Photovoltaic off-grid inverter

Kumenyekanisha ibicuruzwa
PV off-grid inverter nigikoresho cyo guhindura imbaraga gisunika-gukurura cyongera ingufu za DC hanyuma ikayihindura mumashanyarazi ya 220V ikoresheje ikiraro cya inverter SPWM sinusoidal pulse ubugari bwa tekinoroji.
Kimwe na grid-ihuza inverter, PV off-grid inverters isaba gukora neza, kwizerwa cyane, hamwe nurwego runini rwa DC yinjiza voltage;muri sisitemu yo hagati ya nini nini nini ya PV, ibisohoka muri inverter bigomba kuba umuyaga wa sinusoidal hamwe no kugoreka gake.

Imikorere n'ibiranga
1. microcontroller ya 16-bit cyangwa 32-bit ya DSP microprocessor ikoreshwa mugucunga.
2．PWM igenzura, itezimbere cyane imikorere.
3．Kwemeza imibare cyangwa LCD kugirango ugaragaze ibipimo bitandukanye, kandi urashobora gushiraho ibipimo bifatika.
4. Umuhengeri wa kare, wahinduwe, sine wave.Sine isohoka, igipimo cyo kugoreka imiyoboro iri munsi ya 5%.
5. Umuvuduko mwinshi wa voltage uhagaze neza, munsi yumutwaro wagenwe, ibisohoka mubyukuri ntabwo ari munsi yinyongera cyangwa gukuramo 3%.
6. Buhoro buhoro gutangira imikorere kugirango wirinde ingaruka zikomeye kuri bateri no kwikorera.
7. Umuvuduko mwinshi wa transformateur kwigunga, ubunini buto nuburemere bworoshye.
8. Ifite ibikoresho bisanzwe byitumanaho RS232 / 485, byoroshye kugenzura itumanaho rya kure.
9. Irashobora gukoreshwa mubidukikije hejuru ya metero 5500 hejuru yinyanja.
10.

Ibyingenzi byingenzi bya tekinike ya off-grid inverters
Mugihe uhisemo off-grid inverter, usibye kwitondera ibyasohotse kumurongo hamwe nubwigunge bwubwoko bwa inverter, hari ibipimo byinshi bya tekiniki nabyo bifite akamaro kanini, nka sisitemu ya voltage, imbaraga zisohoka, imbaraga zo hejuru, gukora neza, guhindura igihe, n'ibindi Guhitamo ibipimo bifite ingaruka zikomeye kumashanyarazi akenera.
1) Umuvuduko wa sisitemu:
Ni voltage ya paki ya bateri.Iyinjizamo voltage ya off-grid inverter hamwe nibisohoka voltage yumugenzuzi ni kimwe, mugihe rero mugushushanya no guhitamo icyitegererezo, witondere kugumana kimwe numugenzuzi.
2) Imbaraga zisohoka:
Off-grid inverter isohoka imbaraga imvugo ifite ubwoko bubiri, bumwe nuburyo bugaragara bwimbaraga zigaragaza, igice ni VA, iyi ni ikimenyetso cya UPS, imbaraga zisohoka imbaraga nazo zigomba kugwiza ibintu, nka 500VA off-grid inverter , imbaraga zingufu ni 0.8, ibyasohotse mubyukuri imbaraga ni 400W, nukuvuga, irashobora gutwara 400W umutwaro urwanya, nkamatara yamashanyarazi, guteka induction, nibindi.;icya kabiri nigikorwa cyimbaraga zigaragaza, igice ni W, nka 5000W off-grid inverter, ibyasohotse mubyukuri imbaraga ni 5000W.
3) Imbaraga zo hejuru:
Muri sisitemu ya PV off-grid, modules, batteri, inverter, imizigo igizwe na sisitemu y'amashanyarazi, ingufu za inverter zisohoka, bigenwa numutwaro, imizigo imwe yindimu, nka konderasi, pompe, nibindi, moteri imbere, the imbaraga zo gutangira zikubye inshuro 3-5 imbaraga zapimwe, so in-grid inverter ifite ibisabwa byihariye kubirenze.Imbaraga zimpanuka nubushobozi burenze urugero bwa off-grid inverter.
Inverter itanga imbaraga zo gutangira umutwaro, igice kiva muri bateri cyangwa moderi ya PV, naho ikirenga gitangwa nibikoresho bibika ingufu imbere muri inverter - capacator na inductor.Imiyoboro hamwe na inductor byombi bigize ibikoresho byo kubika ingufu, ariko itandukaniro nuko capacator zibika ingufu zamashanyarazi muburyo bwumuriro wamashanyarazi, kandi nubushobozi bunini bwa capacitor, niko imbaraga zishobora kubika.Inductors, zibika ingufu muburyo bwa magneti.Ninini nini ya magnetiki yimikorere ya inductor, niko inductance nini, nimbaraga nyinshi zishobora kubikwa.
4) Guhindura imikorere:
Sisitemu yo guhindura imikorere ya grid ikubiyemo ibintu bibiri, kimwe nubushobozi bwimashini ubwayo, imiyoboro ya off-grid inverter umuzenguruko iragoye, kugirango unyuze mubyiciro byinshi, bityo imikorere rusange iri munsi gato ugereranije na gride ihuza inverter, muri rusange hagati ya 80-90%, niko imbaraga nyinshi zimashini za inverter zikora neza, kwigunga kwinshi kurenza uburyo bwo kwigunga inshuro nyinshi, niko sisitemu ya voltage ikora nayo iri hejuru.Icya kabiri, imikorere yo kwishyuza bateri no gusohora, ubu ni ubwoko bwa bateri ifitanye isano, mugihe amashanyarazi yumuriro wamashanyarazi hamwe noguhuza imbaraga, gufotora birashobora gutanga umutwaro wo gukoresha, bitabaye ngombwa ko unyura mubihinduranya.
5) Guhindura igihe:
Sisitemu ya off-grid ifite umutwaro, hariho PV, bateri, ikoresha uburyo butatu, mugihe ingufu za bateri zidahagije, hindura uburyo bwingirakamaro, hariho igihe cyo guhinduranya, hari inverters zimwe na zimwe zikoresha interineti zikoresha uburyo bwa elegitoronike, igihe muri milisegonda 10, mudasobwa ya desktop ntabwo izahagarara, itara ntirizima.Inverters zimwe zitari grid zikoresha relay guhinduranya, igihe gishobora kuba kirenga milisegonda 20, kandi mudasobwa ya desktop irashobora guhagarika cyangwa gutangira.