Kev tiv thaiv muaj nuj nqi ntawm high voltage inverter

Cov high voltage inverter yog AC-DC-AC voltage qhov chaw inverter nrog multi-unit series qauv.Nws paub sinusoidal waveform ntawm cov tswv yim, tso zis voltage thiab tam sim no los ntawm ntau yam superposition technology, zoo tswj harmonics, thiab txo cov pa phem rau lub hwj chim daim phiaj thiab load.Nyob rau tib lub sijhawm, nws muaj cov cuab yeej tiv thaiv tiav thiab kev ntsuas los tiv thaiv covzaus converter thiab thauj khoom, txhawm rau tshem tawm thiab zam kev poob los ntawm ntau yam kev mob nyuaj, thiab tsim cov txiaj ntsig zoo dua rau cov neeg siv.

2. Kev tiv thaiv ntawmhigh voltage inverter

2.1 Cov kab hluav taws xob tiv thaiv ntawm high voltage inverter

Incoming line tiv thaiv yog kev tiv thaiv ntawm tus neeg siv cov kab nkag kawg thiabzaus converter, nrog rau kev tiv thaiv xob laim, kev tiv thaiv hauv av, kev tiv thaiv theem poob, kev tiv thaiv rov qab, kev tiv thaiv tsis sib xws, kev tiv thaiv overvoltage, kev tiv thaiv transformer thiab lwm yam.Cov cuab yeej tiv thaiv no feem ntau ntsia tau rau hauv qhov kawg ntawm lub inverter, ua ntej khiav lub inverter yuav tsum xub xyuas kom meej tias tsis muaj teeb meem hauv kab kev tiv thaiv ua ntej khiav.

2.1.1 Kev tiv thaiv xob laim yog hom kev tiv thaiv xob laim los ntawm tus neeg ntes tau teeb tsa hauv lub txee bypass lossis cov khoom siv kawg ntawm lub inverter.Tus ntes yog cov khoom siv hluav taws xob uas tuaj yeem tso hluav taws xob los yog tso tawm lub zog dhau ntawm lub zog hluav taws xob ua haujlwm, tiv thaiv cov khoom siv hluav taws xob los ntawm kev puas tsuaj ntawm tam sim no overvoltage, thiab txiav tawm tam sim no tsis tu ncua kom tsis txhob muaj cov kab hluav taws xob luv luv.Tus ntes yog txuas nrog cov kab nkag ntawm lub inverter thiab hauv av, thiab txuas nrog rau kev sib txuas nrog cov kev tiv thaiv inverter.Thaum tus nqi overvoltage ncav cuag qhov kev khiav hauj lwm voltage, tus neeg ntes tam sim ntawd ua, ntws los ntawm tus nqi, txwv lub overvoltage amplitude, thiab tiv thaiv cov khoom siv rwb thaiv tsev;Tom qab qhov hluav taws xob zoo li qub, tus neeg ntes tau sai sai rov qab los rau nws lub xeev qub kom ntseeg tau tias kev ua haujlwm zoo ntawm lub cev thiab tiv thaiv kev puas tsuaj vim yog xob laim.

2.1.2 Kev tiv thaiv hauv av yog txhawm rau nruab ib lub tshuab hluav taws xob xoom-sequence transformer ntawm inlet kawg ntawm lub inverter.Lub hauv paus ntsiab lus ntawm kev tiv thaiv zero-sequence tam sim no yog raws li Kirchhoff txoj cai tam sim no, thiab cov lej ntawm cov lej ntawm cov tam sim no nyuaj ntws mus rau txhua qhov ntawm lub voj voog yog sib npaug rau xoom.Thaum cov kab thiab cov khoom siv hluav taws xob zoo li qub, cov vector sum ntawm tam sim no hauv txhua theem yog sib npaug rau xoom, yog li qhov thib ob winding ntawm xoom-sequence tam sim no transformer tsis muaj teeb liab tawm, thiab tus actuator tsis ua haujlwm.Thaum muaj qee qhov txhaum hauv av tshwm sim, qhov vector sum ntawm txhua theem tam sim no tsis yog xoom, thiab qhov txhaum tam sim no tsim cov hlau nplaum sib nqus hauv lub nplhaib tseem ceeb ntawm xoom-ib ntus tam sim no transformer, thiab qhov thib ob voltage induction ntawm xoom-sequence tam sim no transformer yog. pub rov qab mus rau lub ntsiab saib xyuas lub thawv, thiab tom qab ntawd cov lus txib tiv thaiv raug muab tawm kom ua tiav lub hom phiaj ntawm kev tiv thaiv kev tiv thaiv av.

