Ingaba i-inverter edityanisiweyo yegridi ifezekisa njani ukuhamba kwangoku kwigridi?

Ii-inverters zibaluleke kakhulu kwiinkqubo zamandla zanamhlanje, ngakumbi kwiinkqubo zamandla ahlaziyekayo. Umsebenzi ophambili we-inverter kukuguqula umbane othe ngqo owenziwe ngumthombo wamandla we-DC njengephaneli ye-photovoltaic, iseli ye-fuel, okanye ibhetri ye-lithium ukutshintshiselana ngoku ehambelanayo negridi kwaye uyidibanise kwigridi.Indlela yokuqonda ukuhamba kwangoku kwigridi ibe yingxaki abantu abaninzi abayixhalabeleyo kule nkqubo.Umahluko onokubakho, umahluko onokuthi ubekho, kunye nomgaqo osebenzayo wegridi ephononongwayo ukuze uphendule lo mbuzo we-inverta uya kucaciswa ngcono kwigridi yokudibanisa igridi ukuze uphendule lo mbuzo. ii-inverters, iiseli ze-fuel, okanye iibhetri ze-lithium, kunye nomsebenzi wangoku wokukhawulela we-inverter.

1. Yeyiphi indlela i-inverter edityaniswe ngayo igridi ifezekisa ukuhamba kwangoku kwigridi?

I-grid-iqhagamshelwe indima ebalulekileyo ye-inverter iquka ukuguqula i-DC ibe yi-AC kunye nokuqinisekisa ukuba i-AC ephumayo inokondliwa ngokutyibilikayo kwigridi.I-Voltage ehambelanayo kunye nokulungelelaniswa kwe-frequency yimigaqo yokusebenza ye-inverter.I-AC yombane owenziwe yi-inverter kufuneka ihambelane ngokubhekiselele kwi-amplitude, i-frequency, kunye nesigaba kunye negridi ye-voltage ye-voltage kwi-voltage ye-AC kwi-voltage ye-grid kwi-voltage ye-AC kwi-voltage ye-grid. ke ayikwazi ukugudisa ukuhamba kwangoku kwigridi kwaye inokuchaphazela nokuzinza kokugqibela.

Ukuhamba kombane kulandela umgaqo osisiseko womahluko onokuthi ubekho: kuphela xa kukho umahluko wombane phakathi kwamanqaku amabini apho umsinga wangoku usuka kwindawo apho umbane uphezulu ukuya kwindawo apho umsinga uphantsi. Ngamanye amazwi, kwii-inverters eziqhagamshelwe kwigridi, kuthetha ukuba amandla ombane we-AC we-inverter ephumayo afuna ukugcina umahluko othile onokubakho kumbane wegridi. Xa i-voltage yegridi iphezulu kune-voltage ye-output ye-inverter, yangoku ayiyi kuhamba kwigridi, kwaye i-inverter idinga ukulungelelanisa i-voltage yayo yokuphuma ukuze iqinisekise ukuba yangoku inokuhamba kakuhle kwigridi.

Ngaphezu koko, kufuneka ilandele i-frequency kunye nesigaba segridi ngexesha langempela lokuqinisekisa ukuvumelanisa.I-current yegridi kunye nemveliso yangoku ye-inverter kufuneka igcine i-frequency kunye nesigaba esifanayo, ukwenzela ukuba xa i-current igeleza kwigridi, ayiyi kubangela nayiphi na imohluko wesigaba esibangela ukuguquguquka kwegridi. Ke ngoko, i-inverter iqinisekisa imveliso ye-AC inokuqukuqela ngokuthe chu kwigridi ngokulawula i-voltage, frequency, kunye nesigaba.

2.Ingaba umahluko onokubakho okanye onokubakho ofunekayo ukudala ukuhamba kwangoku kwigridi?
Ewe, ukuhamba kombane ngokusisiseko kuqhutywa ngumahluko onokubakho okanye umahluko onokubakho. Umahluko onokubakho ngumahluko phakathi kwezinto ezimbini ezinokubakho, kwaye umahluko wombane uthetha umahluko wombane phakathi kwamanqaku amabini. Ekusetyenzisweni kwe-inverter edibeneyo yegridi, umehluko we-voltage phakathi kwe-inverter kunye negridi inquma indlela yokuhamba kwangoku. Kuphela xa kukho ukungafani okuthile phakathi kwe-voltage ephumayo ye-inverter kunye ne-grid voltage, i-current iya kuhamba ukuya kwi-grid.I-inverter iqinisekisa ukuba lo mahluko we-voltage ungaphakathi koluhlu olufanelekileyo ngokulungelelanisa i-voltage ephumayo ukuhlangabezana nenjongo yayo yokuvumela ukuhamba kwangoku kwigridi.

