Masu Haɗa Fim na YMIN: Masu Daidaita Wutar Lantarki Mai Inganci Mai Inganci don Masu Canza Wutar Lantarki na PCS na Photovoltaic

A cikin sabbin tsarin hasken wutar lantarki na makamashi, na'urar adana wutar lantarki (PCS) ita ce babbar cibiyar canza wutar lantarki ta DC zuwa wutar lantarki ta AC mai ƙarfi. Na'urorin YMIN, tare da juriyar ƙarfin lantarki mai yawa, ƙarancin asara, da tsawon rai, sune manyan abubuwan da ke haɓaka aikin inverters na PCS na photovoltaic, suna taimakawa cibiyoyin wutar lantarki na photovoltaic cimma ingantaccen canjin makamashi da fitarwa mai ɗorewa. Ayyukansu na asali da fa'idodin fasaha sune kamar haka:

1. "Garkuwar Daidaita Wutar Lantarki" don DC-Link

A lokacin tsarin canza AC-DC a cikin inverters na PCS na photovoltaic, bas ɗin DC (DC-Link) yana fuskantar yawan kwararar bugun jini da ƙaruwar ƙarfin lantarki. Na'urorin YMIN suna ba da waɗannan fa'idodi ta hanyar:

• Shan wutar lantarki mai yawan ƙarfin lantarki: Suna jure wa ƙarfin lantarki mai yawa na 500V zuwa 1500V (wanda za a iya keɓance shi), suna shan ƙarfin lantarki na ɗan lokaci da maɓallan IGBT/SiC suka samar, suna kare na'urorin wutar lantarki daga haɗarin lalacewa.

• Ƙarancin Sanyi na ESR: Ƙarancin ESR (1/10 na na'urorin lantarki na aluminum electrolytic capacitors) yana ɗaukar kwararar wutar lantarki mai yawan mita a kan DC-Link yadda ya kamata, yana rage asarar makamashi da kuma inganta ingancin canza wutar lantarki.

• Ma'ajiyar Ajiye Makamashi Mai Ƙarfi: Faɗin kewayon ƙarfin aiki yana ba da damar caji da fitar da sauri yayin canjin ƙarfin lantarki na grid, kiyaye daidaiton ƙarfin bas na DC da kuma tabbatar da ci gaba da aiki da PCS.

2. Kariya Biyu na Juriya Mai Girman Wutar Lantarki da Daidaiton Zafin Jiki

Tashoshin wutar lantarki na PV galibi suna fuskantar yanayi mai tsauri kamar yanayin zafi mai yawa da kuma zafi mai yawa. Na'urorin YMIN suna fuskantar waɗannan ƙalubalen ta hanyar ƙira masu ƙirƙira:

• Aiki Mai Dorewa a Yankin Zafin Jiki Mai Faɗi: Yanayin zafin aiki yana rufewa daga -40°C zuwa 105°C, tare da raguwar ƙarfin lantarki ƙasa da 5% a cikin yanayin zafi mai yawa, wanda ke hana lokacin aiki na tsarin saboda canjin yanayin zafi.

• Ƙarfin Ripple Current: Ƙarfin sarrafa wutar lantarki ta Ripple ya ninka na capacitors na gargajiya sau 10, yana tace hayaniyar harmonic yadda ya kamata a wurin fitar da wutar lantarki ta PV da kuma tabbatar da ingancin wutar lantarki da aka haɗa da grid ya cika ƙa'idodin ƙasa.

• Tsawon Rai da Babu Kulawa: Tare da tsawon rai har zuwa awanni 100,000, wanda ya zarce awanni 30,000-50,000 na ƙarfin lantarki na aluminum electrolytic capacitors, wannan yana rage farashin aiki da kulawa na tashoshin wutar lantarki na photovoltaic.

3. Haɗin gwiwa da Na'urorin SiC/IGBT

Yayin da tsarin hasken rana ke tasowa zuwa ga ƙarfin lantarki mafi girma (tsarin gine-ginen 1500V ya zama ruwan dare), masu ƙarfin lantarki na YMIN suna da matuƙar jituwa da na'urorin lantarki na zamani masu amfani da wutar lantarki:

• Tallafin Canjawa Mai Yawan Sauti: Tsarin ƙarancin inductance ya dace da halayen mitar SiC MOSFETs masu yawan gaske (mitar sauyawa > 20kHz), yana rage adadin abubuwan da ba sa aiki kuma yana ba da gudummawa ga rage tsarin PCS (tsarin 40kW yana buƙatar capacitors 8 kawai, idan aka kwatanta da 22 don mafita masu tushen silicon).

• Ingantaccen juriya ga dv/dt: Ingantaccen daidaitawa ga canje-canjen ƙarfin lantarki, hana girgizar wutar lantarki da ke faruwa sakamakon yawan saurin sauyawa a cikin na'urorin SiC.

4. Darajar Matakin Tsarin: Ingantaccen Ingancin Makamashi da Inganta Farashi

• Ingantaccen Inganci: Ƙarancin ƙirar ESR yana rage asarar zafi, yana ƙara ingancin PCS gaba ɗaya da kuma ƙara yawan samar da makamashi a kowace shekara.

• Ajiye sarari: Tsarin yawan wutar lantarki mai yawa (kashi 40% ƙasa da na capacitors na gargajiya) yana tallafawa ƙaramin tsarin kayan aikin PCS kuma yana rage farashin shigarwa.

Kammalawa

Na'urorin YMIN, tare da fa'idodinsu na juriyar ƙarfin lantarki mai yawa, ƙaruwar zafin jiki mai sauƙi, da kuma rashin kulawa, an haɗa su sosai cikin manyan fannoni na inverters na PCS na photovoltaic, gami da DC-Link buffering, kariyar IGBT, da kuma tace grid harmonic. Suna aiki a matsayin "mai ganuwa" na ingantaccen aiki da kwanciyar hankali a cikin tashoshin wutar lantarki na photovoltaic. Fasaharsu ba wai kawai tana motsa tsarin adana makamashi na photovoltaic zuwa "ba tare da kulawa ba a duk tsawon rayuwarsu," har ma tana taimaka wa sabuwar masana'antar makamashi ta hanzarta cimma daidaiton grid da kuma canjin sifili na carbon.