1. anti-kupindira uye electromagnetic kuenderana
1. Tsanangudzo yekupindira
Kupindira kunoreva kukanganisa kunokonzerwa neruzha rwekunze uye isina basa remagetsi magineti mukugamuchira kwemvura yekristaro module.Inogonawo kutsanangurwa sekuvhiringidza kunokonzerwa nesimba risingadikanwi, kusanganisira simba rezvimwe zviratidzo, kubuda kwenhema, ruzha rwekugadzira, nezvimwewo.
２.Electromagnetic kuenderana uye anti-kupindira
Kune rumwe rutivi, midziyo yemagetsi nemagetsi emagetsi nekupindira kwekunze, kune rumwe rutivi, ichaita kupindira kune kunze kwenyika.Naizvozvo, chiratidzo chemagetsi chiratidzo chinobatsira kudunhu, uye mamwe maseketi anogona kuita ruzha.
Iyo anti-kupindira tekinoroji yemagetsi edunhu chikamu chakakosha cheEMC.EMC inomirira e lectro MAG chimwe chinhu netic Kuenderana, iyo inoshandura se electromagnetic Kuenderana.Electromagnetic kuenderana ibasa remidziyo yemagetsi inoita mabasa avo munzvimbo yemagetsi pasina kukonzera kukanganisa kusingagoneki.
Iko kuenderana kweElectromagnetic kune zvirevo zvitatu: 1. Mudziyo wemagetsi uchakwanisa kudzvanya kukanganiswa kwemagetsi ekunze.2. Kukanganisika kwemagetsi kunogadzirwa nemidziyo pachayo kuchave kushoma pane yakatarwa uye haizokanganisa kushanda kwakajairwa kwezvimwe zvigadzirwa zvemagetsi munzvimbo imwechete yemagetsi;3. Iyo Electromagnetic kuenderana kwechero mudziyo wemagetsi unogona kuyerwa.
Zvinhu zvitatu zvekupikisa kupindira
Pane zvinhu zvitatu zvinoumba electromagnetic kupindira: sosi yekukanganiswa kwemagetsi, nzira yekubatanidza yekukanganisa kwemagetsi, midziyo inonzwisa tsitsi uye dunhu.
1. Electromagnetic disturbance sources zvinosanganisira zvinokonzeresa nyonganiso nezvinovhiringidza vanhu.
2. Nzira dzekubatanidza dzekukanganiswa kwemagetsi dzinosanganisira conduction nemwaranzi.
(1) conduction coupling: Ndiko kupindira kwechiitiko kuti ruzha rwunoitwa uye rwakabatanidzwa kubva kune inovhiringidza sosi kuenda kune inonzwisa midziyo uye dunhu kuburikidza nekubatana pakati pekuvhiringidza sosi nemidziyo inonzwisa tsitsi.Dunhu rekutapurirana rinosanganisira conductors, conductive zvikamu zvemidziyo, magetsi, yakajairika impedance, ndege yepasi, resistors, capacitors, inductors uye mutual inductors, nezvimwe.
(2) radiation coupling: Chiratidzo chekuvhiringidza chinopararira kuburikidza nepakati nenzira yeradiated electromagnetic wave, uye simba rekuvhiringidza rinoburitswa munzvimbo yakatenderedza maererano nemutemo wekuparadzira magetsi.Kune marudzi matatu akajairwa eradiative coupling: 1. Iyo electromagnetic wave inoburitswa nedisturbance source antenna inotambirwa netsaona neantenna yemidziyo inonzwisa tsitsi.2.The space electromagnetic field is inductively associated by conductor, iyo inonzi field-to-line coupling.3.Iyo yakakwira frequency chiratidzo induction kugadzirwa kwekubatanidza pakati pemaconductors maviri anofanana anonzi mutsara-kune-mutsara coupling.
