Ukwazi kahle le mibono ye-inverter engama-35 kungakhuphula ubuchwepheshe bakho bufinyelele emazingeni ahlaba umxhwele!
Ukwazi kahle le mibono ye-inverter engama-35 kungakhuphula ubuchwepheshe bakho bufinyelele emazingeni ahlaba umxhwele!
Itemu elithi VFD (Variable-frequency Drive) le-inverter libonisa umsebenzi walo wokulawula amamotho e-AC ngokulungisa imvamisa kanye nobukhulu bokunikezwa kwamandla. E-Asia, ikakhulukazi e-China naseNingizimu Korea, igama elithi VVVF (Variable Voltage Variable Frequency Inverter) lisetshenziswe ngenxa yethonya laseJapane. I-VVVF imele i-Varable Voltage kanye ne-Varable Frequency, ibhekisela ekulungisweni kwakho kokubili amandla kagesi kanye nefrikhwensi, kuyilapho i-CVCF (Constant Voltage kanye ne-Constant Frequency) ikhombisa i-voltage engaguquki kanye nefrikhwensi.
Imithombo yamandla ihlukaniswe yaba yi-AC ne-DC. Amandla amaningi e-DC atholakala ku-AC ngokuguqulwa, ukulungisa, nokuhlunga. Amandla e-AC ahlanganisa cishe u-95% wawo wonke amandla okusetshenziswa kwamandla, ngamandla e-AC esigaba esisodwa kanye nesigaba sesithathu alandela amazinga athile kagesi kanye nemvamisa emazweni ahlukene. Isibonelo, e-Mainland China, isigaba esisodwa se-AC singu-220V kanye nesigaba sesithathu se-AC singu-380V, kokubili ku-50Hz. I-inverter iguqula i-voltage engaguquki kanye namandla e-AC ayimvamisa ibe i-voltage eguquguqukayo noma amandla e-AC emvamisa. Le nqubo ifaka phakathi ukulungisa i-AC iye ku-DC bese kuguqulwa i-DC ibuyele ku-AC, le nqubo yakamuva ibizwa ngokuqondile ngokuthi "inversion." Amadivayisi aguqula i-DC ibe ifrikhwensi engaguquki kanye ne-voltage AC abizwa ngokuthi ama-inverters, kuyilapho lawo avumela ifrikhwensi eguquguqukayo kanye ne-voltage abizwa ngokuthi amadrayivu e-variable-frequency.
Iziguquli eziphumayo ezilingisa amagagasi e-sine, asetshenziselwa ngokuyinhloko ukulawula isivinini sezigaba ezintathu zamamotho asynchronous, futhi aziwa nangokuthi izilawuli zejubane eziguquguqukayo. Kuzinhlelo zokusebenza ezidinga ama-waveform ekhwalithi ephezulu, njengemishini yokuhlola ekusetshenzisweni kwezinsimbi, i-waveform iyacwengwa ukuze ikhiqize i-sine wave ejwayelekile, futhi lezi zixhobo zibizwa ngokuthi i-variable-frequency power supply. Izinsiza zamandla eziguquguqukayo ngokuvamile zibiza ngokuphindwe ka-15 kuya kwezingu-20 kunamadrayivu e-variable-frequency. Ingxenye eyinhloko enesibopho sokukhiqiza i-voltage eguquguqukayo noma imvamisa kumshini wokuguqula izinto "i-inverter," yingakho umkhiqizo ubizwa ngokuthi "inverter." Ama-inverters asetshenziswa nasezintweni zikagesi zasendlini, njengama-air conditioner namalambu e-fluorescent. Kuzinhlelo zokusebenza zokulawula izinjini, ama-inverter angalungisa kokubili i-voltage ne-frequency, kuyilapho lawo asetshenziselwa izibani ze-fluorescent ikakhulukazi alawula imvamisa yokuphakelwa kwamandla. Amadivayisi asezimotweni aguqula amandla ebhethri (DC) abe yi-AC nawo athengiswa ngaphansi kwegama elithi "inverter." Umgomo wokusebenza wama-inverter usetshenziswa kabanzi emikhakheni ehlukahlukene, njengamandla kagesi wekhompyutha, lapho ama-inverter ecindezela i-voltage ehlehlayo, ukushintshashintsha kwemvamisa, kanye nokucisha kukagesi ngaso leso sikhathi.
