Mumashandisirwo anoshanda, ma frequency converter anowanzo fanirwa kuve akashongedzerwa nemareactor, mafirita, mabhureki resistors uye mabhureki mayunitsi kuti ave nechokwadi chekugadzikana kwekuita kwavo, kuwedzera hupenyu hwemidziyo, uye nekuita kudzivirira zvinokanganisa gidhi remagetsi nemidziyo. Izvi zvinotevera mabasa echikamu chimwe nechimwe uye zvikonzero zvawo:

1. Reactors
Mareactor anowanzowedzerwa kune inopinza kana kubuda kweiyo frequency converter. Mabasa avo makuru ndeaya:

Deredza maharmonics uye kushanduka kwazvino: ma frequency converters anoburitsa maharmonics, kunyanya yakaderera-frequency harmonics (yakadai se5th uye 7th harmonics). Aya ma harmonics anozokonzera kuchinja kwazvino, kukanganisa kushanda kwemotokari uye kuwedzera mutoro pane gidhi remagetsi. Mareactor anogona kunyatso kudzvanya aya maharmonics uye kuderedza kukanganiswa kwegedhi remagetsi nemimwe michina.

Smooth ikozvino kushanduka: maredhiyo anogona kuderedza kukanganiswa kweiyo frequency converter switching frequency pane yazvino, kuita yazvino waveform kupfava, uye kubatsira kudzikisa yazvino harmonics yemagetsi grid.

Limit overvoltage uye overcurrent: reactors anogona kudzikamisa kuitika kwe overvoltage kana overcurrent mune dzimwe nguva, kudzivirira frequency converters uye motors kubva mukukuvara.

Zvikonzero zvekuisa: chengetedza midziyo, kuderedza kukanganiswa kweharmonics pane gidhi remagetsi nemagetsi emagetsi, uye dzivirira yakakwira-frequency kushanduka uye matambudziko akawandisa.

2. Masefa
Mafirita anowanzo shandiswa pakupera kwekubuda kweiyo inverter. Mabasa avo ndeaya:

Bvisa high-frequency harmonics: Iyo yakakwirira-frequency switching ruzha inogadzirwa neinverter inogona kukanganisa mota uye zvimwe zvigadzirwa zvemagetsi. Iyo sefa inogona kuvandudza kugadzikana kweiyo system nekusefa kunze kwepamusoro-frequency ruzha.

Kuvandudza nharaunda yekushandisa yemota: Iyo sefa inogona kubvisa kukanganiswa kweakakwira-frequency harmonics pamota, kudzivirira matambudziko akadai sekuwandisa, vibration, uye ruzha rwemota, uye kugadzirisa kugadzikana kwekushanda kwemota.

Kuderedza kukanganiswa kwemagetsi (EMI): Iyo sefa inogona kunyatso kudzikisa kukanganiswa kwemagetsi, kuve nechokwadi chekuti michina inosangana nemagetsi inoenderana (EMC) zviyero, uye kudzivirira kukanganisa kushanda kwakajairwa kwezvimwe zvemagetsi.

Zvikonzero zvekuisa: Deredza kupindira kwepamusoro-frequency uye harmonics, kunatsiridza nharaunda yemagetsi ehurongwa, uye chengetedza mota nemimwe michina kubva mukukanganiswa.

3. Braking Resistor
Mabhureki resistors anowanzo shandiswa pamwe chete nemabhureki units. Mabasa avo makuru ndeaya:

Bvisa simba rekuvandudza: Kana iyo mota inotyairwa neiyo inverter yamira, iyo inotenderera inertia yemota inoshandura kinetic simba kuita simba remagetsi uye kuidzosera kune inverter. Kana pasina matanho anotorwa, yakawandisa regenerative simba inogona kukonzera iyo DC bhazi voltage kuti iwedzere uye kukuvadza inverter. Iyo braking resistor inogona kutora iyi yakawandisa simba uye kuishandura kuita kupisa simba, nekudaro ichidzivirira iyo DC bhazi voltage kubva pakunyanya.
Natsiridza mabhureki maitiro: Mune yakakwirira-kumhanya mota dhiraivha application, iyo braking resistor inogona kunyatsobatsira mota kudzika nekukurumidza uye kudzivirira mota kuti isaite yakakwira reverse ikozvino nekuda kwe inertia kana yamira.
Chikonzero chekuisa: Bvisa simba rekuvandudza remota kuti uve nechokwadi chekushanda kwakachengeteka kweiyo inverter uye mota, kunyanya mumaapplication anogara achitanga / kumira.

