Kukula kwa msika wa high voltage frequency drive

Ndi chitukuko chofulumira chaukadaulo wamakono wamagetsi amagetsi ndi ukadaulo wowongolera makompyuta, kusintha kwaukadaulo kwamagetsi amagetsi kwalimbikitsidwa.Kuwongolera liwiro la Ac m'malo mowongolera liwiro la DC, kuwongolera kwa digito pakompyuta m'malo mwa kuwongolera kwa analogi kwakhala njira yachitukuko.Kuwongolera kuthamanga kwa ma frequency a Ac motor ndiye njira yayikulu yopulumutsira mphamvu, kukonza njira zopangira, kukonza zinthu, komanso kukonza malo ogwirira ntchito.Kusinthasintha pafupipafupi liwiro lamulondi magwiridwe ake apamwamba, mphamvu yayikulu, komanso kuwongolera liwiro komanso kuwongolera mabuleki ndi maubwino ena ambiri amawonedwa ngati malamulo odalirika kwambiri othamanga.

Zakalehigh-voltage inverter, wopangidwa ndi thyristor rectifier, thyristor inverter ndi zipangizo zina, ali ndi zofooka zambiri, ma harmonics akuluakulu, ndipo zimakhudza pa gridi yamagetsi ndi galimoto.M'zaka zaposachedwapa, zida zina zatsopano zapangidwa zomwe zidzasintha izi, monga IGBT, IGCT, SGCT ndi zina zotero.Ma inverter apamwamba kwambiri omwe amapangidwa ndi iwo amakhala ndi magwiridwe antchito abwino kwambiri ndipo amatha kuzindikira inverter ya PWM komanso kukonzanso kwa PWM.Osati ma harmonics okha omwe ali ang'onoang'ono, komanso mphamvu yamagetsi imakhala bwino kwambiri

Ac frequency kutembenuka liwiro malamulo luso ndi osakaniza amphamvu ndi ofooka magetsi, makina ndi magetsi kaphatikizidwe luso, osati kuthana ndi kutembenuka kwa mphamvu yaikulu (kukonza, inverter), komanso kuthana ndi kusonkhanitsa deta, kusintha ndi kufala. , kotero iyenera kugawidwa kukhala mphamvu ndikulamulira magawo awiri.Yoyambayo iyenera kuthetsa mavuto aukadaulo okhudzana ndi kukwera kwamagetsi komanso kuchuluka kwapano, ndipo yomalizayo iyenera kuthana ndi zovuta zamapulogalamu ndi ma hardware.Choncho, m'tsogolo mkulu voteji pafupipafupi kutembenuka liwiro malamulo luso adzapangidwanso mbali ziwiri izi, ntchito yake yaikulu ndi:

(1) Thehigh voltage variable frequencyidzakula molunjika ku mphamvu yayikulu, miniaturization ndi yopepuka.

(2) TheapamwambaVoltage variable frequency driveadzapanga mbali ziwiri: molunjika chipangizo mkulu voteji ndi angapo superposition (zida chipangizo ndi mayunitsi mndandanda).

(3) Zida zatsopano za semiconductor zokhala ndi ma voliyumu apamwamba komanso apamwamba kwambiri zidzagwiritsidwa ntchitohigh voltage variable frequency drive

(3) Panthawiyi, IGBT, IGCT, SGCT idzagwirabe ntchito yaikulu, SCR, GTO idzatuluka pamsika wa inverter.

(4) Kugwiritsa ntchito kuwongolera vekitala, kuwongolera kusinthasintha komanso ukadaulo wowongolera makokedwe molunjika popanda sensor yothamanga kudzakhala okhwima.

(5) Kuzindikira kwathunthu digito ndi zochita zokha: ukadaulo wodzipangira nokha;Njira ukadaulo wodzipangira nokha;Ukadaulo wodzizindikiritsa wolakwa.

(6) Kugwiritsa ntchito 32-bit MCU, DSP ndi ASIC zipangizo, kukwaniritsa mwatsatanetsatane mkulu ndi Mipikisano ntchito inverter.

(7) Mafakitale othandizira ogwirizana akupita ku ukatswiri ndi chitukuko chachikulu, ndipo kugawanika kwa anthu ogwira ntchito kudzakhala koonekeratu.