Yini i-inverter?
I-inverter iyisisetshenziswa esiguqula amandla efrikhwensi yensiza iwayise kwenye ifrikhwensi kusetshenziswa isenzo sokushintsha amadivaysi e-semiconductor yamandla. Iqukethe izifunda ezimbili eziyinhloko: isifunda esiyinhloko (i-module rectifier, i-electrolytic capacitor, ne-inverter module) kanye nesifunda sokulawula (ukushintsha ibhodi lokunikezela amandla kanye nebhodi lesifunda lokulawula). I-CPU ifakwe ebhodini lesekhethi yokulawula, nesofthiwe yokusebenza ye-inverter efakwe ku-CPU. Isofthiwe yemodeli efanayo ye-inverter ngokuvamile iyalungiswa, ngaphandle kwe-Sanjing inverter, isofthiwe yayo engalungiswa ngokusekelwe ezidingweni zokusetshenziswa.
Uyini umehluko phakathi kwe-PWM ne-PAM?
I-PWM (I-Pulse Width Modulation) ilungisa ububanzi bama-pulse esitimeleni esishayelayo ngokuya ngephethini ethile ukuze ilawule okukhiphayo kanye ne-waveform. I-PAM (I-Pulse Amplitude Modulation) ilungisa i-amplitude yama-pulses esitimeleni sokushaya ukuze ilawule okukhiphayo kanye ne-waveform.
Uyini umehluko phakathi kwe-voltage-type kanye ne-current-type inverters?
Isifunda esikhulu se-inverter singahlukaniswa kabanzi sibe izinhlobo ezimbili: ama-voltage-type inverters aguqula umthombo wamandla kagesi we-DC abe yi-AC esebenzisa ama-capacitor okuhlunga kwesekethe ye-DC, kuyilapho iziguquli zohlobo lwamanje ziguqula umthombo wamanje we-DC ube yi-AC zisebenzisa ama-inductors okuhlunga kwesekethe ye-DC.
Kungani i-voltage nemvamisa ye-inverter ishintsha ngokulinganayo?
I-torque ye-induction motor ikhiqizwa ukuxhumana phakathi kwe-magnetic flux kanye ne-rotor current. Ngefrikhwensi elinganiselwe, uma i-voltage ingashintshi futhi imvamisa incishisiwe, i-flux kazibuthe ingaba ngokweqile, okuholela ekugcwalisweni kwesekethe kazibuthe kanye nokulimala okungenzeka kwemoto. Ngakho-ke, i-voltage ne-frequency kufanele ishintshe ngokulinganayo. Le ndlela yokulawula ivame ukusetshenziswa kuma-inverter okonga amandla kubalandeli namaphampu.
Uma i-induction motor iqhutshwa amandla emvamisa ye-utility kanye nokwehla kwe-voltage, ukwanda kwamanje. Kumamotor aqhutshwa yi-inverter, uma i-voltage yehla lapho imvamisa yehla, ingabe iyanda manje?
Uma imvamisa yehla (isivinini esiphansi), inyuka yamanje ukuze kugcinwe ukuphuma kwamandla okufanayo. Kodwa-ke, ngaphansi kwezimo ze-torque eziqhubekayo, okwamanje kuhlala kuzinzile.
Imaphi amandla okuqala kanye ne-torque lapho usebenzisa i-motor ene-inverter?
Nge-inverter, njengoba i-motor ishesha, imvamisa kanye ne-voltage ziyanda ngokufanayo, kukhawulelwe ukuqala kwamanje kube ngaphansi kuka-150% wamanje olinganiselwe (125% kuya ku-200% kuye ngemodeli). I-inthanethi eqondile eqala ngamandla efrikhwensi yensiza iphumela ekuqaliseni imisinga izikhathi eziyisithupha ukuya kweziyisikhombisa kunamanje ezilinganiselwe, okubangela ukucindezelwa komshini nokogesi. Ama-motor aqhutshwa yi-inverter aqala kahle (ngesikhathi sokuqala esinwetshiwe), ngokuqala kwamanje ku-1.2 kuya ku-1.5 izikhathi zikalwe zamanje kanye ne-torque eqala ku-70% kuya ku-120% we-torque elinganiselwe. Kuma-inverter ane-othomathikhi ye-torque boost, i-torque yokuqala idlula i-100%, ivumela ukuqala kokulayisha okugcwele.
