Umqolo waMandla: Ukuqonda ukuThunyelwa kunye nokuSasazwa koMbane

Ukuhanjiswa nokusasazwa kombane zizinto ezisisiseko zeenkqubo zamandla, ezinoxanduva lokuhambisa umbane ukusuka kwizityalo zamandla ukuya emakhaya, kumashishini, nakumashishini. Ukuqonda ubunzima kunye nokusebenza kwenkqubo yokuhambisa nokusasazwa kubalulekile ukuqinisekisa ukunikezelwa kombane okuthembekileyo nokusebenzayo. Eli nqaku liza kujonga iinkalo ezisisiseko zokuhanjiswa nokusasazwa kombane, ukusuka kwiziseko zophuhliso kunye nobuchwepheshe obubandakanyekayo ukuya kwimingeni kunye nezinto ezintsha ezibumba eli shishini.

Iziseko zoThumelo loMbane

Ukuhanjiswa kombane yinkqubo yokuhambisa umbane omninzi ukusuka kwizikhululo zamandla ukuya kwizikhululo, apho usasazwa khona kubathengi. Inkqubo yokudluliselwa kombane ineentambo zamandla eziphezulu, iitransformer, kunye nezinye izixhobo ezenzelwe ukuthutha umbane kumgama omde ngaphandle kokulahleka okukhulu. Iintambo zokudluliselwa kombane ophezulu, ezidla ngokubizwa ngokuba yi "grid," zidibene ukwenza inethiwekhi ejikeleza imimandla okanye amazwe. Igridi ivumela ukudluliselwa kombane phakathi kweendawo ezahlukeneyo, ukulinganisela ukunikezelwa kunye nemfuno kunye nokuphucula ukuthembeka kwenkqubo.

E-United States, inkqubo yothumelo isebenza kwiivolthi ezingama-69,000 volts (69 kV) nangaphezulu, kwaye ezinye iilayini zisebenza kwiivolthi ezidlula iivolthi ezingama-765,000 (765 kV). Iivolthi eziphezulu ziyimfuneko ukunciphisa ukulahleka kwamandla ngexesha lothumelo, njengoko umbane udibana nokumelana njengoko uhamba kwiikhontraktha. Ngokunyusa ivolthi, umbane ungancitshiswa, nto leyo ekhokelela ekulahlekelweni kwamandla okuphantsi kunye nokudluliselwa kwamandla okusebenzayo ngakumbi.

Imigca yothumelo idla ngokuxhaswa ziinqaba ezinde okanye iipali kwaye igqunywe nge-insulation ukuthintela ukukhutshwa kombane okanye iimpazamo. Uyilo kunye nokwakhiwa kweziseko zothumelo kubaluleke kakhulu ekumelaneni neemeko zokusingqongileyo ezifana nomoya, umkhenkce, kunye nombane, kunye nokuqinisekisa ukhuseleko loluntu kunye nezilwanyana zasendle.

Indima yeeNethiwekhi zoSasazo

Wakuba umbane ufikelele kwizikhululo ezingaphantsi komhlaba ngenkqubo yothumelo, emva koko usasazwa emakhaya, kumashishini, nakwabanye abasebenzisi bokugqibela ngenethiwekhi yothumelo. Iinethiwekhi zothumelo zisebenza kwiivolthi eziphantsi, zihlala ziqala kwi-4,000 volts (4 kV) ukuya kwi-33,000 volts (33 kV) kwiindawo zasezidolophini nasemaphandleni. Ivolthi iyancitshiswa ngakumbi ngokusebenzisa iitransformers ezifakwe kwiipali zombane okanye ezikwizikhululo ezingaphantsi komhlaba, ziguqula umbane ube ngamanqanaba evolthi aqhelekileyo asetyenziswa ngabathengi (umz., ii-volts eziyi-120/240 eMelika).

Igridi yokusasazwa iquka inethiwekhi enkulu yeentambo zombane, iintambo, iiswitshi, kunye neetransformer ezihambisa umbane kubasebenzisi bokugqibela. Iinkqubo zokusasazwa zenzelwe ukuthembeka nokuguquguquka, kunye nokungasebenzi kakuhle okwakhelwe ngaphakathi ukunciphisa ukuphazamiseka okuvela ekusileleni kwezixhobo okanye ukucima kwazo. Iinkqubo zokubeka esweni nokulawula eziphambili zisetyenziselwa ukuphucula ukusasazwa kombane, ukubona iimpazamo, kunye nokubuyisela inkonzo ngexesha elifanelekileyo.

Ukongeza ekunikezeleni ngombane, iinethiwekhi zokusasaza zikwadlala indima ebalulekileyo ekudibaniseni izixhobo zamandla ezisasazwe (ii-DER) ezifana neephaneli zelanga, ii-wind turbines, kunye nezixhobo zokugcina amandla. Njengoko ukwamkelwa kobuchwepheshe bamandla avuselelekayo kuqhubeka nokukhula, abaqhubi beenkqubo zokusasaza bajongene nemingeni emitsha ekulawuleni ukuhamba kombane ngeendlela ezimbini kunye nokugcina uzinzo lwegridi.

Iiteknoloji eziphambili kunye nezixhobo

Ukuhanjiswa nokusasazwa kombane kuxhomekeke kuluhlu lweetekhnoloji kunye nezixhobo ukuqinisekisa ukusebenza okusebenzayo nokuthembekileyo. Imigca yokudluliselwa kombane ene-voltage ephezulu idla ngokwenziwa ngee-conductor ze-aluminium okanye zentsimbi ezixhaswa zii-insulator kunye neenqaba zentsimbi. Izinto eziphambili ezifana nee-circuit breakers, ii-transformers, kunye nee-capacitors zibalulekile ekulawuleni amanqanaba e-voltage, ukulawula ukuhamba kombane, kunye nokugcina uzinzo lwenkqubo.

