletso ea mocheso oa transformer, ho thibela mocheso oa transformer o phahame haholo, 'me o etsa hore coil ea transformer e chesoe.Tekanyo ea mocheso e kenngoa ka har'a coil ea mekhahlelo e meraro ea transformer, 'me karolo e' ngoe ea mocheso oa mocheso o kopantsoe le mochine oa ho laola mocheso.Sesebelisoa sa ho laola mocheso se ka beha mocheso o itekanetseng oa ho qala oa fan ka tlase ho transformer, mocheso oa alamo, le mocheso oa leeto.Ka nako e ts'oanang, mocheso oa coil e 'ngoe le e' ngoe ea mohato o bontšoa ka makhetlo a 'maloa.Tlhahisoleseding ea alamo e tla bontšoa ho sebopeho sa mosebedisi, 'me PLC e tla alamo kapa tšireletso ea leeto.
2.2 Tšireletso ea mahlakoreng a motlakase a phahameng a motlakase
Tšireletso ea line ea tlhahiso eamotlakase o phahameng oa motlakase ke tshireletso ya dipholo tsa lehlakoreng la inverter le mojaro, ho akarelletsa le tlhahiso overvoltage tshireletso, tlhahiso overcurrent tshireletso, output short potoloho tshireletso, motor overtemperature tshireletso joalo-joalo.
2.2.1 Output Tšireletso ea overvoltage.Tšireletso ea tlhahiso ea overvoltage e bokella motlakase oa tlhahiso ka boto ea sampole ea voltage ka lehlakoreng la tlhahiso.Haeba motlakase oa tlhahiso o phahame haholo, sistimi e tla lla ka bo eona.
2.2.2 Ts'ireletso ea Phello e Felletseng.Ts'ireletso ea Output overcurrent e lemoha tlhahiso ea hajoale e bokelletsoeng ke Hall mme e e bapise ho fumana hore na e baka ho feta tekano.
2.2.3 Tšireletso e hlahisoang ke nako e khuts'oane.Mehato ea tšireletso bakeng sa phoso e khutšoanyane ea potoloho pakeng tsa stator windings le lithapo tse etellang pele tsa motlakase.Haeba inverter e etsa qeto ea hore tlhahiso ke potoloho e khutšoanyane, hang-hang e thibela mochine oa matla 'me e emisa ho sebetsa.
Nako ea poso: Jul-28-2023