4. Anti-kupindira zvitatu-factor formula
inotsanangura dunhu nehuwandu hwekuvhiringidza hunoratidzwa muN, zvino n inogona kushandiswa kutsanangura NG * C / I formula: G sehukukutu hweruzha;C ndiyo yekubatanidza iyo iyo ruzha sosi inoendesa kunzvimbo yakakanganisika neimwe nzira;Ini ndiri anti-kupindira kuita kwedunhu rakakanganiswa.
G, C, I zvinoreva anti-kupindira zvinhu zvitatu.Zvinogona kuonekwa kuti dhigirii yekuvhiringidza munharaunda inofananidzwa nekusimba g kwemhepo inonzwika, yakaenzana nekubatanidza chinhu C, uye inversely proportional ne-anti-interference performance I yedunhu rakavhiringidzika.Kuti uite n diki, unogona kuita zvinotevera:
1. G kuva diki, ndiko kuti, kuvapo kwechinangwa chekupindira kwesimba munzvimbo yekudzvinyirira diki.
2. C inofanira kunge iri diki, ruzha munzira yekutapurirana kuti ipe kudzoreredza kukuru.
3. Ndinowedzera, munzvimbo yekuvhiringidza kutora matanho ekudzivirira-kupindira, kuitira kuti simba rinopesana nekupindira kwedunhu, kana kudzvinyirirwa kweruzha munzvimbo yekuvhiringidza.
Dhizaini yeAnti-kupindira (EMC) inofanirwa kutanga kubva pazvinhu zvitatu kumisa kupindira uye kusvika kune EMC chiyero, kureva, kudzora kunobva nyonganiso, kugura nzira yemagetsi yekubatanidza uye kuvandudza kusadzivirirwa kwemidziyo yakaoma.
3. Nheyo yekutsvaga kunobva ruzha,
zvisinei nekuti mamiriro acho akaoma sei, anofanira kutanga adzidza nzira yekudzvinyirira ruzha panzvimbo yeruzha.Mamiriro ekutanga ndeyekutsvaga kupindira kunobva, yechipiri ndeyekuongorora mukana wekudzvinyirira ruzha uye kutora matanho anoenderana.
Zvimwe zvipingamupinyi zvinowanika zviri pachena, zvakadai semheni, kutumirwa kweredhiyo, magetsi emagetsi pakushanda kwemidziyo yemagetsi.Iyi sosi yekuvhiringidza haigone kutora danho panobva kukanganisa.
Maseketi emagetsi anonyanya kuoma kuwana masosi ekuvhiringidza.Tsvaga kunobva kupindira ndeiyi: ikozvino, voltage inoshanduka zvakanyanya ndiyo nzvimbo yemagetsi yedunhu kupindira sosi.Mukutaura kwemasvomhu, nzvimbo huru dzeDI / dt Uye du / DT ndiwo masosi ekukanganisa.
4. Nheyo dzekutsvaga nzira dzekuparadzira ruzha
1. Mhedzisiro huru ye inductive coupling noise inowanzova nyaya yekuchinja kukuru kwezvino kana kushanda kukuru kwezvino.
2. Kusiyanisa kwemagetsi kwakakura kana kwakakwirira munyaya yekushanda kwe-high-voltage, kazhinji ndiyo inonyanya kukonzera capacitive coupling.
3. Ruzha rwezvakajairwa impedance coupling inokonzerwawo nekudonha kwevoltage pane yakajairika impedance nekuda kwekuchinja kwakanyanya mune yazvino.
4. Nekuda kwekuchinja kwakanyanya muzvino, chikamu chayo che inductance chinokonzerwa nekukanganiswa kwakanyanya.Kana yazvino ikasachinja,.Kunyangwe kana kukosha kwavo kwese kwakakura kwazvo, ivo havakonzerese inductive kana capacitive coupling ruzha uye vanongowedzera yakadzikama voltage kudonha kune yakajairika impedance.
Zvinhu zvitatu zvekupikisa kupindira
Nguva yekutumira: Jun-09-2020