Iyini imodi ye-V/f?
Lapho imvamisa yehla, i-voltage V nayo yehla ngokulinganayo. Ubudlelwano bokulingana phakathi kuka-V no-f bunqunywa ngokusekelwe kuzici zemoto futhi ngokuvamile kugcinwa kumemori yesilawuli (i-ROM). Izici eziningana zingakhethwa ngokushintsha noma ama-potentiometers.
Ishintsha kanjani i-torque ye-motor lapho i-V no-f ilungiswa ngokulingana?
Uma i-voltage yehliswa ngokulinganayo nemvamisa, ukuthambekela kwetorque ukwehla ngesivinini esiphansi kuvela ngenxa yokuncipha kwe-AC impedance kanye nokumelana ne-DC okungashintshiwe. Ukuze unxephezele futhi uzuze itorque yokuqala eyanele kumafrikhwensi aphansi, i-voltage ephumayo kufanele ikhuliswe kancane. Lesi sinxephezelo, esibizwa ngokuthi i-torque boost, singafinyelelwa ngezindlela ezihlukahlukene, okuhlanganisa ukulungiswa okuzenzakalelayo, ukukhethwa kwemodi ye-V/f, noma izilungiselelo ze-potentiometer.
Uma imanuwali icacisa ibanga lesivinini elingu-60~6Hz (10:1), ingabe lokhu kusho ukuthi awekho okukhipha amandla ngaphansi kuka-6Hz?
Amandla asengakhishwa ngaphansi kuka-6Hz. Kodwa-ke, uma kucatshangelwa ukukhuphuka kwezinga lokushisa kwemoto kanye ne-torque yokuqala, imvamisa encane yokusebenza isethwe eduze kuka-6Hz ukugwema ukushisa ngokweqile ngenkathi kugcinwa ukuphuma kwetorque elinganiselwe. Imvamisa yangempela yokuphumayo (imvamisa yokuqala) ye-inverter iyahlukahluka ngemodeli, ngokuvamile isukela ku-0.5Hz kuya ku-3Hz.
Kungenzeka yini ukugcina i-torque engaguquki ngenhlanganisela yemoto ejwayelekile ngaphezu kwe-60Hz?
Ngokuvamile, akunakwenzeka. Ngaphezu kuka-60Hz (noma u-50Hz kwezinye izindlela), i-voltage ihlala ingashintshi, okuholela ezicini zamandla ezingaguquki. Lapho i-torque engaguquki idingeka ngesivinini esikhulu, ukukhethwa ngokucophelela kwamandla e-motor kanye ne-inverter kubalulekile.
Kuyini ukulawulwa kwe-open-loop?
Uma i-speed detector (PG) ifakiwe emoteni futhi isivinini sangempela sibuyiselwa edivayisini yokulawula ukuze ilawulwe, sibizwa ngokuthi "i-closed-loop" control. Ukusebenza ngaphandle kwempendulo ye-PG kubizwa ngokuthi "open-loop" control. Iziguquli zenhloso evamile ngokuvamile zisebenzisa isilawuli se-loop evulekile, nakuba amanye amamodeli enikeza impendulo ye-PG njengenketho. Isilawuli se-Speed sensorless closed-loop silinganisela isivinini sangempela semoto ngokusekelwe kumodeli yezibalo ye-flux, kwakheka ngempumelelo isistimu yokulawula iluphu evaliwe enenzwa yesivinini ebonakalayo.
Kwenzekani uma kunomehluko phakathi kwesivinini sangempela nesethiwe?
Ekulawulweni kwe-loop evulekile, noma ngabe i-inverter ikhipha imvamisa esethiwe, isivinini semoto singahluka phakathi kwebanga lokushelela elilinganiselwe (1% kuya ku-5%) ngaphansi komthwalo. Kuzinhlelo zokusebenza ezidinga ukunemba kokulawula isivinini kanye nokusebenza kwesivinini esiseduze naphezu kwezinguquko zomthwalo, ama-inverter anempendulo ye-PG (atholakala njengenketho) angasetshenziswa.
Ingabe ukunemba kwejubane kungathuthukiswa kusetshenziswa injini enempendulo ye-PG?