4. Braking Unit
Iyo braking unit inoshandiswa pamwe chete neiyo braking resistor. Iyo inonyanya kuita basa rekudzora uye kugadzirisa basa reiyo braking resistor:

Dzora iyo DC bhazi voltage: Kana inverter iri kushanda, inertia yemotor inogona kufudza simba rakawandisa kudzoka mubhazi reDC, zvichiita kuti voltage yebhazi iwedzere. Basa reiyo braking unit ndeyekutarisa DC bhazi voltage. Kana iyo voltage yanyanya kukwira, inokonzeresa iyo braking resistor kuti itore yakawandisa simba kudzivirira iyo bhazi voltage kubva pakupfuura mwero.
Ipa nekukurumidza mabhureki: Iyo braking unit uye resistor inoshanda pamwe chete kuti inverter ikurumidze kushandisa rakawandisa simba kana mota yamira kana kudzosera kumashure mabhureki, kuderedza nguva yekumisa mota, uye kugadzirisa kushanda kweiyo control system.
Zvikonzero zvekuisa: Dzora kuyerera kwesimba rinodzoreredza simba, chengetedza inverter kubva kune yakawandisa voltage, uye chengetedza nekukurumidza uye yakachengeteka mota braking.

Summary
Mukushandiswa chaiko kweiyo inverter, kuiswa kwemareactor, mafirita, mabhureki resistors uye mabhureki mayunitsi anogona:
Kudzvanya zvinobudirira maharmonics, kuderedza kukanganiswa kwemagetsi, uye kuve nechokwadi kugadzikana kwemidziyo uye magidhi emagetsi.
Kuvandudza kushanda uye hupenyu hwekushanda kwemotokari, uye kuderedza matambudziko akadai semota overheating, ruzha, uye vibration inokonzerwa neruzha rwepamusoro-frequency.
Gadzirisa iyo regenerative simba remota, kudzivirira iyo inverter DC bhazi voltage kuti isanyanya kukwira, uye chengetedza kushanda kwakachengeteka uye kwakagadzikana kwehurongwa.
Naizvozvo, kurongeka kunonzwisisika kwezvikamu izvi kunogona kuvandudza zvakanyanya kushanda kweiyo inverter, kuvandudza kuchengetedzwa kwehurongwa, uye kuwedzera hupenyu hwebasa remidziyo.
Paunenge uchishandisa variable frequency drive (VFD), hazvisi zvese zvinoshandiswa zvinoda kuiswa kwemareactor, mafirita, mabhureki resistors, uye mabhureki units. Kuti zvinhu izvi zvinoda kuiswa zvinoenderana nemamiriro ekushandisa, zvinodiwa system, uye mamiriro ekushanda emidziyo. Heano zvimwe zvikonzero zvakajairika uye mamiriro ekuwedzera izvi zvikamu:

1. Mamiriro ezvinhu apo mareactor anodiwa
Yakakwira grid harmonic kusvibiswa: Kana iyo inverter ichishandiswa munzvimbo ine gidhi magetsi emagetsi asina kugadzikana kana gidhi ine yakasimba harmonic kusvibiswa, reactor inogona kubatsira kudzikisa maharmonics anogadzirwa neiyo inverter switching frequency kudzivirira kukonzera kusvibiswa kukuru kune grid.
High-inverter simba: Mukushandiswa kwe-high-power inverters, kunyanya inverters pamusoro pe50kW, mareactor anogona kunyatso kudzikisa kuchinja kwezvino uye kuderedza kukanganiswa kwegridi nemidziyo.
Giridhi yakakura kuchinja kwemagetsi: maReactor anogona kudzvanya grid voltage kushanduka kuti ave nechokwadi chekushanda kwakajairika kweiyo inverter, kunyanya munzvimbo dzine grid voltage isina kugadzikana kana isina kusimba.
Typical applications: inverters ine yakakwirira-simba mitoro semagetsi emagetsi, inorema muchina, uye migodhi; akasimba maindasitiri grid nharaunda anodiwa.

2. Mamiriro ezvinhu apo mafirita anodiwa
Matambudziko eruzha rwepamusoro-frequency mumadhiraivha: Iyo yakakwirira-frequency switching ruzha inogadzirwa neiyo inverter inogona kukonzera kukanganiswa kwemagetsi (EMI) kumota uye yakatenderedza midziyo yemagetsi. Kana application yako ichida kudzikisa kukanganiswa kwemagetsi, kana kana midziyo yemagetsi inonzwisisika (senge PLCs, sensors, nezvimwewo) ichishanda padyo, mafirita anodiwa zvakanyanya.
Tevedzera ne electromagnetic kuenderana (EMC) zvinodiwa: Kana iyo michina ichida kusangana neyakaomesesa EMC zviyero, iyo sefa inogona kunyatso kudzikisa kukanganiswa kwemagetsi emagetsi radiation uye conduction kuti ive nechokwadi chekuti michina inosangana nenyika kana yepasi rose electromagnetic kuenderana zviyero.
Natsiridza mashandiro emota: Kana iyo inverter ichityaira mota uye paine matambudziko akadai semota overheating, kuwedzera ruzha kana vibration, iyo sefa inogona kudzikisa kukanganisa kunokonzerwa ne-high-frequency harmonics.
Yakajairika maapplication: Zvikumbiro zvine zvakaomesesa zvinodikanwa pakukanganiswa kwemagetsi, senge yakakwira-chaiyo kugadzira, midziyo yemurabhoritari, michina yekutaurirana, michina yekurapa, nezvimwe.

