Seporo

Sistimi ea phepelo ea motlakase ea liporo tsa terene e sebelisa likarolo tse nchafatsang ho fana ka matla a DC ho li-EMU, kahoo li-harmonics li ke ke tsa qojoa.Ha litaba tsa harmonic li feta moeli o itseng, li ka baka kotsi tsamaisong ea matla a litoropo.Ntle le moo, mabone, UPS, lifti li hlahisa haholo 3, 5, 7, 11, 13 le li-harmonics tse ling.'Me matla a mojaro a maholo,' me matla a sebetsang a maholo le 'ona.

Harmonics e etsa hore ts'ireletso ea li-relay le lisebelisoa tsa othomathike tsa sistimi ea matla li senyehe kapa li hane ho sebetsa, tse behang ts'ebetso e bolokehileng ea marang-rang kotsing ka kotloloho;e etsa hore lisebelisoa tse fapaneng tsa motlakase li hlahise tahlehelo e eketsehileng le mocheso, 'me e etsa hore enjene e hlahise ho thothomela le lerata.Hona joale ea harmonic e ka har'a marang-rang a matla.joalo ka mofuta oa matla, e tla qetella e jeoa mehala le lisebelisoa tse fapaneng tsa motlakase, ka hona e eketsa tahlehelo, matla a matla a sebetsang le li-harmonics, e leng se bakang tahlehelo e eketsehileng ea li-transformer le ts'ebetso e fokotsehileng, 'me e tla kopanngoa le lehlakoreng le phahameng la motlakase, e bakang tse ling tse kholo. -mathata a boleng ba matla.

Lisebelisoa tsa mabone, UPS, li-fan le li-elevator li hlahisa maqhubu a lumellanang, a bakang ho senyeha ha motlakase.Ka nako e ts'oanang, maqhubu a harmonic a tla kopanngoa le lehlakoreng le phahameng la motlakase ka transformer.Kamora ho kengoa ha mochini o sebetsang (HYAPF) sefahla se tla hlahisa motlakase o lefang ka amplitude e ts'oanang empa li-angles tse fapaneng le li-harmonics tse bonoeng.Matla a marang-rang a felisitsoe ka li-harmonics tsa mojaro ho fihlela sepheo sa ho sefa le ho hloekisa marang-rang a matla, a ka fokotsang sekhahla sa ho hloleha ha lisebelisoa.Lisefe tsa motlakase tse sebetsang li sebetsa hantle ho feta lihloela tse tloaelehileng, li ka buseletsa li-harmonics, 'me ha li ratehe ho resonance.