Kugwiritsa Ntchito Kwapakati pa Voltage Frequency Converter Mu Mphamvu Yopulumutsa Kusintha Kwa Ventilator

Mapiritsi anthawi zonse a axial flow fan akuwonetsedwa pachithunzichi:

Mphepete mwachitsulo imakhala ndi hump, monga malo ogwirira ntchito kumalo oyenerera a hump, fani yogwira ntchito imakhala yokhazikika;Ngati malo ogwirira ntchito ali kumanzere kwa hump, momwe ntchito ya faniyo imagwirira ntchito imakhala yovuta kuti ikhale yokhazikika.Panthawi imeneyi, kuthamanga kwa mphepo ndi kuyenda kumasinthasintha.Pamene malo ogwirira ntchito akusunthira kumunsi kumanzere, kuthamanga ndi kuthamanga kwa mphepo kumakhala ndi kugunda kwakukulu, ndipo kumapangitsa kuti fan yonse iwonongeke.Fanizo la fan likhoza kuonongeka ndi opaleshoni, kotero faniyo siyiloledwa kugwira ntchito popanga opaleshoni.Pofuna kupewa kuphulika kwa fani pamlingo wothamanga pang'ono, kutembenuka kwafupipafupi kutembenuka kwa fani ndiko kusankha koyamba, ndipo pamene kusintha kwachangu sikudutsa 20%, mphamvuyo sikusintha, kugwiritsa ntchito pafupipafupi. kutembenuka liwiro malamulo angapangitse zimakupiza mu gawo laling'ono otaya ogwira ntchito bwino, osati kuti zimakupiza kuchulukana, komanso kukulitsa ntchito ogwira ntchito osiyanasiyana zimakupiza.

Mpweya wabwino kwambiri umayendetsedwa ndi ma frequency amphamvu, ndipo voliyumu ya mpweya wabwino nthawi zambiri imasinthidwa posintha Angle ya kalozera vane ndi mbale yoyimba pakugwira ntchito.Choncho, mphamvu ya mpweya wabwino imakhala yochepa, zomwe zimapangitsa kuti mphamvu ziwonongeke ndikuwonjezera mtengo wopangira.Kuonjezera apo, chifukwa cha malire a mapangidwe a mpweya waukulu, mpweya wabwino wakhala ukuyenda pansi pa katundu wopepuka kwa nthawi yaitali, ndipo kutaya mphamvu kumakhala kodziwika.

Pamene fani yayikulu imagwiritsa ntchito reactance kuyambira, nthawi yoyambira ndi yayitali ndipo poyambira pano ndi yayikulu, yomwe imakhala ndi chiwopsezo chachikulu pakutsekereza kwa injini, ndipo imawotcha mota pazovuta kwambiri.Chochitika cha uniaxial torque chamagetsi okwera kwambiri poyambira chimapangitsa kuti faniyo ikhale ndi kugwedezeka kwakukulu kwamakina, komwe kumakhudza kwambiri moyo wautumiki wa mota, zowomba ndi makina ena.

Poganizira zifukwa zomwe zili pamwambazi, ndi bwino kugwiritsa ntchitopafupipafupitembenuzanirkusintha mpweya wa mpweya waukulu wa mpweya wabwino.

Mphamvu yapamwambapafupipafupichosinthira opangidwa ndi Noker Electric amatenga liwiro lalikulu la DSP ngati chiwongolero chowongolera, samatengera ukadaulo wowongolera ma velocity ndi ukadaulo wama multilevel amagetsi.Ndi ya high - high voltage source type frequency converter, yomwe index ya harmonic ndiyotsika kuposa IEE519-1992 harmonic national standard, yokhala ndi mphamvu yowonjezera yowonjezera komanso khalidwe labwino la mafunde.Palibe chifukwa chogwiritsa ntchito zosefera za harmonic, chipangizo cholipirira mphamvu ndi zosefera;Palibe ma harmonic omwe amayamba chifukwa cha kutentha kowonjezera kwa injini ndi torque ripple, phokoso, kutulutsa dv/dt, voliyumu wamba wamba ndi zovuta zina, mutha kugwiritsa ntchito mota wamba asynchronous.

Malinga ndi momwe zilili pa malo ogwiritsira ntchito, kabati yodutsa imatengera chiwembu cha thirakitala imodzi yosinthira pafupipafupi kutembenuka kodziwikiratu.Monga momwe chithunzichi chili pansipa.Mu kabati yolambalala pali ma switch awiri apamwamba odzipatula komanso ma vacuum contactors awiri.Kuonetsetsa kuti palibe mphamvu yomwe imatumizidwa kumapeto kwa chosinthira, KM3 ndi KM4 zimalumikizidwa ndi magetsi.Pamene K1, K3, KM1 ndi KM3 zatsekedwa ndipo KM4 imachotsedwa, galimotoyo imathamanga ndi kutembenuka kwafupipafupi;Pamene KM1 ndi KM3 achotsedwa ndipo KM4 yatsekedwa, ma frequency amphamvu a mota amathamanga.Panthawiyi, otembenuza pafupipafupi amasiyanitsidwa ndi magetsi apamwamba, omwe ndi abwino kukonzanso, kukonza ndi kukonza zolakwika.

Kabati yodutsa iyenera kukhala yolumikizidwa ndi cholumikizira chamagetsi chapamwamba kwambiri cha DL.DL ikatsekedwa, musagwiritse ntchito inverter linanena bungwe lodzipatula lophimba kupewa arc-chikoka ndi kuonetsetsa chitetezo cha ogwira ntchito ndi zipangizo.

TheKuthamanga kwapakati pa VoltageAmayendetsa yakhala ikuyenda mosasunthika kuyambira pomwe idayamba kugwira ntchito, ma frequency otulutsa, ma voliyumu ndi apano ndi okhazikika, fani imathamanga mokhazikika, mphamvu yoyezera mbali ya netiweki ya frequency converter ndi 0.976, magwiridwe antchito ndi apamwamba kuposa 96%, mphamvu okwana maukonde mbali panopa harmonic ndi zosakwana 3%, ndi linanena bungwe panopa harmonic ndi zosakwana 4% pamene katundu zonse.Wowombera amathamanga pa liwiro lotsika kuposa liwiro lovotera, lomwe silimangopulumutsa mphamvu, limachepetsa mtengo wokonza, komanso limachepetsa phokoso la fan, komanso limalandira zotsatira zabwino zogwirira ntchito komanso phindu lachuma.