Umsebenzi wokukhusela ukugqithiswa kwe-photovoltaic inverter

Kuyo yonke inkqubo ye-photovoltaic, "igridi yamandla e-overvoltage" yingxaki ephindaphindiweyo, ngakumbi kwiindawo apho igridi yamandla ibuthathaka kwaye umthamo odibeneyo wegridi mkhulu, iingxaki ezinjalo zixhaphake kakhulu, ngoko ke umsebenzi wokukhusela ukugqithisa kubaluleke kakhulu. Eli nqaku liza kukuthatha ukuba uqonde umgaqo "wokukhuselwa kwe-overvoltage" kunye nezisombululo ezihambelanayo.

Umsebenzi wokukhusela i-inverter overvoltage
Umsebenzi wokukhusela umbane ogqithisiweyo we-photovoltaic inverter uthetha ukuba xa i-AC yombane we-AC ye-port yenethiwekhi ye-inverter idlula umda ophezulu we-voltage yegridi ebekwe yi-inverter, i-inverter inokunqumla ngokuzenzekelayo i-relay yezibuko legridi okanye ukunciphisa amandla okuphuma ugweme umonakalo kumthwalo wombane emgceni ngenxa yokugqithisa.

Umgaqo osebenzayo wokukhusela i-inverter overvoltage
Umgaqo osebenzayo wokukhusela i-photovoltaic inverter overvoltage ikakhulu isekelwe ekufumaneni umbane kunye nenkqubo yokulawula. Xa igalelo lombane wegridi yamandla idlula ubuninzi bombane wegridi yamandla ombane ovunyelwe yi-inverter, i-voltage yokubona isekethe ngaphakathi kwe-inverter iya kuqonda ngokukhawuleza imeko engaqhelekanga kwaye iqalise inkqubo yokulawula ukuba ithathe amanyathelo okhuseleko ahambelanayo. Inkqubo yokulawula iya kunqumla ngokuzenzekelayo isiphaluka okanye ukunciphisa amandla okuvelisa ngokwesicwangciso sokukhusela kwangaphambili ukuqinisekisa ukusebenza okukhuselekileyo kunye nokuzinza kwenkqubo.

Ukubaluleka kokhuseleko lwe-inverter overvoltage
Umsebenzi wokukhusela ukugqithiswa kwe-photovoltaic inverters kubalulekile ukuqinisekisa ukusebenza ngokukhuselekileyo kweenkqubo ze-photovoltaic, ngokukodwa ezibonakaliswe kule miba ilandelayo:
Thintela umonakalo wenkqubo: Umbane ogqithisileyo ungonakalisa izinto ze-elektroniki kwaye ubangele nomlilo. Ukukhuselwa kwe-overvoltage kunokunqumla isiphaluka okanye ukunciphisa amandla okuphuma ngexesha ukuphepha umonakalo kunye neengozi.
Ukuphucula uzinzo lwenkqubo: Qinisekisa ukuba inkqubo inokusebenza ngokuzinzileyo xa ukuguquguquka kwamandla ombane kukhulu, kuphucula ukuthembeka kwenkqubo.
Ukwandisa ubomi benkqubo: Ngokuqhawula isiphaluka okanye ukunciphisa amandla okuphuma ngexesha, khusela amacandelo e-elektroniki kumonakalo kunye nokwandisa ubomi benkonzo.
Ukunciphisa iindleko zokugcina: Umonakalo wenkqubo kunye neengozi zinokuphetshwa, ngoko ukunciphisa iindleko zokugcinwa kunye nokuphucula ukusebenza kakuhle kwezoqoqosho.

Inverter eqhelekileyo igridi amandla overvoltage izizathu kunye nezisombululo
Ezona zizathu ziphambili zezi:
1. Umthamo ofakiweyo we-photovoltaic kwindawo efanayo mkhulu kakhulu kwaye izinga lokusetyenziswa liphantsi;
2. Ii-inverters ezininzi zesigaba esisodwa zihlanganiswe kumgca wesigaba;
3. Iintambo ezisetyenziswe kwi-node yokudibanisa ye-inverter zide kakhulu, zincinci kakhulu, zisongelwe, okanye i-cable material ayifanelekanga.
4. Umgama phakathi kwendawo yokudibanisa kunye ne-transformer kwindawo yesikhulumi kude.

isisombululo:
1. Khangela ukuba iitheminali ze-inverter AC iintambo zamandla zikhululekile, okukhokelela ekunyuseni ukuxhathisa ucingo.
2. Umgama womgca phakathi kwe-inverter kunye nenethiwekhi mfutshane kangangoko kunokwenzeka. Xa umgama ungenakutshintshwa, ububanzi obufanelekileyo bekhebula le-AC photovoltaic liqina;
3. Xa ii-inverters ezininzi zixhunyiwe kwigridi, khetha i-cable ububanzi obufanelekileyo ngokusekelwe kumbane emva kokuguqulwa.
4. Vala kwi-transformer yeqonga kangangoko kunokwenzeka;
5. Ii-inverters ezininzi zesigaba esisodwa zixhunyiwe kwigridi ngokulinganayo ngokunokwenzeka kumgca ophilayo wesigaba sesithathu;
6. Ukuguqulwa kwegridi yamandla: ukwandisa ukucaciswa kweentambo zothumelo lwegridi yamandla kunye nokongeza iziguquli.