Iziguquli ezinempendulo ye-PG zinikeza ukunemba okuthuthukisiwe kwesivinini. Kodwa-ke, ukunemba kwangempela kwejubane kuncike ekunembeni kwe-PG kanye nesixazululo sefrikhwensi yokuphuma kwe-inverter.
Uyini umsebenzi we-anti-stall?
Uma isikhathi sokusheshisa esimisiwe sisifushane kakhulu, imvamisa yokuphuma kwe-inverter ingase ishintshe ngokushesha kakhulu kunejubane lemoto (imvamisa ye-angular kagesi), okubangela ukudlula ngokweqile nokukhubeka kwe-inverter, okumisa ukusebenza. Lokhu kubizwa ngokuthi yi-stalling. Ukuvimbela ukumiswa nokugcina ukusebenza kwemoto, i-inverter iqapha okwamanje futhi ilungise imvamisa. Ngesikhathi sokusheshisa, uma okwamanje kuba ngokweqile, izinga lokusheshisa liyancipha. Okufanayo kusebenza ekunciphiseni. Ngokuhlangene, lezi zindlela zenza umsebenzi wokulwa nokuqina.
Kuyini ukubaluleka kwama-inverters avumela izilungiselelo ezihlukene zokusheshisa nezikhathi zokwehlalabo abasebenzisa isilungiselelo esivamile?
Iziguquli ezivumela izilungiselelo ezihlukene zokusheshisa nokunciphisa isikhathi zifanele izinhlelo zokusebenza ezidinga ukusheshisa okufushane nokuncipha kancane kancane, noma kumathuluzi emishini emincane enezidingo eziqinile zesigqi sokukhiqiza. Ngokuphambene, ezinhlelweni zokusebenza ezifana namadrayivu abalandeli lapho izikhathi zokusheshisa nezokuncishiswa zinde zombili, isilungiselelo esivamile sokusheshisa nezikhathi zokunciphisa siyafaneleka.
Kuyini i-regenerative braking?
Lapho imvamisa yomyalo yehliswa ngesikhathi sokusebenza kwemoto, ukuguqulwa kwemoto kumodi ye-asynchronous generator futhi isebenza njengebhuleki. Le nqubo yaziwa ngokuthi i-regenerative (kagesi) braking.
Ingabe amandla amakhulu okubhuleka angafinyelelwa?
Amandla akhiqizwa kabusha enjini agcinwa ku-capacitor yesihlungi se-inverter. Ngenxa yomthamo we-capacitor kanye nemikhawulo yokulinganisa i-voltage, amandla okubhuleka avuselelwayo kuma-inverter enhloso evamile acishe abe ngu-10% kuya ku-20% wetorque elinganiselwe. Ngamayunithi amabhuleki ongawakhetha, lokhu kunganyuswa kuye ku-50% kuya ku-100%.
Iyini imisebenzi yokuvikela ye-inverter?
Imisebenzi yokuvikela ingahlukaniswa kanje:
(1) Ukulungisa ngokuzenzakalela izimo ezingavamile, ezifana nokuvinjelwa kwetafula okudlulele phambili kanye nokuvimbela kabusha kwesitendi sokugcwala kwe-voltage.
(2) Ukuvimba amasiginali okulawula i-PWM ukunika amandla ama-semiconductors lapho ethola okungavamile, okubangela ukuthi injini ime ngokuzenzakalelayo. Izibonelo zifaka ukuvala shaqa kwe-overcurrent, ukuvala shaqa kwe-overvoltage evuselelayo, ukuvikela ukushisisa kwefeni kwe-semiconductor, kanye nokuvikela ukwehluleka kwamandla ngokushesha.
Kungani umsebenzi wokuvikela we-inverter usebenza uma usebenzisa i-clutch yokulayisha okuqhubekayo?
Lapho i-clutch ixhuma umthwalo, i-motor ishintsha ngokushesha isuka ekungalayishweni iye endaweni yokushelela okuphezulu. Umphumela wamanje ophezulu udala ukuthi isiguquli sigudluke ngenxa yokusebenza ngokweqile, nokuma.
Kungani i-inverter ima ngesikhathi sokusebenza lapho ama-motor amakhulu eqala endaweni efanayo?