3.Ingaba i-photovoltaic grid-eqhagamshelwe kwi-inverter inokudibanisa ne-fuel cell okanye ibhetri ye-lithium ecatshangelwe apha ngezantsi ukuqonda ukuveliswa kwamandla egridi:
I-Photovoltaic igridi edibeneyo ye-inverters inokudibaniswa kungekhona kuphela kwi-photovoltaic panel panel kodwa nakwezinye iintlobo ze-DC zamandla ombane, njengeeseli ze-fuel okanye iibhetri ze-lithium, ukuveliswa kwamandla okudityaniswa kwegridi.Umgaqo osisiseko wokusebenza uyafana: umbane othe ngqo uguqulwa ube yi-alternating yangoku ehambelanayo kunye negridi ngokusebenzisa i-inverter.

Iimpawu zokuphuma kweeseli zepetroli kunye neebhetri ze-lithium zifana neeseli ze-photovoltaic: zombini zibonelela ngamandla e-DC, kodwa i-voltage yabo kunye nemveliso yangoku inokuthi ihluke.Ngokuqhelekileyo, i-voltage ephumayo ye-fuel cell ichaphazeleka kakhulu ngokutshintsha komthwalo, kwaye i-voltage yebhethri ye-lithium inokutshintsha kunye nesimo sokutshaja kunye nesimo sempilo yebhetri. Ke ngoko, xa ezi nkqubo zamandla zidibana negridi, i-inverter ifuna ukuguquguquka okwaneleyo ekuhlengahlengiseni i-voltage kunye nemveliso yangoku ukuze ikwazi ukuhambelana ngokuchanekileyo ne-voltage, frequency, kunye nesigaba segridi.

Ngokuqhelekileyo, i-photovoltaic i-inverters edibeneyo yegridi inokudibaniswa kwigridi kunye ne-fuel cell kunye ne-lithium battery systems, ngaphandle kokuba i-inverter inokuguqula ngokufanelekileyo ngoku ngokuthe ngqo ukusuka kwimithombo yamandla eyahlukeneyo ukuya kwi-alternating current efanelekileyo kwigridi kwaye inokumelana nemingeni yokuguquguquka kwebhetri okanye i-fuel cell output.

4.Xa umbane oqhagamshelwe kwigridi uphunyezwa, ngaba i-inverter inganciphisa umsinga?
Ukunciphisa okwangoku ngumsebenzi obalulekileyo we-inverter edityanisiweyo yegridi, ngakumbi kwinkqubo yokuvelisa amandla egridi.I-inverter inokubeka iliso kumthwalo wangoku kunye nomthamo we-voltage yegridi kwaye ifezekise umda wangoku ngokuhlengahlengisa amandla aphumayo.Xa ibhetri ihlawuliswa kakhulu okanye umthwalo wegridi yamandla mkhulu, i-inverter ilungelelanisa ngokuzenzekelayo imveliso ukuze igweme kakhulu ngoku ukungena kwigridi yamandla ukuthintela ukugqithiswa komthwalo wegridi yamandla okanye umonakalo.

Umsebenzi wokukhawulela wangoku, onikezelwe kwi-inverter, uyilawula ngaphakathi kunye ne-algorithm ngendlela yokuba imveliso yangoku ayidluli ubuninzi obuvunyelwe yigridi.Ngokomzekelo, xa ukuguqulwa kombane okanye utshintsho lomthwalo lwenzeka ngaphakathi kwegridi, i-inverter iyanciphisa ngokuzenzekelayo amandla okuvelisa ukuphepha ukuguquguquka okungadingekile kwangoku kunye nokugcina uzinzo lwegridi.

Ngamanye amazwi, indima yangoku yokunciphisa i-inverter iqinisekisa ukuba ukhuseleko kunye nokuzinza kugcinwa kwigridi yamandla kunye nokuthintela umthwalo ogqithisiweyo wegridi yamandla okanye umonakalo wesixhobo esinokubangelwa ngumbane ogqithisiweyo we-inverter.

Isiguquli esiqhagamshelwe kwigridi sisebenza ngokulungelelanisa amandla ombane wokuphuma, ukuphindaphinda, kunye nesigaba sokuqinisekisa ukuba sidityaniswa nombane wegridi, yiyo loo nto ivumela ukuhamba kwangoku kwigridi. Ixhomekeke kumahluko onokuthi ubekho okanye umahluko wevolthi, kwaye kulapho ke langoku iya kuhamba kakuhle kwigridi; oko kukuthi ukuba kukho umahluko ofanelekileyo wombane okhoyo phakathi kombane ophumayo we-inverter kunye nombane wegridi. iphaneli kodwa kunye nemithombo yamandla e-DC efana neeseli zepetroli kunye neebhetri ze-lithium.Ngoko ke, i-inverter kufuneka ilungelelanise ngokwaneleyo ukujongana nokuguquguquka okuvela kwimithombo yamandla eyahlukeneyo.Ekugqibeleni, umsebenzi okhoyo wokukhawulela we-inverter unokuthintela ngokufanelekileyo umthwalo wegridi ukuba ube mkhulu kakhulu, kwaye uqinisekise ukhuseleko kunye nokuzinza kwegridi edibeneyo yokuvelisa amandla.