YMIN Film Capacitors: High-Efficiency Voltage Stabilizers yePhotovoltaic PCS Inverters

Mumasystem matsva emagetsi e photovoltaic, chinoshandura simba (PCS) ndicho chinhu chikuru chinoshandura simba re photovoltaic DC kuita simba re grid AC. Ma capacitor e YMIN film, ane simba rekudzivirira simba remagetsi, kurasikirwa kwakaderera, uye hupenyu hurefu, zvinhu zvakakosha pakuvandudza mashandiro e inverters dze photovoltaic PCS, zvichibatsira ma photovoltaic power plants kuti awane simba rinoshanduka uye simba rinobuda zvakanaka. Mabasa avo makuru uye zvakanakira zvehunyanzvi ndeizvi:

1. "Chidziviriro Chekudzikamisa Voltage" cheDC-Link

Munguva yekushandurwa kweAC-DC muma inverters e photovoltaic PCS, DC bus (DC-Link) inosangana ne high pulse currents uye voltage spikes. YMIN film capacitors inopa mabhenefiti aya ne:

• Kunyudzwa Kwemagetsi Akawanda: Zvichitsungirira mavoltage akakwira e500V kusvika 1500V (anogona kugadziriswa), zvinonwisa maspikes emagetsi anogadzirwa neIGBT/SiC switches, zvichidzivirira michina yemagetsi kubva panjodzi dzekuputsika.

• Kutsvedzesa Kwemagetsi eESR Yakaderera: ESR Yakaderera (1/10 yakafanana neyema capacitor emagetsi ealuminium echinyakare) inonwisa simba remagetsi rinokwira nekukurumidza paDC-Link, ichideredza kurasikirwa kwesimba uye ichivandudza mashandiro ekushandura simba.

• Simba Rinochengetedza Simba Rinokwana Simba Rakawanda: Nzvimbo yakakura yekutakura inobvumira kuchaja nekuburitsa simba nekukurumidza panguva yekuchinja kwemagetsi egrid, kuchengetedza kugadzikana kwemagetsi ebhasi reDC uye kuona kuti PCS inoramba ichishanda.

2. Dziviriro mbiri dzeHigh Voltage Withrest uye Temperature Stability

Zviteshi zvemagetsi zvePV zvinowanzosangana nemamiriro ezvinhu akaoma akadai sekupisa kwakanyanya uye hunyoro hwakawanda. Macapacitor efirimu eYMIN anosangana nematambudziko aya kuburikidza nemagadzirirwo matsva:

• Kushanda Kwakagadzikana Padanho Rekupisa Kwakakura: Kupisa kwekushanda kunofukidza -40°C kusvika 105°C, nechiyero chekuora kwesimba chiri pasi pe5% munzvimbo dzine tembiricha yakakwira, zvichidzivirira nguva yekusashanda kwesystem nekuda kwekuchinja-chinja kwetembiricha.

• Kugona kweRipple Current: Kugona kweRipple current kubata kwakapetwa kagumi kupfuura kwe electrolytic capacitors dzechinyakare, zvichinyatso svina ruzha rwe harmonic paPV output uye zvichiita kuti simba rakabatana negrid risvike pazvinodiwa nenyika.

• Kugara Nguva Refu uye Kusina Kugadzirisa: Nehupenyu hwemaawa anosvika 100,000, zvichipfuura maawa 30,000-50,000 ealuminium electrolytic capacitors, izvi zvinoderedza mari yekushanda nekugadzirisa magwenya emagetsi e photovoltaic.

3. Kubatana neSiC/IGBT Devices

Sezvo masisitimu e photovoltaic achichinja achienda kumagetsi akakwira (magadzirirwo e1500V achiva makuru), ma capacitor e YMIN thin-film anowirirana zvakanyanya nema semiconductor emagetsi echizvarwa chinotevera:

• Rutsigiro rweKuchinjana Kwemafrequency Akawanda: Dhizaini yekudzikisa inductance inoenderana nehunhu hwemafrequency akakwira eSiC MOSFETs (kuchinjana mafrequency > 20kHz), zvichideredza huwandu hwezvikamu zvisingashande uye zvichibatsira mukuita kuti masisitimu ePCS ave mashoma (sisitimu ye40kW inoda ma capacitor masere chete, zvichienzaniswa ne22 yemhinduro dzakagadzirwa nesilicon).

• Kutsungirira kweDv/Dt Kwakavandudzwa: Kugona kushanduka-shanduka kwevoltage, kudzivirira kutenderera kwevoltage kunokonzerwa nekumhanya kwakanyanya kwekuchinja mumidziyo yeSiC.

4. Kukosha kweSisitimu: Kushanda Nesimba Kwakavandudzwa uye Kugadzirisa Mari

• Kushanda Kwakanaka Kwakawedzerwa: Dhizaini yakaderera yeESR inoderedza kurasikirwa nekupisa, ichisimudzira kushanda zvakanaka kwePCS uye inowedzera zvakanyanya kugadzirwa kwesimba pagore.

• Kuchengetedza Nzvimbo: Dhizaini yesimba rakawanda (40% diki pane ma capacitor echinyakare) inotsigira kurongeka kwemidziyo yePCS uye inoderedza mari yekuisa.

Mhedziso

Macapacitor efirimu eYMIN, ane mabhenefiti makuru ekutsungirira voltage yakakwira, kukwira kwekushisa kwakaderera, uye kusachengetedza, akabatanidzwa zvakanyanya muzvinhu zvakakosha zvema inverters e photovoltaic PCS, anosanganisira DC-Link buffering, IGBT protection, uye grid harmonic filtering. Anoshanda se "muchengeti asingaonekwe" wekushanda zvakanaka uye kwakasimba mumaplanti emagetsi e photovoltaic. Tekinoroji yavo haingoiti chete kuti masisitimu ekuchengetedza simba e photovoltaic "asagadziriswe muhupenyu hwavo hwese," asiwo inobatsira indasitiri itsva yesimba kukurumidzisa kubudirira kwe grid parity uye zero-carbon transition.