Isikhumbuzi esivela kumnikezeli wamadivayisi wempendulo yamandla weziguquli zefrikhwensi: Uyini umgomo wokonga amandla weziguquli zefrikhwensi? Eqinisweni, ukongiwa kwamandla okuguquguquka kwemvamisa akuphelele. Bona ngokwabo badla ugesi futhi babe nokulahlekelwa. Inhloso eyinhloko yeziguquli zemvamisa ukulawula isivinini samamotho asynchronous. Ezinye izisetshenziswa zisebenzisa ugesi omningi uma injini inkulu, kodwa isici samandla sincane, okusho ukuthi ugesi uchithwa injini. Ukusebenzisa ama-frequency converters kungathuthukisa isici samandla, ngakho-ke ukongiwa kwamandla kungafinyelelwa.
Imvamisa eguquguqukayo yokonga amandla:
Ukuze kuqinisekiswe ukwethembeka kokukhiqizwa kwethu, imishini ehlukahlukene yokukhiqiza izoba nokuguquguquka okuthile ekuklameni amandla. Injini ayikwazi ukusebenza ngokugcwala okuphelele. Ngaphezu kokuhlangabezana nezidingo zokushayela kwamandla, amandla angaphezu kwamandla akhulisa ukusetshenziswa kwamandla asebenzayo, okuholela ekumoshweni kwamandla kagesi. Lapho ukucindezela kuphezulu, isivinini sokusebenza se-motor singancishiswa. Ingakwazi futhi ukonga amandla ngaphansi kwengcindezi engapheli. Lapho ijubane lemoto lishintsha lisuka ku-N1 liye ku-N2, ukuguqulwa kwamandla e-motor shaft (P) kanje: P2/P1=(N2/N1) 3, okubonisa ukuthi ukwehlisa isivinini semoto kungafinyelela imiphumela ebalulekile yokonga amandla.
Ukulungisa okunamandla ukonga amandla:
Zivumelanisa ngokushesha ukuze ulayishe izinguquko futhi unikeze amandla kagesi aphumelela kakhulu. I-converter ye-frequency inomsebenzi wokulinganisa nokulawula okukhipha izikhathi ezingu-5000 ngomzuzwana ku-software, okuqinisekisa ukuthi ukuphuma kwe-motor kuhlale kusebenza kahle.
Umsebenzi wokuguqula imvamisa ngokwakho wonga amandla:
Ijika le-V/F lingalungiswa ngokuzenzakalelayo ngomsebenzi wokuguqula imvamisa: ngenkathi kuqinisekiswa i-torque ephumayo yemoto, ijika le-V/F lingalungiswa ngokuzenzakalelayo. I-torque ephumayo ye-motor iyancipha, futhi okokufaka kwamanje kuyancipha, kufinyelele isimo sokulondoloza amandla.
Ukonga amandla okuqalisa okuguquguqukayo:
Uma i-motor iqalwa nge-voltage egcwele, ngenxa ye-torque yokuqala ye-motor, idinga ukumunca izikhathi ezingu-7 zamanje ezilinganiselwe ze-motor kusuka kugridi yamandla, okuholela ekuqaliseni okukhulu kwamanje kanye nokushintshashintsha kwamandla kagesi kugridi yamandla. Kusenomonakalo omningi, okuzokwandisa ukulahleka nokulimala komugqa. Ngemva kokuqala okuthambile, isiqalo samanje singancishiswa sisuka ku-0 siye kumanje esilinganiselwe senjini, sinciphise umthelela wokuqala wamanje kugridi yamandla, ukonga izindleko zikagesi, nokunciphisa inertia yokuqala inertia ukuze kuqinisekiswe imishini ye-inertia ephezulu futhi andise ukusetshenziswa kwayo.
Thuthukisa isici samandla futhi wonge amandla:
I-motor ikhiqiza i-torque ngokusebenzisa isenzo se-electromagnetic of stator winding kanye nama-rotor winding. I-winding inomphumela we-inductive. Kugridi yamandla, izici ze-impedance ziyaguquguquka, futhi izinjini zimunca inani elikhulu lamandla asebenzayo ngesikhathi sokusebenza, okuholela kusici samandla aphansi. Ngemva kokwamukela isilawuli sesivinini esishintshashintshayo sokonga amandla, ukusebenza kwaso kushintshelwe ku-AC-DC-AC. Ngemva kokulungiswa nokuhlunga, izici zomthwalo zishintshile. Isiguquli semvamisa sinezici zokuthikameza ngokumelene negridi yamandla, isici samandla aphezulu, futhi sinciphisa ukulahleka kwamandla asebenzayo.