Poyerekeza ndima asynchronous motors, maginito okhazikikama synchronous motorskukhala ndi ubwino woonekeratu. Amakhala ndi mphamvu zambiri, mphamvu zambiri, zizindikiro zogwira ntchito bwino, kukula kochepa, kulemera kochepa, kutentha kwapansi, kukwera kwakukulu kwa luso, komanso kupititsa patsogolo luso la gridi yamagetsi. zinthu, kugwiritsa ntchito mphamvu ya gululi yamagetsi yomwe ilipo, kupulumutsa ndalama mu gridi yamagetsi, komanso kuthetsa bwino zochitika za "kavalo wamkulu ndi ngolo yaying'ono" pazida zamagetsi.
01.Kuchita bwino ndi mphamvu
Pamene injini ya asynchronous ikugwira ntchito, kuzungulira kwa rotor kumatenga mbali ya mphamvu yamagetsi kuchokera ku gridi yamagetsi kuti ikhale yosangalatsa, yomwe imawononga mphamvu ya gridi yamagetsi. Gawo ili la mphamvu yamagetsi pamapeto pake limadyedwa mukuyenda kozungulira ngati kutentha. Kutayika kumeneku kumakhala pafupifupi 20-30% ya kutayika kwathunthu kwa mota, zomwe zimachepetsa mphamvu yagalimoto. The rotor excitation panopa ndi n'kukhala stator mapiringidzo monga inductive panopa, zomwe zimapanga panopa kulowa stator makhotedwe lag kuseri kwa mphamvu gululi voteji ndi ngodya, chifukwa mu kuchepa mphamvu chinthu galimoto. Komanso, kuchokera dzuwa ndi mphamvu factor curves wamaginito okhazikika ma synchronous motorsndi ma asynchronous motors (Chithunzi 1), zikhoza kuwoneka kuti pamene kuchuluka kwa katundu (= P2 / Pn) ndi
Pambuyo maginito okhazikika ophatikizidwa mu rotor ya okhazikika maginito synchronous galimoto, maginito okhazikika ntchito kukhazikitsa rotor maginito munda. Panthawi yogwira ntchito bwino, rotor ndi stator magnetic field zimayenda mofanana, palibe mphamvu zowonongeka mu rotor, ndipo palibe kutayika kwa rotor. Izi zokha zitha kuwonjezera mphamvu zamagalimoto ndi 4% ~ 50%. Popeza palibe chisangalalo chapano chomwe chimapangidwa mu hydromagnetic motor rotor, mafunde a stator akhoza kukhala katundu wokhazikika, kupangitsa mphamvu yamagetsi yamagetsi pafupifupi 1. Kuchokera pakuchita bwino komanso mphamvu zamagetsi zokhotakhota za maginito okhazikika a synchronous motor ndi asynchronous motor (Chithunzi 1), zitha kuwoneka kuti pamene kuchuluka kwa katundu wa maginito okhazikika 20%, mphamvu yogwiritsira ntchito sisintha, mphamvu yake yogwira ntchito sisintha. mphamvu ndi> 80%.
02. Kuyambitsa nduna
Pamene injini ya asynchronous imayambika, galimotoyo imayenera kukhala ndi torque yokwanira yoyambira, koma poyambira siili yayikulu kwambiri, kuti tipewe kutsika kwamagetsi ochulukirapo mu gridi yamagetsi ndikusokoneza magwiridwe antchito amtundu wina wamagetsi ena ndi zida zamagetsi zolumikizidwa ndi gridi yamagetsi. Kuphatikiza apo, pomwe choyambira chimakhala chachikulu kwambiri, injiniyo yokha imakhudzidwa ndi mphamvu yamagetsi yochulukirapo. Ngati ayambika pafupipafupi, ndiye kuti palinso ngozi yowotcha mopiringa. Chifukwa chake, mapangidwe oyambira a ma asynchronous motors nthawi zambiri amakumana ndi vuto.
Maginito okhazikika a ma synchronous motors nthawi zambiri amagwiritsa ntchito poyambira. Popeza mapindikidwe ozungulira sikugwira ntchito pamene okhazikika maginito synchronous galimoto ikugwira ntchito bwinobwino, popanga okhazikika maginito galimoto, wozungulira wokhotakhota angathe kukwaniritsa zofunikira za mkulu kuyambira makokedwe Mwachitsanzo, makokedwe oyambira angapo chikuwonjezeka kuchokera 1.8 nthawi asynchronous galimoto kwa nthawi 2.5, kapena zazikulu, amene bwino amathetsa chodabwitsa" kavalo waing'ono mphamvu" kukoka kavalo.
3. Kutentha kwa ntchito
Popeza mapiringidzo a rotor ali ndi kuyenda kwaposachedwa pamene injini ya asynchronous ikugwira ntchito, ndipo izi zimadyedwa ngati mphamvu ya kutentha, kutentha kwakukulu kumapangidwa mu mafunde a rotor, zomwe zidzawonjezera kutentha kwa galimoto ndikukhudza moyo wautumiki wa galimoto. Chifukwa chakuchita bwino kwambiri kwa maginito okhazikika a maginito, palibe kutayika kwa ma rotator, ndipo pamakhala pang'ono kapena pafupifupi palibenso mphamvu yamagetsi pamayendedwe a stator, zomwe zimapangitsa kutentha kwa injini kutsika ndikuwonjezera moyo wautumiki wagalimoto. 4. Zokhudza kugwira ntchito kwa gridi yamagetsi
Chifukwa cha otsika mphamvu chinthu cha galimoto asynchronous, galimoto zimatenga kuchuluka kwa zotakasika panopa ku gululi mphamvu, chifukwa mu kuchuluka kwa zotakasika panopa mu gululi mphamvu, thiransifoma zida ndi mphamvu m'badwo zida, amenenso amachepetsa khalidwe gululi mphamvu ndi kumawonjezera katundu pa gululi mphamvu, thiransifoma zida ndi zida mphamvu m'badwo. Panthawi imodzimodziyo, mphamvu yowonongeka imagwiritsa ntchito mbali ya mphamvu yamagetsi mu gridi yamagetsi, zipangizo za transformer ndi zipangizo zopangira magetsi, zomwe zimapangitsa kuti magetsi azikhala ochepa komanso amakhudza kugwiritsa ntchito mphamvu zamagetsi. Komanso chifukwa cha mphamvu yochepa ya injini ya asynchronous, kuti ikwaniritse zofunikira za mphamvu zamagetsi, m'pofunika kuti mutenge mphamvu zambiri zamagetsi kuchokera ku gridi yamagetsi, kuwonjezera kutayika kwa mphamvu yamagetsi ndikuwonjezera katundu pa gridi yamagetsi.
Palibe kulowetsedwa kwaposachedwa mu maginito okhazikika a motor rotor, mota ili ndi mphamvu yayikulu, yomwe imapangitsa kuti gridi yamagetsi ikhale yabwino ndikuchotsa kufunikira koyika compensator mu gridi yamagetsi. Nthawi yomweyo, chifukwa champhamvu kwambiri yamagetsi okhazikika amagetsi, mphamvu yamagetsi imapulumutsidwanso.