Ngesikhathi sokuqalisa i-motor, i-inrush current ihambisana namandla emoto, okubangela ukwehla kwe-voltage ohlangothini lwe-stator ye-transformer. Kumamotho amakhulu, lokhu kwehla kwamandla kagesi kungathinta kakhulu ezinye izinto ezixhunywe ku-transformer efanayo. Isiguquli singase sikuhumushe kabi lokhu njengokushoda kwamandla angaphansi noma ukulahleka kwamandla ngokushesha, kucuphe umsebenzi waso wokuvikela (IPE) futhi kubangele ukuthi ime.
Kuyini ukulungiswa kwe-inverter futhi kungani kubalulekile?
Kuma-inverter alawulwa ngedijithali, ngisho noma umyalo wefrikhwensi uyisignali ye-analog, imvamisa yokuphumayo inikezwa ngezinyathelo ezihlukene. Iyunithi encane yalezi zinyathelo ibizwa nge-inverter resolution. Ngokuvamile, ukulungiswa kwe-inverter kusuka ku-0.015Hz kuya ku-0.5Hz. Isibonelo, ngokulungiswa okungu-0.5Hz, amaza angaphezulu kuka-23Hz angalungiswa abe ngu-23.5Hz noma ama-24.0Hz, okuholela ekusebenzeni kwemoto okunezinyathelo. Lokhu kungaba yinkinga ezinhlelweni zokusebenza ezifana nesilawuli sokusonga esiqhubekayo. Ezimweni ezinjalo, ukulungiswa okungaba ngu-0.015Hz kuqinisekisa ukuthi injini enezigxobo ezine, isinyathelo ngasinye sihambisana nokungaphansi kuka-1r/min, sinikeza ukuzivumelanisa nezimo okwanele. Amanye amamodeli we-inverter ahlukanisa phakathi kwesinqumo somyalo nokulungiswa kokuphumayo.
Ingabe ikhona imikhawulo ekuqondeni kokufakwa kwe-inverter?
Idizayini ye-inverter ibheka ukusebenza kahle kokupholisa kwezingxenye zangaphakathi nengemuva. Ukuma kweyunithi kubalulekile ukuze kungene umoya. Kuma-inverter ohlobo lweyunithi afakwe ngephaneli noma afakwe odongeni, ukufakwa okuqondile endaweni ye-longitudinal kuyanconywa.
Kungenzeka yini ukuxhuma injini ngokuqondile ku-inverter-frequency engaguquki ngaphandle kokusebenzisa isiqalisi esithambile?
Ngamafrikhwensi aphansi kakhulu, lokhu kungenzeka. Kodwa-ke, uma ifrikhwensi esethiwe iphezulu, izimo zifana ne-inthanethi eqondile eqala ngamandla wefrikhwensi yensiza. Lokhu kungaholela ekuqaliseni kwemisinga (izikhathi eziyisithupha kuya kweziyisikhombisa zamanje ezilinganiselwe), futhi njengoba i-inverter izohamba ukuze ivikeleke ngokumelene ne-overcurrent, injini izohluleka ukuqala.
Yiziphi izinyathelo okufanele zithathwe lapho usebenzisa injini engaphezu kuka-60Hz?
Uma usebenza ngaphezu kwe-60Hz, cabanga ngalokhu okulandelayo:
(1) Qinisekisa ukuthi okomshini kanye nezinto ezihlobene nazo zingakwazi ukumelana nokusebenza ngalezo zivinini (amandla emishini, umsindo, ukudlidliza, njll.).
(2) Injini ingena ebangeni lokuphuma kwamandla okungaguquki, futhi i-torque yayo yokuphuma kufanele isekele umthwalo womsebenzi (kubalandeli namaphampu, amandla okukhipha i-shaft akhuphuka nge-cube yejubane, ngakho-ke nokwenyuka kwejubane okuncane kudinga ukunakwa).
(3) Ukuzala kungase kuthinteke futhi kufanele kucatshangelwe ngokucophelela.
(4) Ezinjinini ezinomthamo ophakathi nendawo ukuya omkhulu, ikakhulukazi amamotho anezigxobo ezimbili, thintana nomkhiqizi ngaphambi kokusebenza ngaphezu kuka-60Hz.
Ingabe ama-inverters angakwazi ukushayela ama-gear motors?
