Zifukwa za kusokonezeka kwa ma harmonics

Mawu akuti "harmonics" ndi mawu otakata ndipo amagwiritsidwa ntchito m'mafakitale osiyanasiyana.Tsoka ilo, mavuto ena amagetsi amanenedwa molakwika pa ma harmonics.Ma harmonics awa sayenera kusokonezedwa ndi kusokoneza kwa ma radio frequency (RFI), komwe kumachitika pama frequency apamwamba kwambiri kuposa ma harmonics.Ma harmonics amagetsi ndi otsika kwambiri, motero samasokoneza ma siginecha a LAN opanda zingwe, ma foni am'manja, ma wayilesi a FM kapena AM, kapena zida zilizonse zomwe zimakhudzidwa makamaka ndi phokoso lambiri.

Ma Harmonics amayamba chifukwa cha katundu wopanda mzere.Katundu wopanda mzere samakoka sinusoid yamakono kuchokera pazomwe zimagwiritsidwa ntchito.Zitsanzo za katundu wopanda mzere ndi ma VFD, ma EC motors, kuyatsa kwa LED, makina ojambulira zithunzi, makompyuta, magetsi osasokoneza, ma TV, ndi zamagetsi zambiri zomwe zimaphatikizapo magetsi.Zomwe zimachititsa kuti ma harmonics m'nyumbayi zikhale zopanda mzere, mphamvu za magawo atatu, ndipo mphamvu zambiri zimakhalapo, mafunde amtundu wa harmonic pa intaneti adzakhala aakulu.Gawo lotsatira likuwunikanso zamagetsi

zizindikiro za VFD.Ichi ndi kufotokozera chitsanzo cha katundu wopanda mzere.Mapangidwe odziwika kwambiri a VFD amagwira ntchito potenga voteji ya magawo atatu a AC ndikuwongolera voteji kudzera mu diode.Izi zimatembenuza magetsi kukhala magetsi osalala a DC kudutsa banki ya capacitor.VFD kenako imatembenuza DC kukhala mawonekedwe a AC a mota kuti aziwongolera liwiro, torque ndi komwe akupita.Zomwe sizinali za mzere zimapangidwa ndi kukonzanso kwa magawo atatu a AC-to-DC.Mavuto obwera chifukwa cha kusokoneza kwa harmonic Kuchuluka kwa kusokonezeka kwa ma harmonic mu malo kungayambitse mavuto osiyanasiyana.Ena mwa mavuto omwe angakumane nawo ndi awa:

• Kulephera msanga ndi kuchepetsa moyo wa zipangizo nthawi zambiri kukakhala kutentha kwambiri, monga: - Kutentha kwa ma transfoma, zingwe, ma circuit breakers ndi fuse.

- Kutenthedwa kwa injini zomwe zimayendetsedwa molunjika pamzere

• Maulendo osokonekera a zophulika ndi ma fuse chifukwa cha kutentha kowonjezera ndi kukweza kwa harmonic

• Kusakhazikika kwa majenereta osunga zobwezeretsera

• Kusakhazikika kwamagetsi amagetsi omwe amafunikira mawonekedwe oyera a sinusoidal AC

• Magetsi akuthwanima

Pali njira zambiri zochepetsera ma harmonics ndipo palibe yankho la "mulingo umodzi wokwanira" wonse.Noker Electric ndi akatswiri ogulitsayogwira harmonic fyulutandistatic var jenereta.Ngati funso lililonse lokhudza harmonic, chonde lemberani Noker Electric, tidzakupatsani yankho kwa inu.