Ukuqhubela phambili kwi-electronics yamandla kukhokelele ekuphuhlisweni kweenkqubo zothumelo lwamandla oluphezulu (i-HVDC), ezibonelela ngeenzuzo ezifana nokulahlekelwa kwamandla okuncinci kwimigama emide kunye nokukwazi ukudibanisa iigridi ezingangqamananga. Itekhnoloji ye-HVDC ifanelekile ngokukodwa ekudibaniseni izixhobo zamandla avuselelekayo ezikude neendawo ezinabantu abaninzi, nto leyo evumela ukuhanjiswa kwamandla acocekileyo ngokufanelekileyo.

Kwicala lokusasazwa, ubuchwepheshe begridi ekrelekrele buvele njengendlela yokuhlaziya iziseko zophuhliso ezidalayo nokuphucula ukusebenza kakuhle kunye nokuqina kwegridi. Iziseko zophuhliso eziphucukileyo zokulinganisa (i-AMI), iinkqubo zokuzenzekelayo zokusasazwa, kunye nezixhobo zokulawula igridi zivumela ukujonga ngexesha langempela, ulawulo olukude, kunye nokwenza ngcono iiasethi zokusasazwa. Ezi teknoloji ziququzelela ulawulo lomthwalo, impendulo yemfuno, kunye nokuhlanganiswa kwezithuthi zombane, zivula indlela yegridi ezinzileyo nephendulayo.

Imingeni kunye noTshintsho kwiShishini

Ishishini lokuhambisa nokuhambisa umbane lijongene nemingeni emininzi, ukusuka kwiziseko zophuhliso ezindala kunye nezingozi zokhuseleko lwe-cyber ukuya ekudityanisweni kwezixhobo zamandla ahlaziyekayo eziguquguqukayo kunye nokuqina kwegridi. Njengoko imfuno yombane iqhubeka ikhula, kukho imfuneko engxamisekileyo yokuphucula nokwandisa iinkqubo zokuhambisa nokuhambisa ukuze kuhlangatyezwane nokukhula komthwalo omtsha kunye neepateni zokusetyenziswa ezitshintshayo.

Ukuqinisekisa ukuthembeka nokhuseleko lwegridi yeyona nto iphambili, xa kujongwa impembelelo enokubakho yohlaselo lwe-cyber, iintlekele zemvelo, kunye neziganeko zemozulu embi kwiziseko zophuhliso lwamandla. Imizamo yokuhlaziya igridi, efana nokusasazwa kohlalutyo lwegridi oluphambili kunye nokugcinwa kwangaphambili, ijolise ekuphuculeni ukuqina kunye nokuqina kwenkqubo yokuhambisa umbane.

Utshintsho kugcino lwamandla, ii-microgrids, kunye nobuchwepheshe begrid-edge bunamandla okuguqula indlela umbane odluliselwa kwaye usasazwa ngayo. Iinkqubo zokugcina amandla, kuquka iibhetri ze-lithium-ion kunye neebhetri zokuhamba, zibonelela ngamandla okugcina amandla agqithisileyo kwaye ziwahambise xa kufuneka, zinceda ekuhlanganiseni izinto ezivuselelekayo kunye nokubonelela ngenkxaso yegrid ngexesha leemfuno eziphezulu okanye iimeko ezingxamisekileyo.

IiMicrogrids, eziziinkqubo zamandla ezikwindawo ethile ezinokusebenza ngokuzimeleyo okanye ngokudibeneyo negridi ephambili, zinesithembiso sokuphucula ukuthembeka kwamandla kunye nokubonelela ngeziseko ezibalulekileyo ngexesha lokungasebenzi kwegridi. Ngokubandakanya ukuveliswa okusasazekileyo, ukugcinwa kwamandla, kunye nolawulo olukrelekrele, iiMicrogrids zinokubonelela ngomthombo wamandla othembekileyo nozinzileyo kuluntu, kwizibhedlele, kwiziseko zomkhosi, nakwizakhiwo zorhwebo.

Isiphelo

Ukuhanjiswa kombane kunye nokusasazwa kombane kudala iziseko ezibalulekileyo ezixhasa igridi yamandla yanamhlanje, okuvumela ukudluliselwa kombane ngokufanelekileyo nangokuthembekileyo ukusuka kwimithombo yokuvelisa ukuya kubasebenzisi bokugqibela. Uthungelwano oluntsonkothileyo lwemigca yokuhambisa, izitishi ezincinci, kunye neenkqubo zokusasazwa kombane luxhaswa bubuchwepheshe obuphambili kunye nezixhobo ezenzelwe ukuhlangabezana neemfuno eziguqukayo zoshishino lombane.

Njengoko eli shishini liqhubeka nokujongana nemingeni eyahlukeneyo kunye namathuba, njengokuhlaziywa kwegridi, ukuhlanganiswa kwamandla avuselelekayo, kunye nokuphucula ukuqina, kubalulekile ukuba abachaphazelekayo basebenzisane kwaye bavelise izinto ezintsha ukuze bakhe inkqubo yokuhanjiswa kombane ezinzileyo nekhuselekileyo. Ngokwamkela ubuchwepheshe obutsha, ukuphumeza ukuphuculwa kwegridi, kunye nokukhuthaza ingqondo ezinzileyo, icandelo lokuhambisa umbane kunye nokusasazwa kombane linokuziqhelanisa nokutshintsha kwemeko yamandla kwaye liqhubeke nokubonelela ngombane othembekileyo kuluntu nakumashishini. Ngotyalo-mali oluqhubekayo kunye nophuhliso, umqolo wamandla uya kuhlala uqinile kwaye uphendula kwiimfuno zexesha elizayo.