Kuya ngesakhiwo sesinciphisi kanye nendlela yokuthambisa, kucatshangelwa izinto ezimbalwa. Imvamisa, izakhiwo zamagiya zingabekezelela ubukhulu obungu-70~80Hz. Ngokugcotshwa kukawoyela, ukusebenza okuqhubekayo kwejubane eliphansi kungalimaza amagiya.
Ingabe ama-inverters angakwazi ukushayela izinjini zesigaba esisodwa? Ingabe zingasebenza ngamandla esigaba esisodwa?
Ngokuvamile, akunakwenzeka. Kumamotho esigaba esisodwa anezilawuli zesivinini noma izindlela zokushintsha ukuqala, ukwehlisa isivinini esingaphansi kwendawo yokusebenza kungashisa kakhulu i-axiliary winding. Ezinhlotsheni ze-capacitor-start noma i-capacitor-run, ukuqhuma kwe-capacitor kungase kwenzeke. Ama-inverter ngokuvamile adinga ukunikezwa kwamandla kwezigaba ezintathu, nakuba amanye amamodeli wamandla amancane angasebenza ngamandla esigaba esisodwa.
I-inverter idla amandla angakanani ngokwawo?
Ukusetshenziswa kwamandla kuncike kumodeli ye-inverter, isimo sokusebenza, kanye nemvamisa yokusetshenziswa. Kunzima ukucacisa amanani aqondile. Nokho, ukusebenza kahle kwe-inverter ngaphansi kuka-60Hz cishe kungama-94% kuya ku-96%, okungasetshenziswa ukulinganisa ukulahlekelwa. Kuma-inverter ane-braking evuselelayo eyakhelwe ngaphakathi (isb., uchungechunge lwe-FR-K), ukucabangela ukulahlekelwa kwamabhuleki kwandisa ukusetshenziswa kwamandla, into okufanele uyiqaphele ekwakhiweni kwephaneli yokulawula.
Kungani ukusebenza okuqhubekayo kungenzeki kulo lonke ibanga le-6~60Hz?
Ama-motor amaningi asebenzisa abalandeli bangaphandle ku-shaft noma ama-blades kwindandatho yokuphela kwe-rotor ukupholisa. Isivinini esincishisiwe sinciphisa ukusebenza kahle kokupholisa, kuvimbela injini ukuthi ibekezelele ukukhiqiza ukushisa okufanayo nangesivinini esikhulu. Ukuze ubhekane nalokhu, yehlisa i-torque yokulayisha enesivinini esiphansi, sebenzisa i-inverter yamandla amakhulu kanye nenhlanganisela yemoto, noma sebenzisa injini ekhethekile.
Yiziphi izinyathelo zokuphepha okufanele zithathwe lapho usebenzisa injini enebhuleki?
Isekhethi yokuvusa amabhuleki kufanele inikwe amandla ukusuka ohlangothini lokokufaka lwe-inverter. Uma ibhuleki lisebenza ngenkathi i-inverter ikhipha amandla, i-overcurrent ingase ibangele ukuvala shaqa. Ngakho-ke, qiniseka ukuthi ibhuleki lisebenza kuphela ngemuva kokuthi i-inverter iyekile ukukhipha amandla.
Kungani injini ingaqali lapho isebenzisa isiguquli ukushayela injini enama-capacitor okuthuthukisa isici samandla?
I-Inverter yamanje igeleza ingene kuma-capacitor okuthuthukisa isici samandla. Ukushaja kwamanje kungase kubangele i-overcurrent (OCT) ku-inverter, kuvimbele ukuqalisa. Ukuze uxazulule lokhu, susa ama-capacitor bese usebenzisa injini. Ukuze kuthuthukiswe isici samandla, ukufaka ireactor ye-AC ohlangothini lokokufaka lwe-inverter kusebenza kahle.
Ingakanani impilo ye-inverter?
Yize ama-inverter engamadivayisi amile, aqukethe izinto ezisebenzisekayo njengama-filter capacitor namafeni okupholisa. Ngokulungiswa okuvamile kwalezi zingxenye, i-inverter ingahlala ngaphezu kweminyaka eyishumi.
I-fan yokupholisa iqondiswe kanjani ku-inverter, futhi kwenzekani uma ihluleka?
