Umphakeli wedivayisi yempendulo yamandla we-frequency converter uyakukhumbuza ukuthi ngo-1967, isiguquli sefrikhwensi sathuthukiswa ngempumelelo futhi safakwa ekusebenzeni kwezentengiso. Ngemuva kweminyaka engaphezu kwengu-40 yentuthuko, ukulawulwa kwesivinini esishintshashintshayo samamotho e-AC sekuyindlela enkulu yokonga ugesi, ukuthuthukisa izinqubo zokukhiqiza, ukuthuthukisa ikhwalithi yomkhiqizo, nokuthuthukisa izindawo zokusebenza. Amadrayivu efrikhwensi aguquguqukayo athandwa kakhulu abasebenzisi ngokusebenza kahle kwawo okuphezulu, isici samandla aphezulu, nokulawulwa kwesivinini okuhle kakhulu nokusebenza kwamabhuleki. Badlala izindima ezintathu ezibalulekile emikhakheni eminingi:
(1) Umsebenzi wokuqalisa othambile. Uma i-motor iqalwe kanzima, i-current yokuqala eqondile ivame izikhathi ezingu-3-5 zamanje ezilinganiselwe. Ukwanda okungazelelwe kwamandla akukhulisi nje kuphela ubunzima bokuklama nokukhiqizwa kwezimoto, kodwa futhi kunomthelela omkhulu kumthamo wesistimu yegridi yamandla, izikhungo zokudlulisela nokusabalalisa, futhi kubangela umonakalo omkhulu kumishini efana nama-baffles nama-valve. Umsebenzi wesiguquli sefrikhwensi ukuguqula imvamisa kanye nobukhulu bamandla kagesi we-AC, ngaleyo ndlela kuguqule isikhathi senkambu yayo kazibuthe enyakazayo futhi kuzuzwe ukulawula okushelelayo kwejubane lemoto. Lokhu kubangela ukuthi isiqalo semoto siqale ku-zero futhi sikhuphuke kancane kancane, ngenani eliphezulu elingeqi inani lamanje elilinganiselwe, linciphisa umthelela kugridi yamandla kanye nezidingo zomthamo wokuphakelwa kwamandla, nokwelula impilo yesevisi yemishini.
(2) Lungiselela ukusebenza kwemoto. Ezinhlelweni ezifana namafeni kanye ne-central air conditioning, izindlela zokuphakelwa kwamanzi zendabuko zitholwa ngezinsiza ezifana nemibhoshongo yamanzi, amathangi amanzi asezingeni eliphezulu, namathangi okucindezela. Ukucindezela kwamanzi endaweni yokuphuma kuvame ukuthintwa yizici ezifana nokuphakama nomthamo wokugcina ithangi lamanzi, futhi ngokuvamile liyashintsha. Akulula ukufeza ingcindezi eqhubekayo ngempela. Ngaphezu kwalokho, indlela yendabuko yokulawula isivinini yemishini efana namafeni namaphampu incike ekulungiseni ukuvulwa kwama-baffles nama-valve okungena nokuphumayo ukuze kulawuleke umthamo wokuphakelwa komoya kanye namanzi. Uma amandla okufaka ephezulu kakhulu, inani elikhulu lamandla liyasetshenziswa ekuvimbeni i-baffle ne-valve, okuholela ekumosheni. Lokhu kufana nabantu abathutha izitini ezeqa kakhulu isidingo sezakhiwo eziphakeme ngaphandle kokubala ngokunembile inani lomsebenzi, okuphumela ekumoshweni kwabasebenzi namahora okusebenza. Namuhla, onjiniyela bahlanganisa iziguquli zemvamisa, izilawuli ze-PID, izilawuli ezincane, ama-PLC, njll. ukuze bakhe uhlelo lokulawula olungalawula ukuphuma kwamaphampu amanzi futhi lunciphise umsebenzi ongasebenzi. Abantu badinga kuphela ukusetha ukucindezela kokuphuma kwepayipi elikhulu lesiteshi sephampu, baqhathanise inani elibekiwe nenani langempela lempendulo, futhi ngemva kokuba umehluko usucutshungulwe ngokubala, uhlelo luzokhipha imiyalelo yokulawula ukulawula inombolo kanye nesivinini samamotho epompo yamanzi asebenzayo, ngaleyo ndlela kufinyelele umgomo wokucindezela okuqhubekayo epayipini elikhulu lokuphakela amanzi. Uma kuqhathaniswa namavalvu alawulayo okulawula umfutho wamanzi, lolu hlelo lunciphisa ukumelana namapayipi, lunciphisa kakhulu ukusebenza kahle kokulahlekelwa kokucasha, futhi aludingi ukusebenza okuvamile okwenziwa ngesandla, kunciphisa umfutho wabasebenzi. Ku-air conditioning emaphakathi, ifeni nezinye izinhlelo, iziguquli zefrikhwensi nazo zenza kahle. I-China Inverter Network iveze ukuthi isimo somoya esimaphakathi siklanywe ngokususelwa kumthamo omkhulu wokupholisa odingekayo (ukushisa) kanye no-10-20%, osebenzisa amandla aphezulu namandla amakhulu okonga amandla. Ngokusebenzisa i-frequency converter ukuze ulawule isivinini namandla okusebenza kahle kwe-central air conditioning refrigeration compressors, amaphampu esiqandisi, amaphampu okupholisa, amafeni ombhoshongo wokupholisa, ukubuyisela imishini yomoya, njll., kungenzeka ukugwema ukugeleza nokucindezela ngokweqile, ukuqinisekisa ukusebenza okuvamile nokusebenza kahle kohlelo, futhi wonge u-20% kuya ku-50% kagesi. Isibonelo, ngesikhathi kwakhiwa umhubhe womfula iShanghai Yangtze, abakhi badinga ukuqinisekisa ukuthi kungena umoya omuhle ngaphakathi emhubheni, ongamakhilomitha angaba ngu-8.9 ubude futhi unobubanzi bangaphakathi obungamamitha angu-13.7. Ngale njongo, le phrojekthi isebenzisa isiguquli semvamisa ukusetha ngokuqondile isivinini semoto ngokusekelwe kumthamo womoya, ukulungisa kahle umthamo womoya, nokwandisa ukusetshenziswa kwezikhungo zikagesi, futhi kuzuzwe ukonga amandla okungama-20% -45%.
(3) Inomsebenzi wokuvikela wesistimu. Ngemva kokuthola izimo ezingavamile ohlelweni, isiguquli sefrikhwensi singalungisa ngokuzenzakalelayo isenzo noma sivimbe isignali yokulawula ye-PWM yedivayisi ye-semiconductor yamandla, okubangele ukuthi injini ime ngokuzenzakalelayo, njengokuvimbela i-stall overcurrent, ukunqanyulwa kwe-overcurrent, ukushisa okweqile kwefeni ye-semiconductor, kanye nokuvikelwa kokuphuma kwamandla ngokushesha.