Thyristor Converter: mbali ya ntchito ndi chitukuko ziyembekezo

Kuphunzira kwa katundu wa semiconductors analola kulenga zinthu zatsopano zimene zagwiritsidwa ntchito mwakhama m'madera osiyanasiyana amagetsi. Pang'onopang'ono kumeneko anali amphamvu kwambiri zipangizo zimene zingathe kusintha madera a mphamvu yapamwamba.

Chitsanzo chabwino cha ichi ndi thyristor Converter. Popeza penipeni, iye anayamba kukhala ndi kutchuka choyenera pakati okonza. chipangizo ichi chimagwiritsidwa ntchito mu madera osiyanasiyana magetsi: sitata ndi batire chargers, makina kuwotcherera, heaters, inverters, ankalamulira rectifiers , etc. Izi si mndandanda wa zipangizo zimene thyristor Converter ntchito.

M'kupita kwa nthawi, panali zida zamphamvu kudzera imene anakhala zotheka kulamulira liwiro Motors magetsi kapena zomera magetsi. Iwo akhala ntchito mwakhama kusindikiza, ndi zina ngakhale m'malo dongosolo chikhalidwe pa nthawi "jenereta-galimoto" (GD).

Kukweza kulamulira madera kwambiri kuchuluka kudalirika kwa izi zipangizo. Wamphamvu thyristor Converter angathe kulamulira kwa malemeredwe panopa, kapena kuwonjezekeredwa mwachindunji mu nangula unyolo engine. Komabe, dongosolo loyamba la ulamuliro zimachitika-gawo (IFSB) Nthawi zambiri zinthu erratically. Izi zingadzetse, kunena, "masaka pa" wa inverter ndi linanena bungwe la zigawo mphamvu ya dongosolo. The structural m'munsi, nayenso, masamba kwambiri wolakalakika. Mavuto awa ndi chinthu chakale. Panali odalirika amagetsi chipangizo chimene adzatsekeredwa ankalamulira ndipo ngati n'koyenera, kuteteza tcheru zimamuchulukira thyristor Converter. M'pofunikanso kuona dzuwa mkulu, maintainability zabwino ndi kukula yaing'ono chipangizo ndi ulemu kachitidwe njira.

Koma kuwonjezera pa ntchito zabwino, makina onga adzalandira zolakwa zina poyerekezera ndi dera mphamvu:

• The chiŵerengero cha mphamvu zotakasika ndi yogwira ntchito iwo sasintha kwa bwino kwa chonse mbali yobweretsa maukonde. Kupulumutsa Ko φ kugwiritsa ntchito compensators mphamvu zotakasika pamaziko a capacitors lapansi.

• Mu ntchito zake, thyristor converters ndithu kwambiri uwononge mphamvu zopezera pafupipafupi kusokonezedwa mkulu. wapadera RC-madera ntchito kulimbana sangathe izi.

Ndi ntchito zipangizo mwapadera akhoza kusintha chizindikiro monga pafupipafupi mains lapansi. Izo ntchito mu ng'anjo kupatsidwa ulemu, pamene kupanga zitsulo kapena makhazikitsidwe zina zamagetsi. nchito imeneyi imagwiridwa ndi mwapadera kuti zithandize cholinga thyristor pafupipafupi Converter. chilengedwe chake kwambiri bwino alipo pa nthawi ya luso zitsulo ntchito kuntchito.

M'kupita kwa nthawi, zipangizo zina kuti ntchito kwathunthu mfundo zina. ziwembu olemera pa maziko a mkulu-mphamvu IGBT-transistors kuti ntchito kulamulira Motors mphamvu otsika ndi sing'anga. Iwo pang'onopang'ono m'malo machitidwe achikale.