Iyo magetsi system yechipatara ndeye yeruzhinji system, inova iyo magetsi ekupa vimbiso unit yenzvimbo dzese.Dhizaini yekuvaka chipatara inonyanya kutora semi-centralized type, uye mutoro wemagetsi ndewekirasi yemutoro.Mhando dzayo huru dzemagetsi dzinosanganisira: lighting system, air conditioning system, mishonga yemagetsi, emergency lighting system.
Chiedza uye air conditioning system ndiyo mitoro mikuru yemagetsi mumhando dzakasiyana-siyana dzechipatara kushandiswa kwemagetsi, izvo zvichabudisa mhinduro huru yeharmonic kune grid power grid panguva yekushandiswa.Nekuda kwekushandiswa kwemhando nyowani dzemagetsi senge X-ray muchina, magineti resonance muchina MRI, CT muchina, nezvimwewo, kushandiswa kwekuchinja magetsi, kusinga vhiringike UPS uye humwe huwandu hukuru hwemitoro isina mitsetse, zvakare inoburitsa harmonic mhinduro kune. iyo grid yemagetsi.
Chipatara chine huwandu hwepamusoro hwekushandiswa kwemagetsi, uye michina yehurongwa yakachengeteka uye yakavimbika sechinhu chekutanga.Nekuda kwekushandiswa kukuru kwemutoro usina mutsara, hunhu hunoenderana ne3, 5th uye 7th kurongeka kunonyanya kugadzirwa muchipatara simba network.Harmonics inokanganisa zvakananga kushanda kwakagadzikana kwemidziyo yekurapa yakanyatsojeka, uye kuunganidzwa kwe3 harmonics pamutsara usina kwawakarerekera kunokonzera kupisa mumutsara wepakati, izvo zvinokanganisa kushanda kwakachengeteka kwegedhi remagetsi echipatara.
2. Tsanangudzo uye chizvarwa cheharmonics
Tsanangudzo yeharmonics: iyo Fourier yakatevedzana kuparara kweperiodic nonlinear sinusoidal uwandu, mukuwedzera pakuwana chikamu chimwe chete seyekutanga frequency yegedhi remagetsi, asiwo nhevedzano yezvikamu zvakakura kupfuura zvakabatanidzwa kuwanda kweiyo yakakosha frequency yesimba. grid, chikamu ichi chemagetsi chinonzi harmonics.
Chizvarwa cheharmonics: Kana ikozvino inoyerera nemutoro, kune hukama husina hukama nemhepo inotakura, iyo inoumba isiri-sinusoidal ikozvino, zvichiita kuti harmonics.
3. Kukuvadza kweharmonics
1) Harmonics inotungamira mukutadza kwemagetsi kutadza uye kukanganisa kwemidziyo tsaona dzinokonzerwa nekusashanda zvakanaka kana kuramba kwekudzivirira uye otomatiki zvishandiso, zvichikonzera kurasikirwa kwakawedzera.
2) Kuwedzera kweiyo frequency yeharmonic ikozvino kunokonzera pachena ganda mhedzisiro, iyo inowedzera kupokana kwewaya dzemagetsi tambo uye mitsara yekuparadzira, inowedzera kurasikirwa kwemutsara, inowedzera kupisa, kuchembera nguva isati yakwana, kupfupisa hupenyu, kukonzeresa kukuvara, uye anowanzoita pasi pfupi pfupi yedunhu kukanganisa, kugadzira njodzi yemoto.
3) Kurudzira magetsi grid resonance, inotungamira kune harmonic voltage uye overcurrent, kukonzera tsaona dzakakomba, kukuvadza capacitor muripo uye zvimwe zvigadzirwa zvemagetsi.
4) Harmonics inokanganisa kushanda kwakajairwa kweakasiyana midziyo yemagetsi.Iyo inotungamira kune kumwe kurasikirwa uye kuwedzeredza kweasynchronous motors uye transformer, inoteverwa nemakanika vibration, ruzha uye overvoltage, kuderedza kushanda nesimba uye kushandiswa, uye kupfupisa hupenyu hwebasa.
5) Kukanganisa nekutaurirana kwepedyo, zvemagetsi kana otomatiki kudzora michina, kana kutoita kuti isakwanise kushanda zvakajairika.
4. Kusefa chirongwa
Shaanxi Central Hospital inyika yechipiri-kirasi A chipatara chine michina yekurapa yepamusoro uye yakanakisa nharaunda yechipatara.Vashandi vedu vehunyanzvi uye vehunyanzvi vakapihwa nechipatara padanho rekutanga kuyera kunaka kwesimba reiyo yakaderera-voltage magetsi grid yechipatara.Kukanganiswa kwehuwandu hwemazuva ano muchipatara chemagetsi grid ndeye 10%, inonyanya kugoverwa muhutano hunoenderana ne3rd, 5th uye 7th order.Zvinoenderana nemhedzisiro yebvunzo, kambani yedu yakagadzira seti yehuwandu hwe400A inoshanda sefa mudziyo wechipatara, yakaiswa mu transformer low voltage outlet side, kushandiswa kwepakati kurapwa kweharonic control.
