Vim li cas cov zis ntawm ib-theem sib txawv ntawm cov khoom siv hluav taws xob peb-theem?

1, Txoj cai ua haujlwm

Ib theem sib txawv ntawm cov khoom siv hluav taws xob ib zaug yog DC fais fab mov uas siv ib theem AC fais fab mov raws li cov tswv yim, raug kho kom tau txais DC lub zog, thiab tom qab ntawd tswj los ntawm inverter kom tso tawm peb-theem AC fais fab mov. Yog li ntawd, qhov tso zis ntawm ib theem ib zaug kuj sib txawv ntawm lub hwj huam mov yog peb-theem vim nws siv inverter module los hloov cov tam sim no ncaj qha mus rau peb-theem alternating tam sim no.

2, Qhov sib txawv ntawm ib theem thiab peb theem

Ob theem ib theem thiab peb-theem yog AC hluav taws xob, tab sis ib-theem hluav taws xob tsuas muaj ib theem xwb, txhais tau hais tias tam sim no thiab voltage cycles yog tib yam, thaum peb-theem hluav taws xob muaj peb theem, thiab peb-theem tam sim no thiab voltage. yog interleaved los ntawm 120 degrees. Qhov no interleaving txhim khu kev ruaj ntseg thiab kev cia siab ntawm peb-theem hluav taws xob, ua rau nws siv dav hauv kev lag luam thiab kev lag luam.

Ib txoj hauv kev rau ib-theem sib txawv ntawm cov khoom siv hluav taws xob sib txawv kom tso tawm peb-theem.

1. Siv peb-theem choj caj npab inverter.

2. Kev siv lub plhaub peb-theem inverter.

3. Txais SPWM modulation algorithm.

Peb-theem choj caj npab inverter yog ib txoj hauv kev siv ntau tshaj plaws los tso tawm peb-theem los ntawm ib-theem sib txawv ntawm cov khoom siv hluav taws xob.

Qhov zoo ntawm ib-theem sib txawv ntawm zaus fais fab mov outputting peb-theem

1. Raws li kev lag luam siv hluav taws xob tsawg zog inverter, ib-theem sib txawv zaus lub zog hluav taws xob nthuav tawm zoo ruaj khov thiab zoo hauv nws cov yam ntxwv peb-theem tso zis.

2. tuaj yeem ua tau raws li daim ntawv thov ntawm lub zog qis peb-theem motors.

3. Peb-theem fais fab mov tsis yooj yim los yog tsis muaj nyob rau qee kis. Peb-theem hluav taws xob tso tawm ntawm ib-theem sib txawv ntawm cov khoom siv hluav taws xob tuaj yeem ua tau raws li qee qhov tshwj xeeb.

Nyob rau hauv cov ntsiab lus, qhov tso zis ntawm ib-theem sib txawv zaus zog mov yog tsuas yog vim nws cov inverter module converting DC hwj chim rau peb-theem AC zog. Inverters thiab lwm yam kev txhais tau tias zoo xyuas kom muaj kev ruaj ntseg thiab zoo ntawm peb-theem tso zis ntawm ib-theem sib txawv zaus cov khoom siv hluav taws xob, thiab yog li ntawd dav siv nyob rau hauv qis-fais fab peb-theem motors thiab qee qhov kev siv tshwj xeeb.