Ihe ntụgharị ntụgharị fotovoltaic

Okwu Mmalite ngwaahịa
The PV off-grid inverter bụ ngwaọrụ ntụgharị ike nke na-ebugharị-dịrị na-akwalite ike ntinye DC wee tụgharịa ya na ike 220V AC site na akwa inverter SPWM sinusoidal pulse width technology.
Dị ka grid-njikọ inverters, PV off-grid inverters chọrọ elu arụmọrụ, elu ntụkwasị obi, na a dịgasị iche iche nke DC ntinye voltaji; na usoro ike PV nke ọkara na nnukwu ike, mmepụta nke inverter kwesịrị ịbụ ebili mmiri sinusoidal na obere mgbagwoju anya.

Arụmọrụ na atụmatụ
1. A na-eji 16-bit microcontroller ma ọ bụ 32-bit DSP microprocessor maka njikwa.
2. PWM njikwa mode, na-emeziwanye arụmọrụ.
3. Nabata dijitalụ ma ọ bụ LCD iji gosipụta paramita ọrụ dị iche iche, ma nwee ike ịtọ oke dị mkpa.
4. Square ife, gbanwetụrụ ife, sine ife mmepụta. Nsonaazụ ebili mmiri sine, ọnụego mgbagha ụdị ebili mmiri na-erughị 5%.
5. High voltaji stabilization ziri ezi, n'okpuru akara ibu, mmepụta ziri ezi bụ n'ozuzu na-erughị gbakwunyere ma ọ bụ mwepu 3%.
6. Ọrụ mmalite nwayọ iji zere mmetụta dị elu ugbu a na batrị na ibu.
7. Mpụpụ mgbanwe dị elu ugboro ugboro, obere nha na ịdị arọ.
8. Ejiri ọkọlọtọ nkwurịta okwu RS232/485, adaba maka njikwa nkwurịta okwu dịpụrụ adịpụ.
9. Enwere ike iji mee ihe na gburugburu 5500 mita n'elu oke osimiri.
10, Na input agbara njikọ nchebe, input undervoltage nchebe, input overvoltage nchebe, mmepụta overvoltage nchebe, mmepụta bufee nchebe, mmepụta mkpụmkpụ sekit nchebe, overheat nchebe na ndị ọzọ na-echebe ọrụ.

Akụkụ ọrụ aka dị mkpa nke ndị ntụgharị grid kwụsịrị
Mgbe ị na-ahọrọ ihe gbanyụọ-grid inverter, e wezụga na-aṅa ntị na mmepụta waveform na iche ụdị nke inverter, e nwere ọtụtụ teknuzu paramita ndị dịkwa nnọọ mkpa, dị ka usoro voltaji, mmepụta ike, elu ike, ntughari arụmọrụ, ịgbanwee oge, wdg The nhọrọ nke ndị a parameters nwere mmetụta dị ukwuu na ibu si ọkụ eletrik ina.
1) voltaji sistemụ:
Ọ bụ voltaji nke ngwugwu batrị. Ntinye ntinye nke inverter off-grid na voltaji mmepụta nke njikwa bụ otu, ya mere, mgbe ị na-emepụta ma na-ahọrọ ihe nlereanya, ṅaa ntị ka ị na-edebe otu ihe ahụ na njikwa.
2) Ike mmepụta:
Off-grid inverter mmepụta ike okwu nwere ụdị abụọ, otu bụ pụtara ike okwu, unit bụ VA, nke a bụ ntụaka UPS akara, n'ezie mmepụta arụ ọrụ ike mkpa ka ịba ụba ike ihe, dị ka 500VA off-grid inverter, ike ihe bụ 0.8, n'ezie mmepụta ike arụ ọrụ bụ 400W, ya bụ, na-ekwu, na eletriki ibu ibu 4. wdg; nke abụọ bụ okwu ike na-arụ ọrụ, unit bụ W, dị ka 5000W off-grid inverter, n'ezie mmepụta ike arụ ọrụ bụ 5000W.
3) Ike kacha elu:
Na PV off-grid usoro, modul, batrị, inverters, ibu mejupụtara eletriki usoro, inverter mmepụta ike, kpebisiri ike site ibu, ụfọdụ inductive ibu, dị ka ikuku conditioners, nfuli, wdg, moto n'ime, mmalite ike bụ 3-5 ugboro nke gosiri ike, ya mere, gbanyụọ-grid inverter nwere pụrụ iche chọrọ maka ibufe ibu. Ike kacha elu bụ ikike ibufe ihe ngbanwe ikuku-grid.
Onye ntụgharị ahụ na-enye ike mmalite na ibu ahụ, nke sitere na batrị ma ọ bụ modul PV, na oke a na-enye site na ihe nchekwa nchekwa ike n'ime inverter - capacitors na inductors. Capacitors na inductors bụ ma ihe nchekwa nchekwa ike, ma ihe dị iche bụ na ndị na-emepụta ihe na-echekwa ike eletrik n'ụdị eletriki eletrik, na ikike nke capacitor na-ebuwanye ibu, otú ahụ ka ike ya nwere ike ịchekwa. N'aka nke ọzọ, ndị inductors na-echekwa ike n'ụdị oghere magnetik. Ka ikike ndọta dị ukwuu nke isi inductor na-abawanye, ka inductance na-abawanye, na ike ka enwere ike ịchekwa.
4) Ntughari arụmọrụ:
Off-grid usoro ntụgharị arụmọrụ gụnyere akụkụ abụọ, otu bụ arụmọrụ nke igwe n'onwe ya, sekit inverter na-apụ apụ dị mgbagwoju anya, ịgafe ntughari multi-stage, yabụ arụmọrụ n'ozuzu ya dị ntakịrị ala karịa ihe inverter ejikọrọ, n'ozuzu n'etiti 80-90%, ike ka ukwuu nke igwe inverter n'onwe ya, ike ikuku dị elu karịa sistemu ikuku dị elu. arụmọrụ dịkwa elu. Nke abụọ, ịrụ ọrụ nke batrị na ịchaji batrị, nke a bụ ụdị batrị nwere njikọ, mgbe fotovoltaic na-emepụta ike na-arụkọ ọrụ ike, fotovoltaic nwere ike ịnye ibu ahụ ozugbo iji mee ihe, na-enweghị mkpa ịgafe ntụgharị batrị.
5) Oge mgbanwe:
Off-grid usoro na ibu, e nwere PV, batrị, ịba uru atọ ụdịdị, mgbe ike batrị ezughi oke, ịgbanwee ka utility mode, e nwere a ịgbanwee oge, ụfọdụ gbanyụọ-grid inverters na-eji eletrọnịkị ịgbanwe agbanwe, oge n'ime 10 milliseconds, kọmputa desktọọpụ agaghị emechi, ọkụ agaghị flicker. Ụfọdụ ndị na-emegharị ihe na-adịghị grid na-eji ntụgharị relay, oge nwere ike ịbụ ihe karịrị 20 milliseconds, na kọmputa desktọọpụ nwere ike mechie ma ọ bụ malitegharịa.