Amanye ama-inverter amancane angenawo abalandeli bokupholisa. Kumamodeli anabalandeli, ukugeleza komoya kuvame ukusuka phansi kuye phezulu. Lapho ufaka i-inverter, gwema ukubeka okokusebenza okuvimbela ukungena komoya kanye ne-exhaust ngaphezulu nangaphansi kweyunithi. Ungazibeki izingxenye ezizwela ukushisa ngaphezu kwesiguquli. Ukuhluleka kwabalandeli kuvikelwe kukho ngokuthola ukumisa kwabalandeli noma ukushisisa ngokweqile kwefeni epholile.
Unganqunywa kanjani ubude bempilo yama-capacitor okuhlunga?
Ama-capacitor okuhlunga, asetshenziswa njengama-capacitor, kancane kancane alahlekelwa amandla awo e-electrostatic ngokuhamba kwesikhathi. Kala umthamo we-electrostatic njalo, futhi ucabangele ubude besikhathi be-capacitor buphelelwe yisikhathi lapho ifinyelela ku-85% womthamo olinganiselwe.
Ingabe ikhona imikhawulo ekuqondeni kokufakwa kwe-inverter?
Ama-inverters ngokuvamile agcinwa ngaphakathi kwamaphaneli. Kodwa-ke, amaphaneli avaleke ngokuphelele makhulu, adla indawo futhi ayabiza. Izinyathelo zokunciphisa zihlanganisa:
(1) Ukuklama amaphaneli okupholisa okudingekayo kwempahla yangempela.
(2) Ukwandisa indawo yokupholisa kusetshenziswa osinki bokushisa be-aluminium, amaphiko, nezinto zokupholisa.
(3) Ukusebenzisa amapayipi okushisa.
Ukwengeza, amamodeli e-inverter anezinhlangothi zangemuva eziveziwe athuthukisiwe.
Umthamo we-inverter kufanele ukhethwe kanjani ukukhulisa isivinini sebhande lokuhambisa libe ngu-80Hz?
Ukusetshenziswa kwamandla kwamabhande okuthutha kuhambisana nesivinini. Ukuze usebenze ku-80Hz, kokubili i-inverter namandla emoto kufanele kukhuliswe ngokulingana ukuya ku-80Hz/50Hz, okungukuthi, ukukhuphuka kwamandla angama-60%.
Izinyathelo zokuqapha ngesikhathi sokulungiswa nokuhlolwa:
(1) Ngemva kokucisha amandla okokufaka, linda okungenani imizuzu emi-5 ngaphambi kokuqala ukuhlola (qinisekisa ukuthi i-LED yenkomba yokushaja icishiwe) ukuze ugweme ukushaqeka kukagesi.
(2) Ukunakekela, ukuhlolwa, kanye nokushintshwa kwengxenye kufanele kwenziwe ngabasebenzi abaqeqeshiwe. Susa zonke izinto zensimbi (amawashi, amasongo, njll.) ngaphambi kokuqala umsebenzi futhi usebenzise amathuluzi afakiwe.
(3) Ungaguquli i-inverter ngokuzenzakalelayo ukuvimbela ukushaqeka kukagesi kanye nokulimala komkhiqizo.
(4) Ngaphambi kokusevisa i-inverter, qinisekisa i-voltage yokufaka. Ukuxhuma ugesi we-380V ku-inverter ye-220V-class kungabangela umonakalo (i-capacitor, i-varistor, ukuqhuma kwe-module, njll.).
Iziguquli, ezakhiwe ngokuyinhloko izakhi ze-semiconductor, zidinga ukuhlolwa kwansuku zonke ukuze kuqashwe izindawo zokusebenza ezimbi, njengezinga lokushisa, umswakama, uthuli, nokudlidliza, nokuvikela amaphutha avela ngenxa yemikhawulo yesikhathi sokuphila sengxenye.
Izinto zokuhlola:
(1) Ukuhlolwa kwansuku zonke: Qinisekisa ukuthi i-inverter isebenza njengoba kudingeka. Sebenzisa i-voltmeter ukuze uhlole ama-voltage okufakwayo nokuphumayo ngenkathi i-inverter isebenza.
(2) Ukuhlola ngezikhathi ezithile: Hlola zonke izindawo ezifinyeleleka kuphela lapho i-inverter ivaliwe.
(3) Ukushintshwa kwengxenye: Ukuphila kwengxenye kuthonywa kakhulu izimo zokufakwa.