Evumelanisiwe motor - ngebuhle nebubi

Inqubo esetshenziswa kabanzi umshini ezifana nenjini zokuvumelanisa sitholwa embonini lapho kukhona ukugijima kagesi ngesivinini njalo. Ngokwesibonelo, compressors ne izinjini ezinamandla, iphampa actuators. Futhi, nenjini zokuvumelanisa kuyinto ebalulekile okuyingxenye, futhi eziningi zikagesi zasendlini, ezifana kuba amahora.

Umgomo we operation walo mshini ulula. Ukuxhumana kwe-ligijima amandla kazibuthe armature ezivezwa kushintshana zamanje amasimu kazibuthe ku izigxobo inductor elakhiwe zamanje njalo isisekelo isimiso yokusebenza idivayisi ezifana zokuvumelanisa motor kagesi. Ngokuvamile, i-inductor esisogwini Rotor, kanye ihange - the stator. izinjini Inamandla njengoba izingongolo usebenzisa electromagnets. Kodwa kukhona uhlobo ephansi amandla - nenjini zokuvumelanisa nge odonsa unomphela. Umehluko omkhulu phakathi imishini zokuvumelanisa iphinde indlela - stator futhi Rotor design.

Ukuze luhambe ngokushesha uhlelo motor kuze kube ijubane ezingeni ukalwe ngokuvamile sebenzisa imodi indlela. Kulesi mode, inductor emazombezombe sesiwancamulile. Ngemva injini iya ijubane wazikala le rectifier onika DC inductor. Kuphela ijubane okuzisholo motor zokuvumelanisa ingasebenza ngokuzimela.

nenjini okunjalo kunezinzuzo eziningi. He is umyalelo ezidlula eziyinkimbinkimbi umshini indlela, kodwa lokhu kulinganiswe eziningi eziwusizo. Omunye izinzuzo main - ikhono layo ukuze isebenze ngaphandle ukusetshenziswa kwamandla esisheshayo noma umthelela. Ngakho amandla injini isici ilingana indlela eya ebunyeni. Ngaphansi kwalezi zimo, a zokuvumelanisa AC motor siku asebenzayo umthwalo inethiwekhi ingxenye. A side effect kuyinto ukunqinda motor (i motor lokungeniswa, le stator emazombezombe ibalwa kanye imisinga asebenzayo futhi esisheshayo ku). Nokho, motor zokuvumelanisa zingakwazi ukukhiqiza amandla kwangempela futhi esisheshayo, ezisebenza overexcitation imodi.

Motor zokuvumelanisa lungaphezu akanandaba iyehla iyenyuka bese voltage lehla inethiwekhi. Ezinjalo njengoba izimoto kagesi abe ukumelana ngaphezulu ukuze overloads. kungenzeka ukwandisa amakhono sindisa yenjini ngokwandisa zamanje excitation. Inzuzo nge umshini zokuvumelanisa kubuye njalo okuzisholo ijubane ukujikeleza ngasiphi umthwalo (ngaphandle sindisa).

Ngokungangabazeki, umshini ezifana nenjini zokuvumelanisa unobuthakathaka lalo. Zihlotshaniswa eqolo futhi operation eziyinkimbinkimbi. Inkinga eyinhloko excitation we motor kanye nekungeniswa kwawo ku synchronism. Okwamanje kutholakala ukusabalala thyristor exciters, okuyinto abe kakhulu kunalokhu kahle, kunalokho yokuba amagciwane kagesi. Nokho, izindleko zabo iphezulu kakhulu. Ukusebenzisa inkinobho thyristor ongaxazulula izinkinga eziningi: elilungile excitation womthetho okhona ukusekela cosine Phi ukubaluleka njalo, ukulawula voltage phezu isondo, ukulawula imisinga stator futhi Rotor ikumodi eziphuthumayo, futhi uma sindisa.