Tlhahlobo ea tšusumetso ea li-harmonics matleng a motlakase

Mehloli ea li-harmonics

Ho na le mabaka a mangata a ho hlahisa li-harmonics, kahoo ho na le mehloli e mengata haholo, 'me mefuta ea lisebelisoa tse amehang le eona e bontša litšobotsi tse itseng tse fapaneng. Har'a tsona, mehloli e meholo ea li-harmonics e kenyelletsa haholo-holo lihlopha tsa transformer grid ea motlakase, lionto tsa arc tsa motlakase tsa indasteri, lisebelisoa tse kholo tsa elektroniki tsa motlakase oa mohato o le mong, le mefuta e mengata ea lisebelisoa tsa rectifier le lisebelisoa tse laolang motlakase oa AC.

Tlhahlobo e kotsi ea li-harmonics

Boteng ba li-harmonics tsamaisong ea motlakase bo lekana le mohloli oa tšilafalo ea sistimi ea motlakase, 'me ntho ea tšilafalo ke haholo-holo tikoloho ea motlakase tsamaisong ea motlakase. Jwalo ka karolo ea bohlokoa ea tikoloho ea sistimi ea motlakase, tikoloho ea motlakase e tla bontša likotsi tse fapaneng tlas'a tšusumetso ea maemo a fapaneng a li-harmonics. Leha ho le joalo, kotsi ena e fokolang e tla boela e fokotse katleho ea ts'ebetso ea lisebelisoa tsa motlakase, 'me liphello tse tebileng ka ho fetisisa li ka lebisa mahlorisong a ts'ebetso e tsitsitseng le e sireletsehileng ea sistimi ea motlakase le tšenyo ea lisebelisoa tsa motlakase. Kotsi ea tlhahiso ea harmonic e kenyelletsa ka ho khetheha likarolo tse latelang:

(1) Lisebelisoa tsa motlakase li futhumala ka mokhoa o sa tloaelehang tlas'a ts'ebetso ea li-harmonics, 'me tahlehelo e eketsehileng e kholo haholo. Leha ho na le lekhalo le leholo pakeng tsa bongata ba hona joale ea harmonic le hona joale ea motheo, boteng ba li-harmonics bo tla mpefatsa phello ea letlalo la sesebelisoa, 'me khanyetso e sebetsang e tla eketseha ts'ebetsong ea ho utloa phello ea letlalo. Bakeng sa lisebelisoa tse ling tse khethehileng, tahlehelo e kholo ea hona joale ea eddy le tahlehelo ea hysteresis le tsona li tla etsahala, joalo ka lisebelisoa tsa motlakase tse nang le li-cores tsa tšepe. Ha sebopeho sa leqhubu se sothehile ho isa bohōleng bo itseng, leqhubu le leholo la tlhōrō ea amplitude le tla eketsa matla a phallo e itseng. Tlas'a maemo a joalo a tšebeliso e phahameng, ho bonolo ho fokotsa bophelo ba ts'ebeletso ea lisebelisoa tsa motlakase.

(2) Enjene e ka baka ho thothomela ha mechine. Tlas'a tšusumetso ea maqhubu a harmonic, matla a makenete a potolohang a enjene a tla hlahisa torque e otlang e ka etsang hore enjene e thothomele. Tlas'a tšusumetso ea maqhubu a tlhaho a enjene, mofuta ona oa ho thothomela o ka baka ho thothomela ha mechine ho kotsi haholoanyane, ka hona o beha boleng ba lisebelisoa tsa motlakase kotsing esita le ho beha maphelo a batho kotsing.

(3) Tšitiso ho lisebelisoa tsa khomphutha le lisebelisoa tse ling tsa taolo ea othomathiki. Maemong a tloaelehileng, lisebelisoa tsa taolo ea othomathiki le litsamaiso tse ling tse amanang le taolo ea othomathiki li entsoe ho latela motlakase o tloaelehileng oa hona joale le o jarollotsoeng. Ha li-harmonics li hlahisoa, sistimi ea taolo ea othomathiki ha e nahane ka ntlha ena e susumetsang, e leng se etsang hore ho be bonolo Tšitiso e ama ts'ebetso ea ts'ebetso ea eona ea taolo. Ha tekanyo ea tšilafalo ea li-harmonics e le kholo, ho ka etsahala hore ho fetoloe mekhoa ea ts'ebetso ea sistimi ea taolo ea othomathiki, e leng se etsang hore e hlahise tataiso e fosahetseng. Tšusumetso ea mofuta ona e tla ama tlhahiso le ts'ebetso ea 'nete ka botebo, esita le ho baka likotsi tse ke keng tsa fetoloa tsa polokeho.