Uloliwe

Ushwankathelo

Inkqubo yokuhambisa umbane wokuhamba ngesitimela isebenzisa iiyunithi zokulungisa ukubonelela ngombane weDC kwii-EMU, ke ii-harmonics azinakuphepheka. Xa umxholo weharmonic ugqitha uluhlu oluthile, kunokubangela ingozi kwinkqubo yamandla asezidolophini. Ukongeza, ukukhanya, i-UPS, iilifti ikakhulu zivelisa i-3, 5, 7, 11, 13 kunye nezinye iiharmonics. Kwaye umthwalo wamandla mkhulu, kwaye amandla asebenzayo makhulu nawo.

IHarmonics ibangela ukhuseleko lokuhambisa kunye nezixhobo ezizenzekelayo zenkqubo yamandla ekusebenzeni kakubi okanye ukwala ukusebenza, okubeka emngciphekweni ukusebenza okukhuselekileyo kwigridi yamandla; ibangela izixhobo ezahlukeneyo zombane zenze ilahleko eyongezelelweyo kunye nobushushu, kwaye zibangele ukuba imoto ivelise ukungcangcazela komatshini nengxolo. I-harmonic yangoku ikwiigridi zamandla. njengombane wamandla, uya kuthi ekugqibeleni agqitywe kwimigca nakwizixhobo ezahlukeneyo zombane, ngaloo ndlela kwande ilahleko, amandla asebenzayo agqithisileyo kunye neeharmonics, okukhokelela ekonyukeni kwelahleko zenguqu kunye nokuncipha kokusebenza, kwaye kuya kudityaniswa kwicala elinamandla ombane, kubangele Okukhulu ngakumbi -iingxaki zomgangatho wamandla.

Izixhobo zokukhanyisa, i-UPS, iifeni, kunye neelifti zivelisa imisinga ye-harmonic, ebangela ukuphazamiseka kwamandla. Kwangelo xesha, ii-harmonic currents ziya kudityaniswa kwicala le-high-voltage nge-transformer. Emva kokuba icebo lokucoca ulwelo (HYAPF) lifakiwe, icebo lokucoca ulwelo liya kuvelisa imbuyekezo ngoku kumphakamo ofanayo kodwa ii-engile zesigaba esichaseneyo kwii-harmoniki ezifunyenweyo. Igridi yamandla iyalinganiswa kunye ne-harmonics yokulayisha ukufezekisa injongo yokuhluza kunye nokucoca igridi yamandla, enokunciphisa ngempumelelo inqanaba lokusilela kwezixhobo. Iifilitha zamandla ezisebenzayo zinokusebenza okungcono kunezihluzo zesiko, zinokubuyisela i-harmonics ngamandla, kwaye azithambekele kwisandi.

Isikimu sokwenza umzobo

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Ityala labathengi

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