3. Mamiriro ezvinhu apo mabhureki resistors anodiwa
Kakawanda kutanga / kumira kana mabhureki zvinodiwa: Mumamiriro ezvinhu apo kazhinji kutanga uye kumira kunodiwa, simba rekuvandudza rinogadzirwa nemota nekuda kweinertia rinogona kuita kuti DC bhazi voltage rikwire zvakanyanya. Panguva ino, chinodzivirira bhureki chinodiwa kutora chikamu ichi chesimba kudzivirira voltage kubva pakudarika mwero uye kuve nechokwadi chekushanda kwakajairika kweiyo inverter.
Yepamusoro-mutoro maapplication ane kushanda kwenguva refu: Kana mota yakaremerwa uye ichimhanya kwenguva yakareba, kunyanya kana mota ichidzikira kana kumira, inogona kuburitsa yakakura reverse simba. Iyo brake resistor inogona kudzivirira mota kubva pakuburitsa yakawandisa voltage nekuda kwe inertia.
Zvishandiso zvinoda kukurumidza kudzima kana kuremerwa mutoro: Semuyenzaniso, mumashandisirwo akadai semabhandi ekutakurisa uye elevator zvinoda kukurumidza kudzima, mabhureki resistors anogona kukurumidza kudzika mota uye kupfupisa nguva yekumira.
Yakajairika maapplication: cranes, mabhandi ekutakurisa, machira emuchina, elevator, mafeni uye pombi dzinotanga nekumira nekukurumidza, nezvimwe.
4. Mamiriro ezvinhu apo mabhureki mayuniti anodiwa
Nguva dzekuti simba rekuvandudza rinoda kudzorwa: Kana mota ichida kushandiswa mune yekukurumidza kumira kana kudzosera kumashure braking, iyo DC bhazi voltage inogona kunge yakanyanya kukwirisa. Iyo brake unit inogona kutarisa uye kudzora iyi voltage kuona kuti haikonzere kukuvadza kune inverter.
Simba rekuvandudza rinodzoserwa nemotor yakakura: Kune ma-inverters emagetsi, kunyanya pamitoro mikuru ye inertia senge mafeni, pombi, michina inorema, nezvimwewo, simba rekuvandudza rinogadzirwa nemota inertia rakakura. Iyo brake unit inoshandiswa pamwe chete neiyo brake resistor kuve nechokwadi chekuti regenerative simba rinonyatso kunyudzwa uye kudzivirira kutadza kunokonzerwa neakawandisa voltage.
Kushanda pasi pemutoro wakakwira uye yakakwira masimba emamiriro: Semuenzaniso, mumamiriro ezvinhu anowanzoitika shanduko yekumhanya inodiwa (senge elevator nemacranes), iyo brake unit inogona kubatsira nekukurumidza kushandisa simba remhinduro uye kudzivirira inverter uye mota.
Yakajairika maapplication: yakakwira dynamic mhinduro mota dhiraivha masisitimu, senge elevator, cranes, mabhandi anotakura, otomatiki ekugadzira mitsara, nezvimwe.

Pfupiso:
Izvi zvikamu zvinowanzodiwa muzviitiko zvinotevera:

Kana iyo grid yemhando yakashata, iyo harmonics yakakura, kana kushanduka kwemagetsi kwakakura, isa reactor kuchengetedza inverter uye grid.

Kana paine zvakaomesesa zvinodikanwa zvekukanganiswa kwemagetsi (EMI) kana kutsetseka kwekushanda kwemota kunoda kuvandudzwa, isa sefa.
Kune maapplication anogara achitanga / kumira kana kukurumidza kudzikisira, zvinodikanwa kuisa brake resistor uye brake unit kubatsira kudzora mhinduro regenerative simba uye kuve nechokwadi chekushanda kwakachengeteka kweiyo inverter uye mota.
Kana izvi zvikamu zvinoda kuiswa zvinoenderana nezvinodiwa chaizvo zvehurongwa, rudzi rwekutakura, uye nharaunda yekushanda. Kune maapplication ane simba guru, kazhinji kutanga/kumira, kana kuomarara kwemagetsi zvinodiwa, izvi zvekuwedzera zvikamu zvinowanzo fungwa.