1. Mohloli oa puso e lumellanang
Lentsoe la pulse current le qalile ka tlhahlobo ea lipalo ea pulse current e amanang le lisebelisoa tsa acoustic.E thehile motheo o motle lekholong la bo18 le la bo19 la lilemo.Fourier et al.e khothalelitse ka ho hlaka mokhoa oa tlhahlobo ea harmonic, o ntseng o sebelisoa haholo lits'ebetsong tsa phepelo ea motlakase.Bothata ba pulse current bo qalile lekholong la bo20 la lilemo.Mehla le lilemo tsa bo-1930 li ile tsa hapa tlhokomelo ea bohle.Ka nako eo, tšebeliso ea Fora ea li-converter tse emeng tsa mercury arc e ile ea baka liphetoho tsa maqhubu a motlakase le a hona joale.Ka 1945, JCRead e ile ea hatisa maqhubu a maqhubu a motlakase a amanang.Lilemong tsa bo-1950 le bo-1960, ka lebaka la nts'etsopele ea theknoloji ea phetisetso ea motlakase e phahameng ka ho toba, li-converter tse amanang le tsona li ile tsa lokolloa, tse bakileng mathata a mangata a hona joale tsamaisong ea motlakase.Ho tloha lilemong tsa bo-1970, ka lebaka la tsoelo-pele e potlakileng ea thekenoloji ea matla a elektronike, lisebelisoa tse sa tšoaneng tsa elektronike tsa motlakase Sisteme ea phepelo ea matla, tlhahiso ea indasteri, lipalangoang le ts'ebeliso ea lapeng e ntse e ata.Litlamorao tse mpe tsa maqhubu a pulse li ntse li mpefala le ho feta.Lefatšeng lohle le lebetse ka ho lekaneng bothata ba hona joale ba ho otla ha pelo.Likhonferense tse 'maloa tsa thuto tse mabapi le mathata a hona joale a pulse li 'nile tsa tšoaroa linaheng tsa machaba.Litsi tsohle tse kholo tsa liphuputso tsa thuto li thehile melao le litlhoko tsa ho fokotsa sekhahla sa phepelo ea motlakase le lisebelisoa tsa tšebeliso ea matla.Thepa ea motlakase e chesa ho feta tekano, e baka ho thothomela le lerata, 'me e etsa hore lesela la insulating le brittle.Bophelo ba ts'ebeletso bo khutsufalitsoe, esita le liphoso kapa tšenyo e etsahala.Pulse current e etsa hore karolo ea sistimi ea phepelo ea motlakase e bue ka letoto kapa ka ho ts'oana.E tla etsa hore sesebelisoa sa ts'ireletso ea li-relay le sesebelisoa sa ts'ireletso se senyehe, se etse hore tekanyo ea matla a motlakase oa motlakase le netefatso li tsamaee hampe, 'me maqhubu a kantle a sistimi ea phepelo ea motlakase a tla baka tšitiso e kholo ho lisebelisoa tsa puisano le lihlahisoa tsa elektroniki.
Joang ho laola pulse current?Haholo-holo ntlheng ea ho fetola phepelo ea motlakase le tlhokomelo ea makoloi, ka ntlafatso ea li-automation tsa taolo ea indasteri, ts'ireletso ea tikoloho le ho boloka matla, maano a ho boloka matla le phokotso ea mosi, hangata li-motor ha li hokahane ka kotloloho le marang-rang a motlakase mme li sebelisoa ka kotloloho.Ka kakaretso, li tsamaisoa ke li-starter tse bonolo.Inverter e khona ho laola matla a tlhahiso le lebelo la enjene, ea fihlela litlhoko tsa ts'ebetso, 'me e na le litlamorao tse makatsang ts'ireletsong ea tikoloho le ho boloka matla.Joalokaha motho e mong le e mong a tseba, starter e bonolo e bakile bothata ba hona joale ba harmonic ho marang-rang a matla.Lik'hamphani tsohle tsa motlakase ha li lumelle bareki ho hlahisa ho fetella ha harmonic hona joale ho grid ea matla.Bareki ba tlamehile ho felisa matla a harmonic a bakoang ke ho qala ka bonolo.Ka Starter e bonolo Ts'ebeliso e pharaletseng le ts'ireletso ea li-motor, MTE e kenyelletsa li-reactors tsa series, li-output reactors, li-filters tsa dv / dt le lihlahisoa tse ling, moqapi o ikhethang oa dV Sentry o fana ka tšireletso e ntle ea lehlakoreng la mojaro, ho lumella li-motors tsa AC, lithapo le li-Soft starters li sirelelitsoe. ho tloha ho li-spikes tsa motlakase oa ho sebetsa le ho kena-kenana le mekhoa e tloaelehileng ea ho sebetsa.
