Harmonic Characteristics Yakagadzirwa neRail Transit Power Distribution System

Mukupindura mashandisirwo uye maitiro ekuvandudza tekinoroji nyowani mukufambisa njanji, varidzi venharaunda yeChinese vakatofunga nzira yekugadzira nzira itsva yehungwaru yekushanda uye kugadzirisa njanji kuti ive yakachengeteka, yakasvibira, yakavimbika, yepamusoro-soro, uye yakaderera. -kudhura kushanda kwekutakura kwevanhu mumaguta.
Magetsi akakwira-kumhanya njanji yechitima: inoshandisa simba remagetsi emagetsi emagetsi system, inoshandura simba remagetsi kuita mechaniki kinetic simba, uye inochengeta iyo inogadzirisa.Simba rekuvhenekesa magetsi emagetsi rinopa simba rekuvhenekera kwakasiyana-siyana, escalator, blowers, pombi uye mamwe magetsi emagetsi emagetsi muzviteshi uye zvikamu, pamwe nesimba rekutaurirana, chiratidzo, otomatiki uye zvimwe midziyo.Iko kuchinjisa magetsi emagetsi enjiniya yekuvhenekesa system kunosanganisira iyo yeropa inodzika yekugovera chiteshi uye magetsi einjiniya emwenje marambi uye mwenje wekugovera mwenje.

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Iyo yakatsanangurwa yemagetsi sisitimu yemagetsi inotsanangurwa zvakadzama kubva pakuona kwenzvimbo yemukati, mune akawanda magetsi emagetsi maturusi ari pasi pese chiteshi chekugovera.AC uye DC inogona kupatsanura magetsi ekushandisa mu AC system uye DC system.
Harmonics muchitima njanji inonyanya kuuya kubva kune traction bhandi remagetsi rectifier inverter unit, inoteverwa neseti yakazara yeDC magetsi emagetsi mayuniti, mwenje, maelevator, monitors, air conditioners, mapombi emvura uye zvimwe zvishandiso.Makiyi eharmonics ndeye 5th, 7th, 11th uye 13th harmonics, ine mamwe echitatu maharmoniki akabatanidzwawo.Zvisina basa zvakachengetwa mune yakakwira-yakarongeka harmonic yekushandisa system inowedzera kurasikirwa kwemutsara, inokanganisa kushanda kwakavimbika kwekuchengetedza relay uye otomatiki controller, uye kuderedza kuchengetedzwa kwekushanda kwemidziyo yemagetsi inoshandiswa, nekudaro ichigadzira kukanganiswa kwemagetsi mukutaurirana uye masaini.Harmonics inogonawo kuva nekuparadza kune mamwe mashandisirwo emagetsi ekubhadhara magetsi mumutsara.Panguva imwecheteyo, iyo reactive simba muripo wemagetsi mudziyo uchawedzera maharmonics, ichigadzira denderedzwa rakashata.

Mushandisi Kukosha kweHarmonic Governance
Chitima chemudhorobha, kunyanya magetsi ekupa uye kugovera masisitimu ezviteshi zvepasi pevhu, zvinoda kuvimbika kwemagetsi ekupa magetsi.Pulse current ndiyo inonyanya kukonzera kutyisidzira kwekuvimbika kwesimba rayo.Iko kushandiswa kwemafirita anoshanda anogona kudzora zvine musoro maharmonics, kuderedza kukuvadzwa kweharmonics kune magetsi uye kugovera masisitimu, uye kuve nechokwadi chekuchengetedza uye kugadzikana kushanda kwenjanji yemudhorobha.Panguva imwecheteyo, mushure meiyo harmonic sefa, iyo harmonic kurasikirwa kweiyo system yakaderedzwa, uye yekutanga capacitor muripo mudziyo inogona kushandiswa kazhinji, ichiwedzera kuderedza kurasikirwa kwehurongwa.

Matambudziko aungasangana nawo?
1. Chinhu chesimba chakaderera, uye chinyakare reactive simba rekubhadhara mudziyo haugone kuiswa mukushanda kana kazhinji kukuvadzwa;
2. Kuchinja kwemutoro
3. The high fluctuation rate of harmonic current inokanganisa kushanda kwakavimbika kwerelay kuchengetedza uye automatic control system equipment;
4. Kusaenzana kwezvikamu zvitatu zveInternet mumagetsi ekugadzirisa magetsi kwakakomba.

Mhinduro yedu:
1. Kuti uderedze zviri mukati-yepamusoro-odha maharmonics, chitubu chesefa mudziyo unoiswa pane 400V yechipiri bhazi reinotsika-pasi substation yekusefa.
2. Gamuchira iyo inoshanduka fomu yeHongyan yakatevedzana dynamic reactive simba jenareta kuti ipe reactive simba kune yega yega chikamu cheiyo system uye kutonga kuwirirana kweiyo system panguva imwe chete.
3. Sarudza Hongyan dynamic security compensation equipment, inonyatso gadzira capacitor uye series reactor parameters maererano ne pulse current status of the system, kuvandudza simba remagetsi kuburikidza ne reactive power muripo, uye kuvandudza simba remagetsi emuguta njanji magetsi uye kugovera hurongwa.
4. Hongyan's dynamic security compensation equipment inotora nzira yakasanganiswa yekubhadhara yezvikamu zvitatu zvekuparadzanisa muripo uye chikamu chetatu co-muripo, uye inofunga nezvemuripo wezvinodiwa zvezvikamu zvitatu zvisingaenzaniswi zvepurogiramu yepurogiramu.


Nguva yekutumira: Kubvumbi-12-2023