Kodi zero crossing scr power regulator ndi chiyani?

Kuwongolera kwa Zero ndi njira yodziwika bwino yowongolerachowongolera mphamvu, makamaka pamene katundu ali mtundu wotsutsa.

Thyristor imatsegulidwa kapena kuzimitsidwa pamene voteji ndi zero, ndipo mphamvu ikhoza kusinthidwa mwa kusintha chiŵerengero cha thyristor pa nthawi ndi nthawi.Zero kuwoloka njira yowoloka titha kugawa nthawi yokhazikika zero kuwoloka ndi nthawi yosinthika zero kuwoloka njira ziwiri.

Nthawi yokhazikika zero kuwoloka zero (PWM zero kuwoloka): nthawi yokhazikika zero-kuwoloka njira ndi kulamulira pafupifupi mphamvu ya katunduyo mwa kusintha kuzungulira kwa ntchito pa nthawi yokhazikika.Chifukwa amazimitsa ndi kuzimitsa pa zero mfundo ya magetsi, mu unit wa yoweyula wathunthu, palibe theka yoweyula chigawo chimodzi, izo sizingabweretse kusokoneza mkulu-pafupipafupi, ndi mphamvu chinthu akhoza kufika, kotero ndi mphamvu kwambiri. -kupulumutsa.

Kuwoloka kwanthawi yosinthika zero (CYCLE zero kuwoloka): Nthawi yosinthira zero kuwoloka njira imakhalanso yozimitsa paziro kuwoloka kwa magetsi.Poyerekeza ndi PWM mode, palibe nthawi yolamulira yokhazikika, koma nthawi yolamulira imafupikitsidwa momwe zingathere, ndipo mafupipafupi amagawidwa mofanana molingana ndi chiwerengero cha kutulutsa mkati mwa nthawi yolamulira.Komanso yoweyula wathunthu ngati unit, palibe theka yoweyula chigawo chimodzi, angathe kufika pa mphamvu, komanso kupulumutsa magetsi.

Kuchokera pachithunzi chomwe chili pansipa, titha kuwona momveka bwino kuti pansi pa zero-kuwoloka kuwongolera, kuti musinthe mphamvu yotulutsaowongolera mphamvu, tikhoza kukwaniritsa cholinga cholamulira mphamvu mwa kusintha chiwerengero cha ma SCR ndi kutseka, chomwe chiri chophweka kwambiri.Komabe, tidzawonanso kuti kuwongolera pafupipafupi kumakhala koyenera pazochitika zomwe kuwongolera kuwongolera sikuli kwakukulu, ngati zofunikira zowongolera ndizokwera, ndiye kuti njira yoyendetsera ma frequency siili yoyenera.