2.1.3 Tsis muaj theem, rov qab theem, kev tiv thaiv tsis sib npaug, tiv thaiv overvoltage.Tsis muaj theem, thim rov qab, tsis muaj kev tiv thaiv qib kev tiv thaiv, kev tiv thaiv overvoltage feem ntau yog los ntawm inverter input voltage tawm tswv yim version lossis voltage transformer rau kab hluav taws xob tau txais, thiab tom qab ntawd los ntawm CPU board los txiav txim seb nws puas yog tsis muaj theem, thim rov qab, cov tswv yim. voltage tshuav, seb nws yog overvoltage, vim hais tias yog lub input theem, los yog rov qab theem, thiab voltage imbalance los yog overvoltage yog ib qho yooj yim ua rau lub transformer hlawv.Los yog lub hwj chim chav tsev puas lawm, los yog lub cev muaj zog rov qab.

2.1.4 Transformer tiv thaiv.Covhigh voltage inverter tsuas yog tsim los ntawm peb qhov chaw: Transformer txee, chav tsev fais fab, tswj txee muaj pes tsawg leeg, transformer yog siv tangential qhuav hom transformer los hloov high-voltage alternating tam sim no mus rau hauv ib tug series ntawm ntau lub kaum sab xis ntawm qhov tsawg voltage fais fab mov rau lub hwj chim unit, lub transformer tsuas yog txias los ntawm cua txias, yog li kev tiv thaiv ntawm transformer yog tsuas yog los ntawm lub transformer kub tiv thaiv, tiv thaiv lub transformer kub siab dhau heev lawm, thiab ua rau lub transformer coil hlawv.Qhov ntsuas kub ntsuas tau muab tso rau hauv peb-theem kauj ntawm lub transformer, thiab lwm qhov kawg ntawm qhov ntsuas kub ntsuas yog txuas nrog lub ntsuas kub.Cov cuab yeej tswj qhov kub thiab txias tuaj yeem teeb tsa qhov tsis siv neeg pib kub ntawm lub kiv cua hauv qab ntawm lub transformer, lub tswb ntsuas kub, thiab qhov ntsuas kub mus txawv tebchaws.Nyob rau tib lub sijhawm, qhov ntsuas kub ntawm txhua theem coil tau tshwm sim ntau zaus.Cov ntaub ntawv ceeb toom yuav raug tso tawm hauv cov neeg siv interface, thiab PLC yuav ceeb toom lossis tiv thaiv kev mus ncig.

2.2 High voltage inverter qhov hluav taws xob sab tiv thaiv

Cov zis kab tiv thaiv ntawmhigh voltage inverter yog kev tiv thaiv ntawm cov zis sab ntawm lub inverter thiab lub load, nrog rau cov zis overvoltage tiv thaiv, tso zis overcurrent tiv thaiv, tso zis luv Circuit Court tiv thaiv, lub cev muaj zog overtemperature tiv thaiv thiab hais txog.

2.2.1 Output Overvoltage tiv thaiv.Qhov tso zis overvoltage tiv thaiv sau cov zis hluav taws xob los ntawm qhov voltage sampling board ntawm cov zis sab.Yog hais tias cov zis voltage siab dhau lawm, lub kaw lus yuav cia li tswb.

2.2.2 Output Overcurrent Protection.Output overcurrent tiv thaiv pom cov zis tam sim no sau los ntawm Hall thiab sib piv los txiav txim seb nws puas ua rau overcurrent.

2.2.3 Output Short-circuit Protection.Kev tiv thaiv kev tiv thaiv luv luv Circuit Court txhaum ntawm stator windings thiab cov hlau lead ntawm lub cev muaj zog.Yog hais tias lub inverter txiav txim siab tias cov zis yog luv luv, nws tam sim ntawd thaiv lub hwj chim unit thiab nres khiav.