Kugwiritsa Ntchito Mwanzeru kwa Inverter mu Explosion-Proof Motor

Kuti muzindikire kuthamanga kwa injini yamoto, ukadaulo wa inverter umagwiritsidwa ntchito kwambiri pamagalimoto osaphulika.Monga chipangizo, inverter imatha kusintha mphamvu yamagetsi pafupipafupi (50Hz kapena 60Hz) kukhala ma frequency angapo amagetsi a AC, kuti akwaniritse kuthamanga kwa injini.Chipangizocho chimaphatikizapo kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake;Rectifier circuit for converting current to direct current;Dera lapakati la DC limagwiritsidwa ntchito kusalaza ndi kusefa zomwe zimachokera ku dera lokonzanso;Chigawo cha inverter, chomwe chimagwiritsidwa ntchito kutembenuza magetsi achindunji kukhala alternating current.M'malo ena osinthira pafupipafupi omwe amafunika kuchita zambiri, ndikofunikira kukhala ndi CPU yowerengera ma torque ndi dera lofananira.Posintha ma frequency amagetsi a stator winding of motor, variable frequency speed regulation amatha kuzindikira cholinga chowongolera liwiro.

Inverter Malinga ndi njira zosiyanasiyana gulu, akhoza kugawidwa mu voteji mtundu inverter ndi panopa mtundu inverter, PAM ulamuliro inverter, PWM ulamuliro inverter ndi mkulu chonyamulira pafupipafupi PWM kulamulira inverter, V / f kulamulira inverter, kuzembera pafupipafupi kulamulira inverter ndi vekitala kulamulira inverter, General inverter, high performance special inverter, high frequency inverter, single phase inverter and three phase inverter, etc.

Mu converter pafupipafupi, VVVF amatanthauza kusintha voteji ndi pafupipafupi, pamene CVCF amatanthauza voteji mosalekeza ndi pafupipafupi pafupipafupi.Mu magetsi a AC omwe amagwiritsidwa ntchito m'mayiko padziko lonse lapansi, kaya m'nyumba kapena m'mafakitale, magetsi ndi mafupipafupi amakhala 400V/50Hz kapena 200V/60Hz(50Hz).Chipangizo chomwe chimasinthira magetsi otere kukhala ma voltage kapena ma frequency variable AC magetsi amatchedwa "frequency converter".Kuti apange ma voltages osinthika ndi ma frequency, chipangizocho chimayenera kusintha kasinthasintha kukhala wapano (DC).

Ma frequency converter amagwiritsidwa ntchito kuwongolera mota ndipo amatha kusintha ma voltage ndi ma frequency.Malingana ndi kufotokozera kwa liwiro la injini ya AC, liwiro la n ndilofanana ndi f frequency, ndipo liwiro la galimotoyo likhoza kusinthidwa malinga ngati f frequency yasinthidwa.Chifukwa chake, wosinthira pafupipafupi amazindikira kuwongolera liwiro posintha ma frequency amagetsi amagetsi, omwe ndi njira yabwino kwambiri komanso njira zoyendetsera kuthamanga kwambiri.

Pakupanga ma frequency converter, njira zingapo zowongolera zasintha, kuphatikiza:

Sinusoidal pulse width modulation (SPWM) control mode, pamene 1U/f=C;

Voltage space vector (SVPWM) njira yowongolera;

Kuwongolera kwa Vector (VC) mode;

Direct torque control (DTC) mode;

Matrix intersection - njira yoyendetsera njira, etc.

Pamwambapa, kugwiritsa ntchito kwatsopano kwa inverter mu mota yotsimikizira kuphulika kumafotokozedwa.Kudzera muukadaulo wa inverter, kuthamanga kwagalimoto kumatha kusinthidwa mosavuta, kubweretsa magwiridwe antchito apamwamba komanso mayankho amphamvu kwambiri pantchito zamafakitale.