Inverter bụ ụdị ngwaọrụ mgbanwe ike mejupụtara ngwaọrụ semiconductor, nke a na-ejikarị eme ka ike DC bụrụ ike AC, nke mejupụtara sekit nkwalite na inverter bridge circuit.The boost circuit boosts DC voltaji nke anyanwụ cell na DC voltaji chọrọ site inverter mmepụta akara;The inverter àkwà mmiri sekit na-atụgharị DC voltaji agbalitere n'ime nkịtị ugboro AC voltaji n'otu n'otu.
Inverter, nke a makwaara dị ka onye na-ahụ maka ọkụ eletrik, nwere ike kewaa ụzọ abụọ nke ọkụ eletrik nwere onwe ya na njikọ grid dịka ojiji nke inverter na usoro mmepụta ọkụ fotovoltaic.Dabere na ọnọdụ modulation nke waveform, enwere ike kewaa ya ka ọ bụrụ onye na-atụgharị ebili mmiri square, onye na-atụgharị ebili mmiri, sine wave inverter na ngwakọta inverter ụzọ atọ.N'ihi na inverter eji na grid-jikọrọ usoro, dị ka ọnụnọ ma ọ bụ na-anọghị nke transformer nwere ike kewara n'ime ihe ntụgharị ụdị inverter na mgbanwe ụdị mgbanwe.Akụkụ teknụzụ bụ isi nke inverter fotovoltaic anyanwụ bụ:
1. voltaji mmepụta ego
Onye ntụgharị pv kwesịrị inwe ike ịwepụta voltaji a na-egosi n'ime oke mgbanwe mgbanwe nke voltaji dc akọwapụtara akọwapụtara.N'ozuzu, mgbe voltaji mmepụta gosiri bụ otu-phase 220v na atọ-phase 380v, voltaji fluctuation deviation nwere ndokwa ndị a.
(1) N'ime ọrụ steeti kwụsiri ike, a na-achọkarị mgbanwe mgbanwe voltaji ka ọ ghara ịgafe ± 5% nke uru akwadoro.
(2) Mgbanwe voltaji agaghị agafe ± 10% nke uru elelegoro ma ọ bụrụ na ngbanwe ibu.
(3) N'okpuru ọnọdụ ọrụ nkịtị, ogo na-adịghị mma nke mmepụta voltaji nke okpukpu atọ nke inverter ekwesịghị gafere 8%.
(4) Mgbagwoju anya nke mmepụta voltaji ebili mmiri nke atọ (sine wave) ekwesịghị gafere 5%, na mmepụta otu nkeji ekwesịghị gafere 10%.
(5) The inverter mmepụta AC voltaji ugboro n'okpuru nkịtị na-arụ ọrụ ọnọdụ ya ndiiche kwesịrị n'ime 1%.Ugboro voltaji mmepụta akọwapụtara na ọkọlọtọ mba gb/t 19064-2003 kwesịrị ịdị n'etiti 49 na 51hz.
2, ibu ike ihe
Ihe na-akpata ike ibu na-egosi ikike nke inverter nwere ibu inductive ma ọ bụ ibu capacitive.N'okpuru ọnọdụ sine ebili mmiri, ihe na-akpata ike ibu sitere na 0.7 ruo 0.9, na ọkwa bụ 0.9.N'ihe banyere ụfọdụ ike ibu, ma ọ bụrụ na ihe ike nke inverter dị ala, ikike inverter chọrọ ga-abawanye, na-eduga n'ịbawanye ọnụ ahịa, n'otu oge ahụ, ike pụtara ìhè nke fotovoltaic usoro AC loop na-abawanye, na loop nke ugbu a na-abawanye, ọnwụ ahụ ga-abawanye ụba, arụmọrụ sistemụ ga-ebelata.
3. E gosipụtara mmepụta ugbu a na ikike
Mpụtapụta ugbu a na-ezo aka na mpụta egosipụtara ugbu a nke inverter n'ime oke ihe ike ibu akọwapụtara (otu: A).Ikike mmepụta akwadoro bụ ngwaahịa nke voltaji a na-eme ka ọ dị ugbu a na mmepụta ihe dị ugbu a nke inverter mgbe ihe nrụpụta ike bụ 1 (ya bụ, ibu resistive dị ọcha), na KVA ma ọ bụ kW.
Oge nzipu: Ọgọst-20-2022