Sefahla se entsoeng hantle se kopanya hoo e ka bang 50% ea ho fokotsa mokhoa o tloaelehileng, tšireletso ea motlakase oa phula le ho fokotsa nako ea ho phahama.
2. Taolo ea Harmonic e boloka morero oa ho boloka matla le bohlokoa
U se ke ua nahana hore ho ba teng ha pulse current ho tla ama feela boleng ba matla a marang-rang a matla.Ha e le hantle, e boetse e amana le tšebeliso ea matla le boemo ba metsi le motlakase.Ka mantsoe a mang, haeba motlakase oa harmonic tsamaisong ea marang-rang ea matla o ka tlosoa, o tla thusa ho boloka sepheo sa ho boloka motlakase.
Ka ntlafatso ea melaoana ea naha ea ho boloka matla le ho fokotsa mosi, mehato e fapaneng ea ho boloka matla e tla amoheloa ke litoropo tse kholo, 'me taolo ea harmonic le eona e tla fetoha ntlha e ntle haholo ea katleho.
Le hoja ts'ebetsong ea taolo ea harmonic hangata e le feela ho ntlafatsa boleng ba matla, empa ho netefatsa tšebeliso e tloaelehileng ea lisebelisoa, empa ka ntlafatso ea butle-butle ea theknoloji, ha ho mpe haholo ho e sebelisa e le e 'ngoe ea mehato ea ho boloka matla a ho boloka matla. phello e ka khonehang.
Ka kakaretso ho na le litsela tse peli tsa ho finyella morero oa ho boloka motlakase, e 'ngoe ke ho fokotsa mosebetsi o sa hlokahaleng oa matla,' me e 'ngoe ke ho ntlafatsa katleho ea mosebetsi oa motlakase.
Maqhubu a Harmonic a ka baka tšenyo e ngata, e 'ngoe ea eona ke matla a senyehileng, kapa tahlehelo ea mocheso potolohong.Litahlehelo tsena tsa mocheso li bonahala ka matla a sebetsang a meter ea motlakase ea karolo e le 'ngoe.Haeba tahlehelo ea hona joale ea harmonic moleng e ka fokotseha, morero oa ho boloka motlakase o ka finyelloa.
Empa ho thoe’ng ka phello ea sebele ea mosebetsi o khethehileng?Mabapi le mokhoa oa hona joale oa taolo ea harmonic, khetho e ka sehloohong ke filthara e sebetsang le mofuta oa "notch power circuit" passive filter.Mofuta ona oa filthara o kentsoe ka letoto moleng, 'me phello ea nnete e fumanoeng ha e ntle haholo.
Ka lehlakoreng le leng, phello ea taolo ea harmonic ho pulse current source load e tla ba e loketseng haholoanyane.Haeba filthara ea hona joale ea pulse e kenngoa mohloling o mong le o mong oa mohloli oa mohloli oa motlakase, eseng feela hore ho ka fumanoa phello e ntle ea ho boloka matla, empa hape E ka netefatsa boleng ba marang-rang a matla a ka hare a k'hamphani, e leng moralo oa ts'ebetso ena.
Nako ea poso: Apr-13-2023