5 Inoshanda Sefa (/ 690v-inoshanda-simba-sefa-chigadzirwa/)
5.1 Chigadzirwa Sumo
Active Power filter (/noker-3-phase-34-wire-active-power-filter-apf-ahf-for-dynamic-harmonics-compensation-product/) rudzi rutsva rwemagetsi emagetsi anoshandiswa kudzvinyirira zvine simba kutsiva reactive simba, iro rinogona kutsiva harmonics uye reactive simba shanduko muhukuru uye frequency.
5.2 Kushanda Nheyo
Mutoro wezvino uno unoonekwa munguva chaiyo nekunze CT, uye harmonic kukosha inotarwa nemukati DSP.Kuburikidza neiyo PWM chiratidzo chinotumirwa kuIGBT, iyo inverter inogadzira harmonic ikozvino yakaenzana nemutoro harmonic uye mune yakatarisana nzira kupinda mugedhi remagetsi kudzima harmonic uye kuzadzisa chinangwa chekuchenesa gidhi remagetsi.
6 .Kutarisa uye kuongororwa kweharmonics control data muzvipatara
APF cabinet
Iyo data yeAPF(/harmonics-compensation-200400v-active-harmonic-filter-ahf-module-triple-phase-product/)harmonic muripo muchipatara yakatariswa nemagetsi quality analyzer CA8336 yekuFrance, uye data remhando yesimba. vakayedzwa zvakateerana pasi pemamiriro maviri ekushanda kweAPF (mushure mekubhadharwa) uye kuvhara (pasina muripo), uye data yakapfupikiswa uye yakaongororwa.
6.1 Kuyera uye kuongororwa kweAPFs(/3-phase-3-wire-active-power-filter-400v-75a-apf-panel-product/) kuisa uye kubvisa data
1:Kushanda kukosha kwekumhanya kwazvino
2:THDi pamberi Active sefa yakabatana
3:THDi mushure meActive sefa yakabatana
4:THDi kubva 1st kusvika 5th pamberi Active sefa yakabatana
5:THDi kubva 1st kusvika 5th mushure Active sefa yakabatana
6:THDi kubva 1st kusvika 7th pamberi Active sefa yakabatana
7:THDi kubva 1st kusvika 7th mushure Active sefa yakabatana
Mhedzisiro:
| APF | THDi (yakazara) | THDi (5th) | THDi (7th) |
| Pamberi peAPF batanidza | 10% | 9% | 3.3% |
| Mushure meAPF kubatana | 3% | 3% | 0.5% |
Sezvinoratidzwa mumufananidzo uri pamusoro, iyo harmonic control yechipatara neAHF (/low-voltage-active-power-filter-reduce-the-harmonic-current-active-harmonic-filter-ahf-product/) yakayerwa ne nyanzvi yesimba remhando analyzer CA8336 yekuFrance.Kuenzaniswa kwedata pamberi uye mushure meAPF yakaedzwa zvakateerana.Mushure mekushandisa APF yedu yehurmonic control, iyo yakazara ikozvino kukanganisa mwero (THDi) yechipatara network network yakaderedzwa kubva pa10% kusvika 3%, uye mhedzisiro yacho inonyanya kukosha.
7. Pfupiso
Magadzirirwo emagetsi echipatara akakosha.Kuiswa kwemichina mitsva yemagetsi kwakavandudza zvikuru hutano hwehutano uye hutano hwechipatara, uye zvakapawo nzvimbo yakanaka yekurapa kune vazhinji vevarwere.Asi simba idzva remutoro rinounzawo harmonic kusvibiswa.Kuvapo kweharmonics kunokuvadza kushanda kwakajairika kwegidhi remagetsi echipatara uye kunokanganisa kugadzikana kwemidziyo yekurapa chaiyo.Sechikamu chemagetsi emagetsi ehurumende, harmonics inowedzera kushandiswa kwemagetsi muzvipatara, izvo zvinopesana neslogan yenyika yekusimudzira kuchengetedza simba.
Mushure mekunge sefa yedu inoshanda yaiswa mukushanda, inovandudza zvakanyanya kunaka kwegedhi remagetsi echipatara, inobvisa njodzi dzekuchengetedza, inovandudza yakachengeteka uye yakachena simba remagetsi emidziyo yekurapa, uye panguva imwe chete inofunga nezvekuchengetedza simba uye kuderedzwa kwekushandisa.
Nguva yekutumira: Oct-16-2023