Nezvinodiwa zvekuvandudzwa kwemaindasitiri, kuitira kuderedza mutoro wehurongwa uye kuchengetedza simba, nhamba huru yevariable frequency inverter anoshandiswa muzviitiko zveindasitiri.Kushandiswa kwefrequency converter inogona zvechokwadi kuwana mhedzisiro yekuchengetedza simba, asi inounzawo mamwe matambudziko akadai seharmonics.Takasangana nenzvimbo yakajairika apo nhamba huru ye-high-power inverters yakashandiswa mukutonga kwepombi yemvura.Kushanda kwenhamba yakawanda yemagetsi inverter inotungamira mukukanganisa kwakakomba kweharmonic muhurongwa, izvo zvinokanganisa zvakanyanya kushanda kwakachengeteka uye kwakagadzikana kwehurongwa.
Kubva kumunda bvunzo waveform, iyo huru harmonic kukanganisa kurongeka ndeye 5, 7 harmonics.Pamberi pekushanda kweAPF, iyo yakazara harmonic yekukanganisa mwero weiyo system yasvika 39.5%.Mushure mekushanda kweinoshanda harmonic sefa, iyo yakazara harmonic yekukanganisa mwero weiyo system yakaderedzwa kusvika pa6%, iyo waveform inodzoserwa kune yakajairika, uye harmonics yehurongwa hwega hwega yakaderedzwa zvakanyanya.Kubva pamufananidzo 1 kusvika pamufananidzo 4, tinogona kuona zvakajeka kuti mhedzisiro yekutonga kweharmonic mushure mekushandisaactive sefairi pachena uye inoshanda.
Kukuvadza kweharmonics kwakakomba zvikuru.Harmonics inoderedza kugona kwekugadzira, kutapurirana uye kushandiswa kwesimba remagetsi, kupisa midziyo yemagetsi, kuburitsa vibration uye ruzha, uye kuita kuti kuchembera kuchembera, kupfupisa hupenyu hwesevhisi, uye kunyangwe kusashanda kana kupisa.Harmonics inogona kukonzera yemuno parallel resonance kana nhevedzano resonance musimba sisitimu, iyo inokudza iyo harmonic yemukati uye inoita kuti capacitor nemimwe michina inopisa.Harmonics inogona zvakare kukonzera misoperation yekudzivirira relay uye otomatiki zvishandiso, zvichikonzera nyonganiso mukuyerwa kwesimba remagetsi.Kunze kwesimba remagetsi, harmonics inogona kukonzera kukanganisa kwakakomba kumidziyo yekutaurirana nemidziyo yemagetsi.
Theinoshanda simba sefayakabatana nehurongwa hwemagetsi mukufanana, kuburikidza nekunze ikozvino transformer kuenzanisa nhanho nhatu dzazvino.Iyo huru yekudzora unit inoverenga inodiwa muripo wazvino kukosha uye tumira rairo kuIGBT, Iyo IGBT inogadzirisa inogadzirisa frequency yekuchinja kuti ikwidze mashandiro uyeAHFkugadzirisa harmonic current.
Nguva yekutumira: Jul-28-2023